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  • UCC28C40DR图
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产品型号UCC28C40DR的概述

UCC28C40DR 概述 UCC28C40DR 是一款高性能的脉宽调制 (PWM) 控制器,广泛应用于开关电源及各种电源管理方案。该芯片由德州仪器(Texas Instruments)生产,旨在提供优异的性能和灵活性。其设计目标是支持各种电源拓扑,如反激式、正激式和推挽式转换器,适用于多种工业和消费应用。 详细参数 UCC28C40DR 的主要参数包括: - 工作电压范围: 8V至40V,适合多种电源输入条件。 - 最大输出电流: 芯片支持最大输出电流为一百毫安,能够适应较高功率的应用场景。 - 振荡频率: 默认振荡频率为100 kHz,具备可调功能,允许设计人员根据特定需求进行优化。 - 启动电流: 启动电流典型值为30 µA,确保芯片在各种条件下都能可靠启动。 - 温度范围: 可在-40℃至+125℃的工作环境下正常运行,适应严苛的工业环境。 制造商、包装和封装 UCC28C4...

产品型号UCC28C40DR的Datasheet PDF文件预览

UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER  
FEATURES  
DESCRIPTION  
D
Enhanced Replacement for UC3842A Family  
With Pin-to-Pin Compatibility  
UCC38C4x family is a high-performance current-  
mode PWM controller. It is an enhanced BiCMOS  
version with pin-for-pin compatibility to the  
industry standard UC384xA family and UC384x  
family of PWM controllers. In addition, lower  
startup voltage versions of 7 V are offered as  
UCC38C40 and UCC38C41.  
D
D
D
D
1-MHz Operation  
50-μA Standby Current, 100-μA Maximum  
Low Operating Current of 2.3 mA at 52 kHz  
Fast 35-ns Cycle-by-Cycle Overcurrent  
Limiting  
Providing necessary features to control fixed  
frequency, peak current-mode power supplies,  
this family offers the following performance  
advantages. The device offers high-frequency  
operation up to 1 MHz with low start-up and  
operating currents, thus minimizing start-up loss  
and low operating power consumption for  
improved efficiency. The device also features a  
very fast current-sense-to-output delay time of  
35 ns and a ±1 A peak output current capability  
with improved rise and fall times for driving large  
external MOSFETs directly.  
D
D
±1-A Peak Output Current  
Rail-to-Rail Output Swings with 25-ns Rise  
and 20-ns Fall Times  
D
±1% Initial Trimmed 2.5-V Error Amplifier  
Reference  
D
D
D
Trimmed Oscillator Discharge Current  
New Under Voltage Lockout Versions  
MSOP-8 Package Minimizes Board Space  
APPLICATIONS  
D
D
D
Switch-Mode Power Supplies  
The UCC38C4x family is offered in 8-pin  
packages, MSOP (DGK), SOIC (D) and PDIP (P).  
dc-to-dc Converters  
Board Mount Power Modules  
FUNCTIONAL BLOCK DIAGRAM  
5.0 V  
VREF  
8
VREF  
7
5
VDD  
GND  
UVLO  
+
VREF  
GOOD LOGIC  
RT/CT  
4
OSC  
(NOTE)  
T
6
OUT  
2.5 V  
ERROR AMP  
2R  
+
S
R
Q
FB  
COMP  
CS  
2
1
3
R
1V  
Q
Note: Toggle flip--flop used only in UCC38C41, UCC38C44, and UCC38C45.  
UDG--99139  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments  
semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2003 -- 2010, Texas Instruments Incorporated  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
recommended operating conditions  
MIN  
MAX  
18  
UNIT  
V
Input voltage, V  
DD  
Output voltage range, V  
18  
V
OUT  
W
Average output current, I  
200  
-- 2 0  
105  
mA  
mA  
°C  
OUT  
W
Reference output current, I  
OUT(ref)  
W
Operating junction temperature, T  
-- 4 0  
J
It is not recommended that the device operate under conditions beyond those specified in this table for extended periods of time.  
absolute maximum ratings over operating free-air temperature (unless otherwise noted)}w  
Supply voltage (VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 V  
(MAX ICC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA  
Output current, IOUT peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1 A  
Output energy, capacitive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 μJ  
Voltage rating (COMP, CS, FB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --0.3 V to 6.3 V  
(OUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --0.3 V to 20 V  
(RT/CT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --0.3 V to 6.3 V  
(VREF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V  
Error amplifier output sink current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA  
Total Power Dissipation at TA = 25°C: D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 °C/W  
DGK package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120°C/W  
P package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C/W  
Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -- 5 5 °C to 150°C  
Storage temperature range Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -- 6 5 °C to 150°C  
Lead Temperature (Soldering, 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C  
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and  
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not  
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
All voltages are with respect to ground. Currents are positive into and negative out of the specified terminals. Consult the Packaging Section of  
the Databook for thermal limitations and considerations of the package.  
§
AVAILABLE OPTIONS  
SOIC--8  
SMALL OUTLINE  
(D){  
PDIP--8  
PLASTIC DIP  
(P)  
MSOP--8  
SMALL OUTLINE  
(DGK){  
MAXIMUM  
DUTY CYCLE  
UVLO  
ON/OFF  
T
A
= T  
J
14.5V / 9.0V  
8.4V / 7.6V  
7.0V / 6.6V  
14.5V / 9.0V  
8.4V / 7.6V  
7.0V / 6.6V  
14.5V / 9.0V  
8.4V / 7.6V  
7.0V / 6.6V  
14.5V / 9.0V  
8.4V / 7.6V  
7.0V / 6.6V  
UCC28C42D  
UCC28C43D  
UCC28C40D  
UCC28C44D  
UCC28C45D  
UCC28C41D  
UCC38C42D  
UCC38C43D  
UCC38C40D  
UCC38C44D  
UCC38C45D  
UCC38C41D  
UCC28C42P  
UCC28C43P  
UCC28C40P  
UCC28C44P  
UCC28C45P  
UCC28C41P  
UCC38C42P  
UCC38C43P  
UCC38C40P  
UCC38C44P  
UCC38C45P  
UCC38C41P  
UCC28C42DGK  
UCC28C43DGK  
UCC28C40DGK  
UCC28C44DGK  
UCC28C45DGK  
UCC28C41DGK  
UCC38C42DGK  
UCC38C43DGK  
UCC38C40DGK  
UCC38C44DGK  
UCC38C45DGK  
UCC38C41DGK  
100%  
50%  
-- 4 0 °C to 105°C  
100%  
50%  
0°C to 70°C  
D (SOIC--8) and DGK (MSOP--8) packages are available taped and reeled. Add R suffix to device type (e.g.  
