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产品型号PTH04000WAH的概述

芯片PTH04000WAH的概述 PTH04000WAH是一款由德州仪器（Texas Instruments）公司生产的高效直流-直流转换器，属其PowerTAP系列。该芯片的设计目的在于满足各种电子设备中对高效能和高可靠性的电源管理需求，尤其适用于数字电源控制和基于微控制器的供电系统。PTH04000WAH特别适合于那些对空间和能量效率有严格要求的小型设备，例如嵌入式系统、通信设备及工业控制系统等。该芯片的输出电压范围可调，支持多种输入电压配置，使其能够适应不同应用环境中的电源需求。并且，由于其高谐波效率和热管理能力，PTH04000WAH在设备运行过程中能够有效降低功率损耗，延长系统的使用寿命。此外，该芯片的设计还具有较强的抗干扰能力，确保在复杂的电磁环境中稳定工作。芯片PTH04000WAH的详细参数 PTH04000WAH具备以下核心参数： - 输入电压范围：4.5 V至1...

产品型号PTH04000WAH的Datasheet PDF文件预览

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

3-A, 3.3/5-V INPUT, ADJUSTABLE SWITCHING REGULATOR

WITH AUTO-TRACK™ SEQUENCING

FEATURES

•

Surface Mount Package

•

Up to 3-A Output Current at 85°C

Safety Agency Approvals:

UL/CUL 60950, EN60950 VDE (Pending)

3.3-V / 5-V Input Voltage

•

Point-of-Load Alliance (POLA™) Compatible

Wide-Output Voltage Adjust

(0.9 V to 3.6 V)

APPLICATIONS

•

Efficiencies Up To 94%

On/Off Inhibit

•

Telecommunications, Instrumentation,

and General-Purpose Circuits

Undervoltage Lockout (UVLO)

Output Overcurrent Protection

(Nonlatching, Auto-Reset)

•

Overtemperature Protection

Ambient Temperature Range: –40°C to 85°C

DESCRIPTION

The PTH04000W is a highly integrated, low-cost switching regulator module that delivers up to 3 A of output

current. Occupying a small PCB area, the PTH04000W provides output current at a high efficiency and with

minimal power dissipation, thereby eliminating the need for a heat sink. Their small size (0.75 inch × 0.5 inch),

high efficiency, and low cost makes these modules practical for a variety of applications.

The input voltage range of the PTH04000W is from 3 V to 5.5 V, allowing operation from either a 3.3-V or 5-V

input bus. Using state-of-the-art switched-mode power-conversion technology, the PTH04000W can step down to

voltages as low as 0.9 V from a 5-V input bus, with typically less than 1 W of power dissipation. The output

voltage can be adjusted to any voltage over the range, 0.9 V to 3.6 V, using a single external resistor. This series

includes Auto-Track™ sequencing. This feature simplifies the task of supply voltage sequencing in a power

system by enabling modules to track each other, or any external voltage, during power up and power down.

Other operating features include an undervoltage lockout (UVLO), on/off inhibit, output overcurrent protection,

and overtemperature protection. Target applications include telecommunications, test and measurement

applications, and high-end consumer products. The modules are available in both through-hole and sur-

face-mount package options, including tape and reel. The PTH04000W is also compatible with TI's roadmap for

RoHS and lead-free compliance.

STANDARD APPLICATION

Track

PTH04000W

(Top View)

C *

47 µF

(Optional)

(Required)

Inhibit

SET

1%, 0.1 W

(Required)

GND

* See the Application Information section for capacitor recommendations.

# See the Application Information section for R values.

SET

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.

POLA, Auto-Track, TMS320 are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

These devices have limited built-in ESD protection. The leads should be shorted together or the device

placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

ORDERING INFORMATION

PTH04000W (Basic Model)

Output Voltage

Part Number

PTH04000WAH

PTH04000WAS⁽¹⁾

PTH04000WAZ⁽¹⁾

Description

Package Designator

Horizontal T/H - Pb-free

Horizontal SMD⁽²⁾

Horizontal SMD - Pb-free⁽³⁾

EUS

EUT

0.9 V - 3.6 V

(1) Add a T suffix for tape and reel option on SMD packages.

(2) S suffix versions have SnPb solder ball

(3) Z suffix versions have SnAgCu solder ball

ABSOLUTE MAXIMUM RATINGS

over operating free-air temperature range unless otherwise noted⁽¹⁾

PTH04000W

-40 to 85

260

UNIT

T_A

Operating free-air temperature

Lead temperature (H suffix)

Over V_Irange

°C

5 seconds

Solder reflow temperature (S suffix)

Solder reflow temperature (Z suffix)⁽²⁾

Storage temperature

Surface temperature of module body or pins

235

260⁽²⁾

T_stg

-40 to 125

(1) 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.

(2) Moisture Sensitivity Level (MSL) Rating Level-3-260C-168HR

RECOMMENDED OPERATING CONDITIONS

MIN

MAX

5.5

UNIT

V_I

Input voltage

T_A

Operating free-air temperature

-40

°C

PACKAGE SPECIFICATIONS

PTH04000Wx (Suffix AH, AS and AZ)

Weight

1.5 grams

Flammability

Meets UL 94 V-O

(1)

Mechanical shock

Mechanical vibration

Per Mil-STD-883D, Method 2002.3, 1 msec, ½ sine, mounted

Mil-STD-883D, Method 2007.2, 20-2000 Hz

500 G

(1)

20 G

(1) Qualification limit.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

ELECTRICAL CHARACTERISTICS

at 25°C free-air temperature, V_I= 5 V, V_O= 3.3 V, I_O= I_O(Max), C_I= 47 µF (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(1)

I_O

Output current

T_A= 25°C, natural convection

(2)

V_I

Input voltage range

Set-point voltage tolerance

Temperature variation

Line regulation

Over I_Orange

5.5

(3)

V_O(TOL)

T_A= 25°C

±2%

–40 ≤ T_A≤ 85°C

Over V_Irange

Over I_Orange

±0.5% V_O

±1

±5

Load regulation

Includes set-point, line, load,

–40 ≤ T_A≤ 85°C

(3)

Total output voltage variation

Output voltage adjust range

V_I≥ 4.5 V

0.9

3.6

V_O(ADJ)

V_I< 4.5 V

V_I– 1.1⁽²⁾

T_A= 25°C, I_O= 2 A

(2)

R_SET= 475 Ω, V_O= 3.3 V

R_SET= 2.32 kΩ, V_O= 2.5 V

92%

89%

86%

84%

82%

78%

Efficiency

R_SET= 6.65 kΩ, V_O= 1.8 V

R_SET= 11.5 kΩ, V_O= 1.5 V

R_SET= 26.1 kΩ, V_O= 1.2 V

R_SET= 84.5 kΩ, V_O= 1 V

Output voltage ripple

Overcurrent threshold

20 MHz bandwith

mV_PP

Reset, followed by autorecovery

1 A/µs load step from 50% to 100% I_Omax,

C_O= 47 µF

Transient response

Recovery time

V_Oover/undershoot

Pin to GND

µs

100

I_ILtrack

Track Input Current (pin 2)

Track Slew Rate Capability

–130

µA

dV_track/dt

C_O≤ C_O(max)

V/ms

V_I= increasing

2.95

2.8

UVLO

Undervoltage lockout

V_I= decreasing

2.7

V_I– 0.5

–0.2

(4)

Input high voltage (V_IH

Input low voltage (V_IL)

Input low current (I_IL)

)

Open

Inhibit control (pin 4)

0.6

µA

kHz

µF

I_{I (STBY)}

F_S

Input standby current

Switching frequency

Pins 4 and 2 connected, pin 2 open

Over V_Iand I_Oranges

700

(5)

External input capacitance

Ceramic type (C1)

(6)

Ceramic type (C2)

150

µF

(6)

(7)

External output capacitance

Calculated reliability

Nonceramic type (C3)

560

(8)

Equivalent series resistance (nonceramic)

mΩ

Per Telcordia SR-332, 50% stress,

T_A= 40°C, ground benign

10⁶Hr

MTBF

(1) See SOA temperature derating curves to identify maximum output current at higher ambient temperatures.