UCC28C42DR) to order quantities of 2500 devices per reel. Tube quantities are 75 for D packages (SOIC--8) and  
80 for DGK package (MSOP--8), and 50 for P package (PDIP-8).  
2
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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
electrical characteristics VDD = 15 V (See Note 1), RT = 10 k, CT = 3.3 nF, CVDD = 0.1μF and no load  
on the outputs, TA = --40°C to 105°C for the UCC28C4x and TA = 0°C to 70°C for the UCC38C4x,  
TA = TJ (unless otherwise noted)  
PARAMETER  
Reference Section  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
Output voltage, initial accuracy  
Line regulation  
T
= 25°C  
I
= 1mA  
OUT  
4.9  
5.0  
5.1  
20  
V
mV  
mV  
mV/°C  
V
A
V
= 12 V to 18 V  
0.2  
3
DD  
Load regulation  
1mA to 20mA  
See Note 2  
25  
Temperature stability  
Total output variation  
Output noise voltage  
Long term stability  
Output short circuit  
Oscillator Section  
Initial accuracy  
0.2  
0.4  
5.18  
See Note 2  
4.82  
10 Hz to 10 kHz,  
1000 hours,  
T
A
= 25°C,  
See Note 2  
See Note 2  
50  
5
μV  
T
A
= 125°C,  
25  
mV  
mA  
–30  
–45  
–55  
T
A
= 25°C,  
See Note 3  
See Note 2  
50.5  
53  
0.2%  
1%  
55  
1.0%  
2.5%  
kHz  
Voltage stability  
V
= 12 V to 18 V  
DD  
Temperature stability  
Amplitude  
T
MIN  
to T  
,
MAX  
RT/CT Pin peak-to-peak  
1.9  
V
T
= 25°C,  
RT/CT = 2 V,  
See Note 4  
See Note 4  
7.7  
7.2  
8.4  
9.0  
9.5  
mA  
mA  
A
Discharge current  
RT/CT = 2 V,  
8.4  
Error Amplifier Section  
Feedback input voltage, initial accuracy  
Feedback input voltage, total variation  
Input bias current  
V
V
V
V
= 2.5 V,  
= 2.5 V,  
T
= 25°C  
2.475  
2.45  
2.500  
2.50  
–0.1  
90  
2.525  
2.55  
–2.0  
V
V
COMP  
COMP  
A
= 5.0 V  
μA  
dB  
MHz  
dB  
mA  
mA  
V
FB  
Open-loop voltage gain (A  
Unity gain bandwidth  
)
= 2 V to 4 V  
65  
1.0  
60  
VOL  
OUT  
See Note 2  
1.5  
Power supply rejection ratio (PSRR)  
Output sink current  
V
V
V
V
V
= 12 V to 18 V  
= 2.7 V,  
DD  
FB  
FB  
FB  
FB  
V
V
= 1.1 V  
2
14  
–1.0  
6.8  
COMP  
COMP  
Output source current  
High-level output voltage (VOH)  
Low-level output voltage (VOL)  
Current Sense Section  
Gain  
= 2.3 V,  
= 5V  
–0.5  
5
= 2.7 V,  
R
= 15 k to GND  
= 15 k to VREF  
LOAD  
LOAD  
= 2.7 V,  
R
0.1  
1.1  
V
See Note 5, 6  
V < 2.4 V  
FB  
2.85  
0.9  
3.00  
1.0  
3.15  
1.1  
V/V  
V
Maximum input signal  
Power supply rejection ratio (PSRR)  
Input bias current  
VDD = 12 V to 18 V, See Note 2, 5  
70  
dB  
μA  
ns  
V
–0.1  
35  
–2.0  
70  
CS to output delay  
COMP to CS offset  
V
= 0 V  
1.15  
CS  
NOTE: 1. Adjust V above the start threshold before setting at 15 V.  
DD  
NOTE: 2. Ensured by design. Not production tested.  
NOTE: 3. Output frequencies of the UCC38C41, UCC38C44 and the UCC38C45 are half the oscillator frequency.  
NOTE: 4. Oscillator discharge current is measured with R = 10 kto V  
T
REF.  
NOTE: 5. Parameter measured at trip point of latch with V = 0 V.  
FB  
ΔV  
COM  
NOTE: 6. Gain is defined as ACS =  
, 0V V  
900mV  
CS  
ΔV  
CS  
3
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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
electrical characteristics VDD = 15 V (See Note 1), RT = 10 k, CT = 3.3 nF, CVDD = 0.1μF and no load  
on the outputs, TA = --40°C to 105°C for the UCC28C4x and TA = 0°C to 70°C for the UCC38C4x,  
TA = TJ (unless otherwise noted)  
PARAMETER  
Output Section  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
V
V
low (R  
pull-down)  
pull-up)  
I
I
= 200 mA  
5.5  
15  
25  
50  
40  
OUT  
OUT  
DS(on)  
DS(on)  
SINK  
high (R  
= 200 mA  
= 25°C,  
10  
25  
20  
SOURCE  
Rise tIme  
Fall time  
T
C
C
= 1 nF  
= 1 nF  
A
LOAD  
ns  
T
= 25°C,  
A
LOAD  
Undervoltage Lockout Section  
UCC38C42, UCC38C44  
UCC38C43, UCC38C45  
UCC38C40, UCC38C41  
UCC38C42, UCC38C44  
UCC38C43, UCC38C45  
UCC38C40, UCC38C41  
13.5  
14.5  
8.4  
7.0  
9
15.5  
9.0  
7.5  
10  
7.8  
6.5  
8
Start threshold  
V
7.0  
6.1  
7.6  
6.6  
8.2  
7.1  
Minimum operating voltage  
PWM Section  
UCC38C42, UCC38C43, UCC38C40, V < 2.4 V  
94%  
47%  
96%  
48%  
FB  
Maximum duty cycle  
UCC38C44, UCC38C45, UCC38C41, V < 2.4 V  
FB  
Minimum duty cycle  
V
> 2.6 V  
0%  
FB  
Current Supply Section  
Start-up current (I  
)
V
V
= Undervoltage lockout start threshold (--0.5 V)  
50  
100  
3.0  
μA  
START-UP  
DD  
FB  
Operating supply current (I  
)
= V = 0 V  
2.3  
mA  
DD  
CS  
NOTE 1: Adjust V above the start threshold before setting at 15 V.  