(2) The minimum input voltage is 3 V or (V_O+ 1.1) V, whichever is greater. A 5-V input bus is recommended for output voltages higher than

2 V.

(3) The set-point voltage tolerance is affected by the tolerance and stability of R_SET. The stated limit is unconditionally met if R_SEThas a

tolerance of 1% with 100 ppm/°C or better temperature stability.

(4) This control pin has an internal pullup to the input voltage V_I. An external pullup must not be used. If it is left open circuit, the module

operates when input power is applied. A small low-leakage (< 100 nA) MOS field effect transistor (MOSFET) is recommended for

control. See the application information for further guidance.

(5) An external 47-µF ceramic capacitor is required across the input (V_Iand GND) for proper operation. Locate the capacitor close to the

module.

(6) An external output capacitor is not required for basic operation. Additional capacitance at the load improves the transient response.

(7) This is the calculated maximum capacitance. The minimum ESR limitation often results in a lower value. See the capacitor application

information for further guidance.

(8) This is the minimum ESR for all the electrolytic (nonceramic) capacitance. Use 7 mΩ as the minimum when calculating the total

equivalent series resistance (ESR) using the max-ESR values specified by the capacitor manufacturer.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

PIN ASSIGNMENT

PTH04000W

(Top View)

TERMINAL FUNCTIONS

TERMINAL

I/O

DESCRIPTION

NAME

NO.

This is the common ground connection for the V_Iand V_Opower connections. It is also the 0 V_dc

reference for the Inhibit , the V_OAdjust, and the Track control inputs.

GND

This is an analog control input that enables the output voltage to follow an external voltage. This pin

becomes active typically 20 ms after the input voltage has been applied, and allows direct control of the

output voltage from 0 V up to the nominal set-point voltage. Within this range the output voltage follows

the voltage at the Track pin on a volt-for-volt basis. When the control voltage is raised above this range,

the module regulates at its set-point voltage. The feature allows the output voltage to rise

simultaneously with other modules powered from the same input bus. If unused, this input should be

connected to V_I.

Track

NOTE: Due to the undervoltage lockout feature, the output of the module cannot follow its own input

voltage during power up. For more information, see the related application report (SLTA054).

V_I

The positive input voltage power node to the module, which is referenced to common GND.

The Inhibit pin is an open-collector/drain-negative logic input that is referenced to GND. Applying a

low-level ground signal to this input disables the module's output. When the Inhibit control is active, the

input current drawn by the regulator is significantly reduced. If the Inhibit pin is left open-circuit, the

module produces an output voltage whenever a valid input source is applied.

Inhibit

A 1% resistor must be connected between this pin and GND (pin 1) to set the output voltage of the

module higher than 0.9 V. If left open-circuit, the output voltage defaults to this value. The temperature

stability of the resistor should be 100 ppm/°C (or better). The set-point range is from 0.9 V to 3.6 V. The

electrical specification table gives the standard resistor value for a number of common output voltages.

See the application information for further guidance.

V_OAdjust

V_O

The regulated positive power output with respect to the GND node.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

(1)(2)

TYPICAL CHARACTERISTICS (5-V INPUT)

EFFICIENCY

OUTPUT RIPPLE

OUTPUT CURRENT

100

= 2.5 V

= 3.3 V

= 1.5 V

= 1.8 V

= 3.3 V

= 1.2 V

= 1 V

0.5

1.5

2.5

0.5

1.5

2.5

- Output Current - A

Figure 1.

Figure 2.

POWER DISSIPATION

OUTPUT CURRENT

AMBIENT TEMPERATURE

OUTPUT CURRENT

1.2

Nat Conv

All V

Airflow:

0.8

= 2.5 V

0.6

0.4

0.2

= 1 V

0.5

1.5

2.5

0.5

1.5

2.5

- Output Current - A

Figure 3.

Figure 4.

(1) The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the

converter. Applies to Figure 1, Figure 2, and Figure 3.

(2) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer's maximum

operating temperatures. Derating limits apply to modules soldered directly to a 100 mm x 100 mm double-sided PCB with 2 oz. copper.