DD  
PDIP (P) or SOIC (D) PACKAGE  
(TOP VIEW)  
MSOP (DGK) PACKAGE  
(TOP VIEW)  
COMP  
FB  
CS  
RT/CT  
VREF  
VDD  
OUT  
GND  
8
7
6
5
1
2
3
4
COMP  
FB  
CS  
RT/CT  
VREF  
VDD  
OUT  
GND  
1
2
3
4
8
7
6
5
4
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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
pin assignments  
COMP: This pin provides the output of the error amplifier for compensation. In addition, the COMP pin is  
frequently used as a control port by utilizing a secondary-side error amplifier to send an error signal across the  
secondary-primary isolation boundary through an opto-isolator.  
CS: The current sense pin is the non-inverting input to the PWM comparator. This is compared to a signal  
proportional to the error amplifier output voltage. A voltage ramp can be applied to this pin to run the device with  
a voltage mode control configuration.  
FB: This pin is the inverting input to the error amplifier. The non-inverting input to the error amplifier is internally  
trimmed to 2.5 V ±1%.  
GND: Ground return pin for the output driver stage and the logic level controller section.  
OUT: The output of the on-chip drive stage. OUT is intended to directly drive a MOSFET. The OUT pin in the  
UCC38C40, UCC38C42 and UCC38C43 is the same frequency as the oscillator, and can operate near 100%  
duty cycle. In the UCC38C41, UCC38C44 and the UCC38C45, the frequency of OUT is one-half that of the  
oscillator due to an internal T flipflop. This limits the maximum duty cycle to < 50%.  
RT/CT: Timing resistor and timing capacitor. The timing capacitor should be connected to the device ground  
using minimal trace length.  
VDD: Power supply pin for the device. This pin should be bypassed with a 0.1-μF capacitor with minimal trace  
lengths. Additional capacitance may be needed to provide hold up power to the device during startup.  
VREF: 5-V reference. For stability, the reference should be bypassed with a 0.1-μF capacitor to ground using  
the minimal trace length possible.  
5
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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
APPLICATION INFORMATION  
This device is a pin-for-pin replacement of the bipolar UC3842 family of controllers, the industry standard PWM  
controller for single-ended converters. Familiarity with this controller family is assumed.  
The UCC28C4x/UCC38C4x series is an enhanced replacement with pin-to-pin compatibility to the bipolar  
UC284x/UC384x and UC284xA/UC384xA families. The new series offers improved performance when  
compared to older bipolar devices and other competitive BiCMOS devices with similar functionality. Note that  
these improvements discussed below generally consist of tighter specification limits that are a subset of the  
older product ratings, maintaining drop-in capability. In new designs these improvements can be utilized to  
reduce the component count or enhance circuit performance when compared to the previously available  
devices.  
advantages  
This device increases the total circuit efficiency whether operating off-line or in dc input circuits. In off-line  
applications the low start-up current of this device reduces steady state power dissipation in the startup resistor,  
and the low operating current maximizes efficiency while running. The low running current also provides an  
efficiency boost in battery operated supplies.  
low voltage operation  
Two members of the UCC38C4x family are intended for applications that require a lower start-up voltage than  
the original family members. The UCC38C40 and UCC38C41 have a turn-on voltage of 7.0 V typical and exhibit  
hysteresis of0.4 Vfor aturn-off voltageof 6.6V. This reduced start-upvoltage enables use insystems withlower  
voltages, such as 12-V battery systems which are nearly discharged.  
high speed operation  
The BiCMOS design allows operation at high frequencies that were not feasible in the predecessor bipolar  
devices. First, the output stage has been redesigned to drive the external power switch in approximately half  
the time of the earlier devices. Second, the internal oscillator is more robust with less variation as frequency  
increases. In addition, the current sense to output delay has been reduced by a factor of three, to 45ns typical.  
These features combine to provide a device capable of reliable high frequency operation.  
The UCC38C4x family oscillator is true to the curves of the original bipolar devices at lower frequencies yet  
extends the frequency programmability range to at least 1MHz. This allows the device to offer pin to pin  
capability where required yet capable of extending the operational range to the higher frequencies typical of  
latest applications. When the original UC3842 was released in 1984 most switching supplies operated between  
20kHz and 100kHz. Today, the UCC38C4x can be used in designs cover a span roughly ten times higher than  
those numbers.  
start/run current improvements  
The start--up current is only 60 μA typical, a significant reduction from the bipolar device’s ratings of 300uA  
(UC384xA). For operation over the temperature range of --40 to 85°C the UCC28C4x devices offer a maximum  
startup current of 100 μA, an improvement over competitive BiCMOS devices. This allows the power supply  
designer to further optimize the selection of the startup resistor value to provide a more efficient design. In  
applications where low component cost overrides maximum efficiency the low run current of 2.3 mA, typical,  
may allow the control device to run directly through the single resistor to (+) rail, rather than needing a bootstrap  
winding on the power transformer, along with a rectifier. The start/run resistor for this case must also pass  
enough current to allow driving the primary switching MOSFET, which may be a few milliamps in small devices.  
6
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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
APPLICATION INFORMATION  
± 1% initial reference voltage  
The BiCMOS internal reference of 2.5 V has an enhanced design and utilizes production trim to allow initial  
accuracy of ±1% at room temperature and ± 2% over the full temperature range. This can be used to eliminate  
an external reference in applications that do not require the extreme accuracy afforded by the additional device.  
This is very useful for nonisolated dc-to-dc applications where the control device is referenced to the same  
common as the output. It is also applicable in offline designs that regulate on the primary side of the isolation  
boundary by looking at a primary bias winding, or perhaps from a winding on the output inductor of a  
buck-derived circuit.  
reduced discharge current variation  
The original UC3842 oscillator did not have trimmed discharged current, and the parameter was not specified  
on the datasheet. Since many customers attempted to use the discharge current to set a crude deadtime limit  
the UC3842A family was released with a trimmed discharge current specified at 25°C. The  
UCC28C4x/UCC38C4x series now offers even tighter control of this parameter, with approximately ±3%  
accuracy at 25°C, and less than 10% variation over temperature using the UCC28C4x devices. This level of  
accuracy can enable a meaningful limit to be programmed, a feature not currently seen in competitive BiCMOS  
devices. The improved oscillator and reference also contribute to decreased variation in the peak to peak  
variation in the oscillator waveform, which is often used as the basis for slope compensation for the complete  
power system.  
soft-start  
The following diagram provides a typical soft-start circuit for use with the UCC38C42. The values of R and C  
should be selected to bring the COMP pin up at a controlled rate, limiting the peak current supplied by the power  
stage. After the soft-start interval is complete the capacitor continues to charge to VREF, effectively removing  
the PNP transistor from circuit considerations.  
The optional diode in parallel with the resistor forces a soft-start each time the PWM goes through UVLO and  
the reference (VREF) goes low. Without the diode,the capacitor otherwise remains charged during a brief loss  
of supply or brown-out, and no soft-start is enabled upon reapplication of VIN.  
V
8
1
REF  
UCC38C42  
COMP  
GND  
5
Figure 1  
UDG--01072  
7
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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
APPLICATION INFORMATION  
oscillator synchronization  
The UCC38C4x oscillator has the same synchronization characteristics as the original bipolar devices. Thus,  
the information in the Application Note U--100A, UC3842/3/4/5 Provides Low-Cost Current-Mode Control, (TI  
Literature No. SLUA143) still applies. The application note describes how a small resistor from the timing  
capacitor-to-ground can offer an insertion point for synchronization to an external clock, (see Figures 2 and 3).  
Figure 2 shows how the UCC38C42 can be synchronized to an external clock source. This allows precise  
control of frequency and dead time with a digital pulse train.  
8
4
V
REF  
R
T
SYNCHRONIZATION  
CIRCUIT INPUT  
R
/ C  
T
T
C
T
UCC38C42  
PWM  
24  
UDG--01069  
Figure 2. Oscillator Synchronization Circuit  
UPPER THRESHOLD  
LOWER THRESHOLD  
CLOCK  
INPUT  
LOW  
HIGH  
OFF .  
LOW  
ON .  
PWM  
OUT  
ON .  
OUTPUT A  
VCT (ANALOG)  
UPPER THRESHOLD  
VCT  
LOWER THRESHOLD  
VSYNC (DIGITAL)  
COMBINED  
UDG--01070  
Figure 3. Synchronization to an External Clock  
8
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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
APPLICATION INFORMATION  
precautions  
The absolute maximum supply voltage is 20 V, including any transients that may be present. If this voltage is  
exceeded, device damage is likely. This is in contrast to the predecessor bipolar devices, which could survive  
upto30 V. Thus, thesupply pinshould bedecoupled as close tothe groundpin as possible. Also, since noclamp  
is included in the device, the supply pin should be protected from external sources which could exceed the 20 V  
level.  
Carefullayoutoftheprintedboardhas alwaysbeenanecessity forhighfrequencypower supplies. As thedevice  
switching speeds and operating frequencies increase the layout of the converter becomes increasingly  
important.  
This 8-pin device has only a single ground for the logic and power connections. This forces the gate drive current  
pulses to flow through the same ground that the control circuit uses for reference. Thus, the interconnect  
inductance should be minimized as much as possible. One implication is to place the device (gate driver)  
circuitry close to the MOSFET it is driving. Note that this can conflict with the need for the error amplifier and  
the feedback path to be away from the noise generating components.  
circuit applications  
Figure 4 shows a typical off-line application.  
D50  
F1  
12 V  
OUT  
T1  
R10  
C52  
C55  
C3  
D2  
C12  
AC INPUT  
100 Vac -- 240 Vac  
EMI FILTER  
+
R56  
BR1  
L50  
R11  
D51  
REQUIRED  
C1A  
C18  
5 V  
OUT  
R12  
RT1  
C53  
C54  
D6  
R55  
C5  
SEC  
COMMON  
R6  
R50  
UCC38C44  
R16  
1
2
3
4
COMP REF  
8
7
6
5
IC2  
Q1  
IC2  
FB  
CS  
VCC  
OUT  
R53  
C50  
R52  
C13  
C51  
R50  
RT/CT GND  
K
IC3  
A
R
R54  
UDG--01071  
Figure 4. Typical Off-Line Application  
Figure 5 shows the forward converter with synchronous rectification. This application provides 48 V to 3.3 V at  
10 A with over 85% efficiency and uses the UCC38C42 as the secondary-side controller and UCC3961 as the  
primary-side startup control device.  