Applies to Figure 4.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

(1)(2)

TYPICAL CHARACTERISTICS (3.3-V INPUT)

EFFICIENCY

OUTPUT CURRENT

OUTPUT RIPPLE

OUTPUT CURRENT

100

= 2 V

= 1.8 V

= 1.5 V

= 1.8 V

= 1.2 V

= 1 V

= 1.2 V

= 0.9 V

0.5

1.5

2.5

0.5

1.5

2.5

- Output Current - A

Figure 5.

Figure 6.

POWER DISSIPATION

OUTPUT CURRENT

AMBIENT TEMPERATURE

OUTPUT CURRENT

1.2

Nat Conv

All V

Airflow:

0.8

0.6

0.4

0.2

= 1.8 V

= 0.9 V

0.5

1.5

2.5

0.5

1.5

2.5

- Output Current - A

Figure 7.

Figure 8.

(1) The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the

converter. Applies to Figure 5, Figure 6, and Figure 7.

(2) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer's maximum

operating temperatures. Derating limits apply to modules soldered directly to a 100 mm x 100 mm double-sided PCB with 2 oz. copper.

Applies to Figure 8.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

APPLICATION INFORMATION

Adjusting the Output Voltage of the PTH04000W Wide-Output Adjust Power Modules

The V_OAdjust control (pin 5) sets the output voltage of the PTH04000W product. The adjustment range is from

0.9 V to 3.6 V. The adjustment method requires the addition of a single external resistor, R_SET, that must be

connected directly between the V_OAdjust and GND pin 1. Table 1 gives the standard external resistor for a

number of common bus voltages, along with the actual voltage the resistance produces.

For other output voltages, the value of the required resistor can either be calculated using the following formula,

or simply selected from the range of values given in Table 2. Figure 9 shows the placement of the required

resistor.

0.891 V

- 3.24 kW

= 10 kW x

SET

V - 0.9 V

Table 1. Standard Values of R_setfor Common Output

Voltages

V_O

R_SET

V_O

(Required)

(Standard Value)

(Actual)

(1)

3.3 V

475 Ω

2.32 kΩ

4.87 kΩ

6.65 kΩ

11.5 kΩ

26.1 kΩ

84.5 kΩ

Open

3.298 V

2.502 V

1.999 V

1.801 V

1.504 V

1.204 V

1.001 V

0.9 V

(1)

2.5 V

2 V

1.8 V

1.5 V

1.2 V

1 V

0.9 V

(1) The minimum input voltage is 3 V or (V_O+ 1.1) V, whichever is

greater.

Track

PTH04000W

Adj

Inhibit

GND

SET

0.05 W

47 µF

(Required)

47 µF

(Optional)

GND

(1) A 0.05-W rated resistor may be used. The tolerance should be 1%, with a temperature stability of 100 ppm/°C (or

better). Place the resistor as close to the regulator as possible. Connect the resistor directly between pins 5 and 1

using dedicated PCB traces.

(2) Never connect capacitors from V_OAdjust to either GND or V_O. Any capacitance added to the V_OAdjust pin affects the

stability of the regulator.

Figure 9. V_OAdjust Resistor Placement

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

Table 2. Calculated Set-Point Resistor Values

V_ORequired

0.900

0.925

0.950

0.975

1.000

1.025

1.050

1.075

1.100

1.125

1.150

1.175

1.200

1.225

1.250

1.275

1.300

1.325

1.350

1.375

1.400

1.425

1.450

R_SET

V_ORequired

1.475

1.50

R_SET

V_ORequired

2.55

2.60

2.65

2.70

2.75

2.80

2.85

2.90

2.95

3.00

3.05

3.10

3.15

3.20

3.25

3.30

3.35

3.40

3.45

3.50

3.55

3.60

R_SET

2.16 kΩ

2.00 kΩ

1.85 kΩ

1.71 kΩ

1.58 kΩ

1.45 kΩ

1.33 kΩ

1.22 kΩ

1.11 kΩ

1.00 kΩ

904 Ω

Open

12.3 kΩ

11.6 kΩ

10.5 kΩ

9.49 kΩ

8.64 kΩ

7.90 kΩ

7.24 kΩ

6.66 kΩ

6.14 kΩ

5.67 kΩ

5.25 kΩ

4.86 kΩ

4.51 kΩ

4.19 kΩ

3.89 kΩ

3.61 kΩ

3.36 kΩ

3.12 kΩ

2.90 kΩ

2.70 kΩ

2.51 kΩ

2.33 kΩ

353 kΩ

175 kΩ

116 kΩ

85.9 kΩ

68.0 kΩ

56.2 kΩ

47.7 kΩ

41.3 kΩ

36.4 kΩ

32.4 kΩ

29.2 kΩ

26.5 kΩ

24.2 kΩ

22.2 kΩ

20.5 kΩ

19.0 kΩ

17.7 kΩ

16.6 kΩ

15.5 kΩ

14.6 kΩ

13.7 kΩ

13.0 kΩ

1.55

1.60

1.65

1.70

1.75

1.80

1.85

1.90

1.95

2.00

810 Ω

2.05

720 Ω

2.10

634 Ω

2.15

551 Ω

2.20

473 Ω

2.25

397 Ω

2.30

324 Ω

2.35

254 Ω

2.40

187 Ω

2.45

122 Ω

2.50

60 Ω

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

CAPACITOR RECOMMENDATIONS for the PTH04000W WIDE-OUTPUT

ADJUST POWER MODULES

Input Capacitor

The minimum required input capacitor(s) is 47-µF of ceramic capacitance, in either an X5R or X7R temperature

tolerance. The ceramic capacitors should be located within 0.5 inch (1,27 cm) of the regulator's input pins.

Electrolytic capacitors can also be used at the input, but only in addition to the required ceramic capacitance.

The minimum ripple current rating for nonceramic capacitors should be at least 200 mA rms. The ripple current

rating of electrolytic capacitors is a major consideration when they are used at the input.

When specifying regular tantalum capacitors for use at the input, a minimum voltage rating of 2 × (maximum dc

voltage + ac ripple) is highly recommended. This is standard practice to ensure reliability. Polymer-tantalum

capacitors are not affected by this requirement.

For improved ripple reduction on the input bus, additional ceramic capacitors can be used to complement the

minimum requirement.

Output Capacitors (Optional)

For applications with load transients (sudden changes in load current), the regulator response benefits from

additional external output capacitance. The recommended output capacitance of 47 µF allows the module to

meet its transient response specification. A high-quality computer-grade electrolytic capacitor should be

adequate.

Electrolytic capacitors should be located close to the load circuit. These capacitors provide decoupling over the

frequency range, 2 kHz to 150 kHz. Aluminum electrolytic capacitors are suitable for ambient temperatures

above 0°C. For operation below 0°C, tantalum or Os-Con-type capacitors are recommended. When using one or

more nonceramic capacitors, the calculated equivalent ESR should be no lower than 4 mΩ (7 mΩ using the

manufacturer's maximum ESR for a single capacitor). A list of preferred low-ESR type capacitors are identified in

Table 3.

Ceramic Capacitors

Above 150 kHz the performance of aluminum electrolytic capacitors becomes less effective. To further improve

the reflected input ripple current, or the output transient response, multilayer ceramic capacitors must be added.

Ceramic capacitors have low ESR and their resonant frequency is higher than the bandwidth of the regulator.

When placed at the output, their combined ESR is not critical as long as the total value of ceramic capacitance

does not exceed 150 µF. Also, to prevent the formation of local resonances, do not exceed the maximum

number of capacitors specified in the capacitor table.

Tantalum Capacitors

Additional tantalum type capacitors can be used at both the input and output, and are recommended for

applications where the ambient operating temperature can be less than 0°C. The AVX TPS, Sprague

593D/594/595, and Kemet T495/T510/T520 capacitors series are suggested over many other tantalum types due

to their rated surge, power dissipation, and ripple current capability. As a caution, many general-purpose

tantalum capacitors have considerably higher ESR and lower ripple current capability. These capacitors are also

less reliable as they have lower power dissipation capability and surge current ratings. Tantalum capacitors that

do not have a stated ESR or surge current rating are not recommended for power applications. When specifying

Os-Con and polymer-tantalum capacitors for the output, the minimum ESR limit is encountered well before the

maximum capacitance value is reached.