9
www.ti.com  
UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
APPLICATION INFORMATION  
+
+
+
+
Figure 5. Forward Converter with Synchronous Rectification Using the UCC38C42  
as the Secondary-Side Controller  
10  
www.ti.com  
UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
TYPICAL CHARACTERISTICS  
OSCILLATOR FREQUENCY  
OSCILLATOR DISCHARGE CURRENT  
vs  
vs  
TIMING RESISTANCE AND CAPACITANCE  
TEMPERATURE  
9.5  
9.0  
8.5  
10 M  
1 M  
CT = 220 pF  
CT = 470 pF  
CT = 1 nF  
100 k  
10 k  
1 k  
8.0  
7.5  
7.0  
CT = 4.7 nF  
CT = 2.2 nF  
1 k  
10 k  
100 k  
--50  
--25  
0
25  
50  
75  
100  
125  
T
J
-- Temperature -- °C  
R
T
-- Timing Resistance --  
Figure 6  
Figure 7  
COMP to CS OFFSET VOLTAGE (with CS = 0)  
ERROR AMPLIFIER  
FREQUENCY RESPONSE  
vs  
TEMPERATURE  
100  
1.8  
200  
180  
1.6  
1.4  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
160  
140  
GAIN  
1.2  
120  
100  
80  
1.0  
0.8  
0.6  
0.4  
60  
40  
PHASE  
MARGIN  
0.2  
0.0  
20  
0
1
10  
100  
1 k 10 k 100 k 1 M 10 M  
--50  
--25  
0
25  
50  
75  
100  
125  
f -- Frequency -- Hz  
T
J
-- Temperature -- °C  
Figure 8  
Figure 9  
11  
www.ti.com  
UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
TYPICAL CHARACTERISTICS  
REFERENCE VOLTAGE  
vs  
ERROR AMPLIFIER REFERENCE VOLTAGE  
vs  
TEMPERATURE  
TEMPERATURE  
2.55  
2.54  
5.05  
5.04  
5.03  
5.02  
5.01  
2.53  
2.52  
2.51  
2.50  
2.49  
5.00  
4.99  
4.98  
4.97  
4.96  
4.95  
2.48  
2.47  
2.46  
2.45  
--50  
--25  
0
25  
50  
75  
100  
125  
--50  
--25  
0
25  
T -- Temperature -- °C  
J
50  
75  
100  
125  
T
J
-- Temperature -- °C  
Figure 11  
Figure 10  
REFERENCE SHORT-CIRCUIT CURRENT  
ERROR AMPLIFIER INPUT BIAS CURRENT  
vs  
vs  
TEMPERATURE  
TEMPERATURE  
200  
-- 3 5  
-- 3 7  
-- 3 9  
-- 4 1  
150  
100  
50  
0
-- 4 3  
-- 4 5  
-- 4 7  
-- 5 0  
-- 4 9  
-- 5 1  
-- 5 3  
-- 5 5  
--100  
--150  
--200  
--50  
--25  
0
25  
50  
75  
100  
125  
--50  
--25  
0
T
25  
50  
75  
100  
125  
T
J
-- Temperature -- °C  
-- Temperature -- °C  
J
Figure 13  
Figure 12  
12  
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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
TYPICAL CHARACTERISTICS  
UNDERVOLTAGE LOCKOUT  
UNDERVOLTAGE LOCKOUT  
vs  
vs  
TEMPERATURE (UCC38C43 & UCC38C45)  
TEMPERATURE (UCC38C42 & UCC38C44)  
16  
15  
9.0  
8.8  
UVLO  
ON  
14  
13  
8.6  
8.4  
UVLO  
ON  
12  
11  
8.2  
8.0  
7.8  
UVLO  
OFF  
10  
9
7.6  
7.4  
7.2  
7.0  
8
UVLO  
OFF  
7
6
--50  
--25  
0
25  
50  
75  
100  
125  
--50  
--25  
0
25  
50  
75  
100  
125  
T
J
-- Temperature -- °C  
T
J
-- Temperature -- °C  
Figure 14  
Figure 15  
UNDERVOLTAGE LOCKOUT  
vs  
TEMPERATURE (UCC38C40 & UCC38C41)  
7.3  
7.2  
UVLO  
ON  
7.1  
7.0  
6.9  
6.8  
6.7  
6.6  
6.5  
6.4  
UVLO  
OFF  
6.3  
--50  
--25  
0
25  
50  
75  
100  
125  
T
J
-- Temperature -- °C  
Figure 16  
13  
www.ti.com  
UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
TYPICAL CHARACTERISTICS  
SUPPLY CURRENT  
SUPPLY CURRENT  
vs  
OSCILLATOR FREQUENCY  
vs  
TEMPERATURE  
3.0  
2.9  
25  
20  
15  
10  
1-nF LOAD  
2.8  
2.7  
2.6  
2.5  
2.4  
NO LOAD  
NO LOAD  
2.3  
2.2  
5
0
2.1  
2.0  
-- 5 0  
--25  
0
25  
50  
75  
100  
125  
0 k  
200 k  
400 k  
600 k  
800 k  
1 M  
f -- Frequency -- Hz  
T
J
-- Temperature -- °C  
Figure 17  
Figure 18  
OUTPUT RISE TIME AND FALL TIME  
MAXIMUM DUTY CYCLE  
vs  
OSCILLATOR FREQUENCY  
vs  
TEMPERATURE  
40  
100  
10% to 90%  
DD  
V
= 12 V  
35  
CT = 220 pF  
tr  
90  
80  
(1 nF)  
30  
25  
20  
tf  
(1 nF)  
70  
60  
CT = 1 nF  
15  
10  
50  
0
500  
1000  
1500  
--50  
--25  
0
25  
50  
75  
100  
125  
2000  
2500  
T
J
-- Temperature -- °C  
f -- Frequency -- kHz  
Figure 19  
Figure 20  
14  
www.ti.com  
UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
TYPICAL CHARACTERISTICS  
MAXIMUM DUTY CYCLE  
MAXIMUM DUTY CYCLE  
vs  
vs  
TEMPERATURE  
TEMPERATURE  
100  
50  
UCC38C40  
UCC38C42  
UCC38C43  
UCC38C41  
UCC38C44  
UCC38C45  
98  
96  
94  
92  
90  
49  
48  
47  
46  
45  
--50  
--25  
0
25  
50  
75  
100  
125  
--50  
--25  
0
25  
50  
75  
100  
125  
T
J
-- Temperature -- °C  
T
J
-- Temperature -- °C  
Figure 21  
Figure 22  
CURRENT SENSE THRESHOLD VOLTAGE  
CS TO OUT DELAY TIME  
vs  
vs  
TEMPERATURE  
TEMPERATURE  
1.10  
70  
65  
60  
55  
50  
45  
40  
35  
30  
1.05  
1.00  
0.95  
0.90  
--50  
--25  
0
25  
50  
75  
100  
125  
--50  
--25  
0
T
25  
50  
75  
100  
125  
T
J
-- Temperature -- °C  
-- Temperature -- °C  
J
Figure 23  
Figure 24  
15  
www.ti.com  
UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
Revision History  
Revision SLUS458D to SLUS458E, 10/2010  
1) Updated Operating Juction Temperature in the Recommended Operating Conditions Table, from  
--55 to 150 to --40 to 105.  
2) Updated Available Options Table heading from TA to TA = TJ.  
16  
www.ti.com  
PACKAGE OPTION ADDENDUM  
www.ti.com  
16-Aug-2012  
PACKAGING INFORMATION  
Status (1)  
Eco Plan (2)  
MSL Peak Temp (3)  
Samples  
Orderable Device  
Package Type Package  
Drawing  
Pins  
Package Qty  
Lead/  
Ball Finish  
(Requires Login)  
UCC28C40D  
UCC28C40DG4  
UCC28C40DGK  
UCC28C40DGKG4  
UCC28C40DGKR  
UCC28C40DGKRG4  
UCC28C40DR  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
SOIC  
SOIC  
D
D
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
75  
75  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
SOIC  
DGK  
DGK  
DGK  
DGK  
D
80  
Green (RoHS  
& no Sb/Br)  
80  
Green (RoHS  
& no Sb/Br)  
2500  
2500  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
UCC28C40DRG4  
UCC28C40P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC28C40PG4  
UCC28C41D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU N / A for Pkg Type  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
UCC28C41DG4  
UCC28C41DGK  
UCC28C41DGKG4  
UCC28C41DGKR  
UCC28C41DGKRG4  
UCC28C41DR  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
SOIC  
DGK  
DGK  
DGK  
DGK  
D
100  
100  
2500  
2500  
2500  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
16-Aug-2012  
Status (1)  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
Eco Plan (2)  
MSL Peak Temp (3)  
Samples  
Orderable Device  
Package Type Package  
Drawing  
Pins  
Package Qty  
Lead/  
Ball Finish  
(Requires Login)  
UCC28C41DRG4  
UCC28C42D  
SOIC  
SOIC  
D
D
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
2500  
75  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
UCC28C42DG4  
UCC28C42DGK  
UCC28C42DGKG4  
UCC28C42DGKR  
UCC28C42DGKRG4  
UCC28C42DR  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
SOIC  
DGK  
DGK  
DGK  
DGK  
D
100  
100  
2500  
2500  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
UCC28C42DRG4  
UCC28C42P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC28C42PG4  
UCC28C43D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU N / A for Pkg Type  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
UCC28C43DG4  
UCC28C43DGK  
UCC28C43DGKG4  
UCC28C43DGKR  
UCC28C43DGKRG4  
UCC28C43DR  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
SOIC  
DGK  
DGK  
DGK  
DGK  
D
80  
Green (RoHS  
& no Sb/Br)  
80  
Green (RoHS  
& no Sb/Br)  
2500  
2500  
2500  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Addendum-Page 2  
PACKAGE OPTION ADDENDUM  
www.ti.com  
16-Aug-2012  
Status (1)  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
Eco Plan (2)  
MSL Peak Temp (3)  
Samples  
Orderable Device  
Package Type Package  
Drawing  
Pins  
Package Qty  
Lead/  
Ball Finish  
(Requires Login)  
UCC28C43DRG4  
UCC28C43P  
SOIC  
PDIP  
D
P
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
2500  
50  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU N / A for Pkg Type  
UCC28C43PG4  
UCC28C44D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
UCC28C44DG4  
UCC28C44DGK  
UCC28C44DGKG4  
UCC28C44DGKR  
UCC28C44DGKRG4  
UCC28C44DR  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
SOIC  
DGK  
DGK  
DGK  
DGK  
D
80  
Green (RoHS  
& no Sb/Br)  
80  
Green (RoHS  
& no Sb/Br)  
2500  
2500  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
UCC28C44DRG4  
UCC28C44P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC28C44PG4  
UCC28C45D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU N / A for Pkg Type  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
UCC28C45DG4  
UCC28C45DGK  
UCC28C45DGKG4  
UCC28C45DGKR  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
VSSOP  
VSSOP  
DGK  
DGK  
DGK  
100  
100  
2500  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Addendum-Page 3  
PACKAGE OPTION ADDENDUM  
www.ti.com  
16-Aug-2012  
Status (1)  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
Eco Plan (2)  
MSL Peak Temp (3)  
Samples  
Orderable Device  
Package Type Package  
Drawing  
Pins  
Package Qty  
Lead/  
Ball Finish  
(Requires Login)  
UCC28C45DGKRG4  
UCC28C45DR  
VSSOP  
SOIC  
DGK  
D
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
2500  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
CU NIPDAUAGLevel-2-260C-1 YEAR  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
UCC28C45DRG4  
UCC28C45P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC28C45PG4  
UCC38C40D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
UCC38C40DG4  
UCC38C40DGK  
UCC38C40DGKG4  
UCC38C40DGKR  
UCC38C40DGKRG4  
UCC38C40DR  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
SOIC  
DGK  
DGK  
DGK  
DGK  
D
80  
Green (RoHS  
& no Sb/Br)  
80  
Green (RoHS  
& no Sb/Br)  
2500  
2500  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
UCC38C40DRG4  
UCC38C40P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC38C40PG4  