Capacitor Table

The capacitor table, Table 3, identifies the characteristics of capacitors from a number of vendors with

acceptable ESR and ripple current (rms) ratings. The recommended number of capacitors required at both the

input and output buses is identified for each capacitor type. This is not an extensive capacitor list. Capacitors

from other vendors are available with comparable specifications. Those listed are for guidance. The rms rating

and ESR (at 100 kHz) are critical parameters necessary to insure both optimum regulator performance and long

capacitor life.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

Designing for Load Transients

The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of 1

A/µs. The typical voltage deviation for this load transient is given in the data sheet specification table using the

optional value of output capacitance. As the di/dt of a transient is increased, the response of a converter's

regulation circuit ultimately depends on its output capacitor decoupling network. This is an inherent limitation with

any dc/dc converter once the speed of the transient exceeds its bandwidth capability. If the target application

specifies a higher di/dt or lower voltage deviation, the requirement can only be met with additional output

capacitor decoupling. In these cases, special attention must be paid to the type, value, and ESR of the

capacitors selected.

If the transient performance requirements exceed those specified in the data sheet, the selection of output

capacitors becomes more important. Review the minimum ESR in the characteristic data sheet for details on the

capacitance maximum.

(1)

Table 3. Recommended Input/Output Capacitors

CAPACITOR CHARACTERISTICS

QUANTITY

85°C

EQUIVALENT

CAPACITOR VENDOR/

COMPONENT

SERIES

VENDOR

NUMBER

MAXIMUM

PHYSICAL

SIZE

(mm)

WORKING

VOLTAGE

VALUE

µF

SERIES

RESISTANCE

(ESR)

INPUT OUTPUT

RIPPLE

CURRENT

BUS⁽²⁾

BUS

(I_rms

)

Panasonic WA (SMT)

FC (SMT)

10 V

25 V

120

0.035 Ω

0.400 Ω

2800 mA

230 mA

8 × 6,9

8 × 6,2

≤ 4⁽²⁾

1⁽²⁾

EEFWA1A121P⁽³⁾

EEVFC1E470P⁽³⁾

6.3 V

0.018 Ω

0.009 Ω

2500 mA

3000 mA

7,3 × 4,3

≤ 2

≤ 1

EEFCD0J470R

EEFSL0J560R

Panasonic SL SP-cap(SMT)

United Chemi-con PXA (SMT)

LXZ

MVZ (SMT)

10 V

16 V

0.031 Ω

0.040 Ω

0.250 Ω

0.440 Ω

2250 mA

2100 mA

290 mA

230 mA

6,3 × 5,7

6,3 × 9,8

6,3 × 11,5

6,3 × 5,7

≤ 3

PXA10VC470MF60TP

10FS100M

LXZ16VB101M6X11LL

MVZ16VC101MF60TP

100

Nichicon UWG (SMT)

F559(Tantalum)

16 V

10 V

100

0.400 Ω

0.055 Ω

0.550 Ω

230 mA

2000 mA

210 mA

8 × 6,2

7,7 × 4,3

6 × 11

≤ 3

UWG1C101MCR1GS

F551A107MN

UPM1A101MEH

Sanyo Os-con\ POS-Cap SVP

(SMT)

10 V

6.3 V

10 V

0.025 Ω

0.074 Ω

0.045 Ω

2400 mA

1110 mA

1710 mA

7,3 × 4,3

5 × 6

6,3 × 5

≤ 3

10TPE68M

6SVP47M

10SP56M

10 V

0.100 Ω

0.060 Ω

1100 mA

> 412 mA

7,3 L × 4,3

W × 4,1 H

≤ 3

≤ 53

TPSD476M010R0100

TPSB476M010R0500

AVX Tantalum TPS (SMD)

Kemet T520 (SMD)

AO-CAP

10 V

6.3 V

0.060 Ω

0.028 Ω

>1200 mA

>1100 mA

7,3 L × 5,7

W × 4 H

≤ 3

T520V686M010ASE060

A700V476M006AT

Vishay/Sprague 594D/595D

(SMD)