UCC38C41D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
UCC38C41DG4  
UCC38C41DGK  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
DGK  
100  
Green (RoHS  
& no Sb/Br)  
Addendum-Page 4  
PACKAGE OPTION ADDENDUM  
www.ti.com  
16-Aug-2012  
Status (1)  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
Eco Plan (2)  
MSL Peak Temp (3)  
Samples  
Orderable Device  
Package Type Package  
Drawing  
Pins  
Package Qty  
Lead/  
Ball Finish  
(Requires Login)  
UCC38C41DGKG4  
UCC38C41DR  
VSSOP  
SOIC  
DGK  
D
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
100  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
CU NIPDAUAGLevel-2-260C-1 YEAR  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
UCC38C41DRG4  
UCC38C41P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC38C41PG4  
UCC38C42D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
UCC38C42DG4  
UCC38C42DGK  
UCC38C42DGKG4  
UCC38C42DGKR  
UCC38C42DGKRG4  
UCC38C42DR  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
SOIC  
DGK  
DGK  
DGK  
DGK  
D
100  
100  
2500  
2500  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
UCC38C42DRG4  
UCC38C42P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC38C42PG4  
UCC38C43D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
UCC38C43DG4  
UCC38C43DGK  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
DGK  
80  
Green (RoHS  
& no Sb/Br)  
Addendum-Page 5  
PACKAGE OPTION ADDENDUM  
www.ti.com  
16-Aug-2012  
Status (1)  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
Eco Plan (2)  
MSL Peak Temp (3)  
Samples  
Orderable Device  
Package Type Package  
Drawing  
Pins  
Package Qty  
Lead/  
Ball Finish  
(Requires Login)  
UCC38C43DGKG4  
UCC38C43DGKR  
UCC38C43DGKRG4  
UCC38C43DR  
VSSOP  
VSSOP  
VSSOP  
SOIC  
DGK  
DGK  
DGK  
D
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
80  
2500  
2500  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
CU NIPDAUAGLevel-2-260C-1 YEAR  
Green (RoHS  
& no Sb/Br)  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU N / A for Pkg Type  
CU NIPDAU Level-1-260C-UNLIM  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
UCC38C43DRG4  
UCC38C43P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC38C43PG4  
UCC38C44D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
UCC38C44DG4  
UCC38C44DGK  
UCC38C44DGKG4  
UCC38C44DGKR  
UCC38C44DGKRG4  
UCC38C44DR  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
SOIC  
DGK  
DGK  
DGK  
DGK  
D
80  
Green (RoHS  
& no Sb/Br)  
80  
Green (RoHS  
& no Sb/Br)  
2500  
2500  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
UCC38C44DRG4  
UCC38C44P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC38C44PG4  
UCC38C45D  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
SOIC  
D
75  
Green (RoHS  
& no Sb/Br)  
Addendum-Page 6  
PACKAGE OPTION ADDENDUM  
www.ti.com  
16-Aug-2012  
Status (1)  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
Eco Plan (2)  
MSL Peak Temp (3)  
Samples  
Orderable Device  
Package Type Package  
Drawing  
Pins  
Package Qty  
Lead/  
Ball Finish  
(Requires Login)  
UCC38C45DG4  
UCC38C45DGK  
UCC38C45DGKG4  
UCC38C45DGKR  
UCC38C45DGKRG4  
UCC38C45DR  
SOIC  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
SOIC  
D
DGK  
DGK  
DGK  
DGK  
D
8
8
8
8
8
8
8
8
8
75  
80  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
Green (RoHS  
& no Sb/Br)  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAUAGLevel-2-260C-1 YEAR  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU Level-1-260C-UNLIM  
CU NIPDAU N / A for Pkg Type  
80  
Green (RoHS  
& no Sb/Br)  
2500  
2500  
2500  
2500  
50  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
UCC38C45DRG4  
UCC38C45P  
SOIC  
D
Green (RoHS  
& no Sb/Br)  
PDIP  
P
Green (RoHS  
& no Sb/Br)  
UCC38C45PG4  
PDIP  
P
50  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU N / A for Pkg Type  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability  
information and additional product content details.  
TBD: The Pb-Free/Green conversion plan has not been defined.  
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that  
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.  
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between  
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.  
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight  
in homogeneous material)  
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.  
Addendum-Page 7  
PACKAGE OPTION ADDENDUM  
www.ti.com  
16-Aug-2012  
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information  
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and  
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.  
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.  
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.  