10 V

0.100 Ω

0.240 Ω

>1000 mA

680 mA

7,3 L × 6 W

× 4,1 H

≤ 3

594D686X0010C2T

595D686X0010C2T

94SL

16 V

10 V

0.070 Ω

0.005 Ω

1550 mA

8 × 5

≤ 3

≤ 2

94SL476X0016EBP

FK22X5R1A476M

7,5 L × 4,0

W × 8,0 H

TDK Ceramic X5R (Leaded)

>1400 mA

≥ 1

TDK Ceramic X5R

Murata Ceramic X5R

Kemet

6.3 V

0.002 Ω

>1400 mA

>1000 mA

1210 case

3225 mm

≥ 2⁽⁴⁾

≤ 3

C3225X5R0J226KT/MTGR

M32ER61J223M

C1210C226K9PAC

TDK Ceramic X5R

Murata Ceramic X5R

Kemet

6.3 V

0.002 Ω

>1400 mA

>1000 mA

1210 case

3225 mm

≥ 1

≤ 2

C3225X5R0J476KT/MT

GRM32ER60J476M/6.3

C1210C476K9PAC

(1) Check with capacitor manufacturers for availability and lead-free status.

(2) A ceramic capacitor is required on the input. An electrolytic capacitor can be added to the output for improved transient response.

(3) An optional through-hole capacitor available.

(4) A total capacitance of 44 µF is an acceptable replacement for a single 47-µF capacitor.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

Features of the PTH/PTV Family of Nonisolated, Wide-Output Adjust Power Modules

POLA™ Compatibility

The PTH/PTV family of nonisolated, wide-output adjustable power modules from Texas Instruments are

optimized for applications that require a flexible, high-performance module that is small in size. Each of these

products are POLA™ compatible. POLA-compatible products are produced by a number of manufacturers, and

offer customers advanced, nonisolated modules with the same footprint and form factor. POLA parts are also

ensured to be interoperable, thereby providing customers with true second-source availability.

Soft-Start Power Up

The Auto-Track feature allows the power up of multiple PTH/PTV modules to be directly controlled from the

Track pin. However, in a stand-alone configuration, or when the Auto-Track feature is not being used, the Track

pin should be directly connected to the input voltage, V_I(see Figure 10).

Track

Adj

= 2.5 V

V = 5 V

PTH04000W

Inhibit

GND

47 µF

(Required)

47 µF

(Optional)

2.33 kW

0.05 W, 1%

GND

Figure 10. Power-Up Application Circuit

When the Track pin is connected to the input voltage, the Auto-Track function is permanently disengaged. This

allows the module to power up entirely under the control of its internal soft-start circuitry. When power up is

under soft-start control, the output voltage rises to the set-point at a quicker and more linear rate.

V (1 V/div)

(1 V/div)

I (1 A/div)

t - Time = 10 ms/div

Figure 11. Power-Up Waveform

From the moment a valid input voltage is applied, the soft-start control introduces a short time delay (typically

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

less than 5 ms) before allowing the output voltage to rise. The output then progressively rises to the module

set-point voltage. Figure 11 shows the soft-start power-up characteristic of the PTH04000W, operating from a

5-V input bus and configured for a 2.5-V output. The waveforms were measured with a 3-A resistive load and the

Auto-Track feature disabled. The initial rise in input current when the input voltage first starts to rise is the charge

current drawn by the input capacitors. Power up is complete within 25 ms.

Current Limit Protection

The PTH04000W modules protect against load faults with a continuous current limit characteristic. Under a load

fault condition, the output current cannot exceed the current limit value. Attempting to draw current that exceeds

the current limit value causes the output voltage to be progressively reduced. Current is continuously supplied to

the fault until it is removed. On removal of the fault, the output voltage promptly recovers.

Thermal Shutdown

Thermal shutdown protects the module internal circuitry against excessively high temperatures. A rise in

temperature may be the result of a drop in airflow, a high ambient temperature, or a sustained current limit

condition. If the junction temperature of the internal components exceeds 150°C, the module shuts down. This

reduces the output voltage to zero. The module starts up automatically, by initiating a soft-start power up when

the sensed temperature decreases 10°C below the thermal shutdown trip point.

Output On/Off Inhibit

For applications requiring output voltage on/off control, the PTH04000W power module incorporates an output

on/off Inhibit control (pin 4). The inhibit feature can be used wherever there is a requirement for the output

voltage from the regulator to be turned off.