OTHER QUALIFIED VERSIONS OF UCC28C41, UCC28C43, UCC28C45 :  
Automotive: UCC28C41-Q1  
Enhanced Product: UCC28C43-EP, UCC28C45-EP  
NOTE: Qualified Version Definitions:  
Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects  
Enhanced Product - Supports Defense, Aerospace and Medical Applications  
Addendum-Page 8  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
16-Aug-2012  
TAPE AND REEL INFORMATION  
*All dimensions are nominal  
Device  
Package Package Pins  
Type Drawing  
SPQ  
Reel  
Reel  
A0  
B0  
K0  
P1  
W
Pin1  
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant  
(mm) W1 (mm)  
UCC28C40DGKR  
UCC28C40DR  
VSSOP  
SOIC  
DGK  
D
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
5.3  
6.4  
5.3  
6.4  
5.3  
6.4  
5.3  
6.4  
5.3  
6.4  
5.3  
6.4  
5.3  
6.4  
6.4  
5.3  
6.4  
5.3  
3.4  
5.2  
3.4  
5.2  
3.4  
5.2  
3.4  
5.2  
3.4  
5.2  
3.4  
5.2  
3.4  
5.2  
5.2  
3.4  
5.2  
3.4  
1.4  
2.1  
1.4  
2.1  
1.4  
2.1  
1.4  
2.1  
1.4  
2.1  
1.4  
2.1  
1.4  
2.1  
2.1  
1.4  
2.1  
1.4  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
UCC28C41DGKR  
UCC28C41DR  
VSSOP  
SOIC  
DGK  
D
UCC28C42DGKR  
UCC28C42DR  
VSSOP  
SOIC  
DGK  
D
UCC28C43DGKR  
UCC28C43DR  
VSSOP  
SOIC  
DGK  
D
UCC28C44DGKR  
UCC28C44DR  
VSSOP  
SOIC  
DGK  
D
UCC28C45DGKR  
UCC28C45DR  
VSSOP  
SOIC  
DGK  
D
UCC38C40DGKR  
UCC38C40DR  
VSSOP  
SOIC  
DGK  
D
UCC38C41DR  
SOIC  
D
UCC38C42DGKR  
UCC38C42DR  
VSSOP  
SOIC  
DGK  
D
UCC38C43DGKR  
VSSOP  
DGK  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
16-Aug-2012  
Device  
Package Package Pins  
Type Drawing  
SPQ  
Reel  
Reel  
A0  
B0  
K0  
P1  
W
Pin1  
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant  
(mm) W1 (mm)  
UCC38C43DR  
UCC38C44DGKR  
UCC38C44DR  
SOIC  
VSSOP  
SOIC  
D
DGK  
D
8
8
8
8
8
2500  
2500  
2500  
2500  
2500  
330.0  
330.0  
330.0  
330.0  
330.0  
12.4  
12.4  
12.4  
12.4  
12.4  
6.4  
5.3  
6.4  
5.3  
6.4  
5.2  
3.4  
5.2  
3.4  
5.2  
2.1  
1.4  
2.1  
1.4  
2.1  
8.0  
8.0  
8.0  
8.0  
8.0  
12.0  
12.0  
12.0  
12.0  
12.0  
Q1  
Q1  
Q1  
Q1  
Q1  
UCC38C45DGKR  
UCC38C45DR  
VSSOP  
SOIC  
DGK  
D
*All dimensions are nominal  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
UCC28C40DGKR  
UCC28C40DR  
VSSOP  
SOIC  
DGK  
D
8
8
8
8
8
8
8
8
8
8
8
8
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
366.0  
340.5  
367.0  
340.5  
367.0  
340.5  
367.0  
340.5  
366.0  
340.5  
366.0  
340.5  
364.0  
338.1  
367.0  
338.1  
367.0  
338.1  
367.0  
338.1  
364.0  
338.1  
364.0  
338.1  
50.0  
20.6  
35.0  
20.6  
35.0  
20.6  
35.0  
20.6  
50.0  
20.6  
50.0  
20.6  
UCC28C41DGKR  
UCC28C41DR  
VSSOP  
SOIC  
DGK  
D
UCC28C42DGKR  
UCC28C42DR  
VSSOP  
SOIC  
DGK  
D
UCC28C43DGKR  
UCC28C43DR  
VSSOP  
SOIC  
DGK  
D
UCC28C44DGKR  
UCC28C44DR  
VSSOP  
SOIC  
DGK  
D
UCC28C45DGKR  
UCC28C45DR  
VSSOP  
SOIC  
DGK  
D
Pack Materials-Page 2  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
16-Aug-2012  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
UCC38C40DGKR  
UCC38C40DR  
VSSOP  
SOIC  
DGK  
D
8
8
8
8
8
8
8
8
8
8
8
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
2500  
367.0  
340.5  
340.5  
367.0  
340.5  
367.0  
340.5  
367.0  
340.5  
367.0  
340.5  
367.0  
338.1  
338.1  
367.0  
338.1  
367.0  
338.1  
367.0  
338.1  
367.0  
338.1  
35.0  
20.6  
20.6  
35.0  
20.6  
35.0  
20.6  
35.0  
20.6  
35.0  
20.6  
UCC38C41DR  
SOIC  
D
UCC38C42DGKR  
UCC38C42DR  
VSSOP  
SOIC  
DGK  
D
UCC38C43DGKR  
UCC38C43DR  
VSSOP  
SOIC  
DGK  
D
UCC38C44DGKR  
UCC38C44DR  
VSSOP  
SOIC  
DGK  
D
UCC38C45DGKR  
UCC38C45DR  
VSSOP  
SOIC  
DGK  
D
Pack Materials-Page 3  
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Applications  
www.ti.com/audio  
amplifier.ti.com  
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www.dlp.com  
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DLP® Products  
DSP  
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Consumer Electronics  
Energy and Lighting  
Industrial  
www.ti.com/computers  
www.ti.com/consumer-apps  
www.ti.com/energy  
dsp.ti.com  
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www.ti.com/clocks  
interface.ti.com  
logic.ti.com  
www.ti.com/industrial  
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Medical  
Logic  
Security  
Power Mgmt  
Microcontrollers  
RFID  
power.ti.com  
Space, Avionics and Defense www.ti.com/space-avionics-defense  
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www.ti-rfid.com  
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e2e.ti.com  
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Copyright © 2012, Texas Instruments Incorporated  
配单直通车
UCC28C40DR产品参数
型号:UCC28C40DR
Brand Name:Texas Instruments
是否无铅: 不含铅
是否Rohs认证: 符合
生命周期:Active
IHS 制造商:TEXAS INSTRUMENTS INC
零件包装代码:SOIC
包装说明:SOP, SOP8,.25
针数:8
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
Factory Lead Time:8 weeks
风险等级:0.7
其他特性:ALSO OPERATES IN CURRENT MODE
模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION
最大输入电压:18 V
最小输入电压:12 V
标称输入电压:15 V
JESD-30 代码:R-PDSO-G8
JESD-609代码:e4
长度:4.9 mm
湿度敏感等级:1
功能数量:1
端子数量:8
最高工作温度:105 °C
最低工作温度:-40 °C
最大输出电流:1 A
封装主体材料:PLASTIC/EPOXY
封装代码:SOP
封装等效代码:SOP8,.25
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260
认证状态:Not Qualified
座面最大高度:1.58 mm
子类别:Switching Regulator or Controllers
表面贴装:YES
切换器配置:BUCK-BOOST
最大切换频率:1000 kHz
技术:BICMOS
温度等级:INDUSTRIAL
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING
端子节距:1.27 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.91 mm
Base Number Matches:1
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