The power module functions normally when the Inhibit pin is left open-circuit, providing a regulated output

whenever a valid source voltage is connected to Vin with respect to GND.

Figure 12 shows the typical application of the inhibit function. Note the discrete transistor (Q1). The Inhibit control

has its own internal pullup to V_Ipotential. An open-collector or open-drain device is recommended to control this

input.

Turning Q1 on applies a low voltage to the Inhibit control pin and disables the output of the module. If Q1 is then

turned off, the module executes a soft-start power-up sequence. A regulated output voltage is produced within

20 ms. Figure 13 shows the typical rise in the output voltage, following the turn off of Q1. The turn off of Q1

corresponds to the rise in the waveform, V_(INH). The waveforms were measured with a 2-A resistive load.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

Adj

Track

V = 5 V

= 1.8 V

PTH04000W

Inhibit

GND

47 µF

(Required)

(Optional)

SET

6.65 kÙ

0.05 W, 1%

BSS138

Inhibit

GND

Figure 12. On/Off Inhibit Control Circuit

(1 V/div)

I (500 mA/div)

(10 V/div)

(INH)

t - Time = 10 ms/div

Figure 13. Power Up Response From Inhibit Control

Auto-Track™ Function

The Auto-Track function is unique to the PTH/PTV family, and is available with all POLA products. Auto-Track

was designed to simplify the amount of circuitry required to make the output voltage from each module power up

and power down in sequence. The sequencing of two or more supply voltages during power up is a common

requirement for complex mixed-signal applications that use dual-voltage VLSI ICs such as the TMS320™ DSP

family, microprocessors, and ASICs.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

How Auto-Track™ Works

(1)

Auto-Track works by forcing the module output voltage to follow a voltage presented at the Track control pin

This control range is limited to between 0 V and the module set-point voltage. Once the track-pin voltage is

raised above the set-point voltage, the module output remains at its set-point ⁽²⁾. As an example, if the Track pin

of a 2.5-V regulator is at 1 V, the regulated output is 1 V. If the voltage at the Track pin rises to 3 V, the regulated

output does not go higher than 2.5 V.

Under Auto-Track control, the regulated output from the module follows the voltage at its Track pin on a

volt-for-volt basis. By connecting the Track pin of a number of these modules together, the output voltages follow

a common signal during power up and power down. The control signal can be an externally generated master

ramp waveform, or the output voltage from another power supply circuit ⁽³⁾. For convenience, the Track input

incorporates an internal RC-charge circuit. This operates off the module input voltage to produce a suitable rising

waveform at power up.

Track

V Adj

V 1 = 3.3 V

5 V

PTH04000W

Inhibit

GND

0 V

475 W

TPS3808G50*

Track

V Adj

V 2 = 1.8 V

SENSE

PTH05050W

RESET

Inhibit

GND

0.1 µF

4700 pF

5.49 kW

*Use TPS3808G33 with 3.3-V input modules.

Figure 14. Auto-Track Circuit

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

(TRK)

(1 V/div)

(TRK)

(1 V/div)

V 1 (1 V/div)

V 2 (1 V/div)

t - Time = 400 ms/div

t - Time = 10 ms/div

Figure 16. Simultaneous Power-Down With

Auto-Track Control

Figure 15. Simultaneous Power-Up With

Auto-Track Control

Typical Application

The basic implementation of Auto-Track allows for simultaneous voltage sequencing of a number of Auto-Track

compliant modules. Connecting the Track inputs of two or more modules forces their track input to follow the

same collective RC-ramp waveform, and allows their power-up sequence to be coordinated from a common track

control signal. This can be an open-collector (or open drain) device, such as a power-up reset voltage supervisor

IC. See U3 in Figure 14.

To coordinate a power-up sequence, the Track control must first be pulled to ground potential. This should be

done at or before input power is applied to the modules. The ground signal should be maintained for at least

20 ms after input power has been applied. This brief period gives the modules time to complete their internal

soft-start initialization ⁽⁴⁾, enabling them to produce an output voltage. A low-cost supply voltage supervisor IC,

that includes a built-in time delay, is an ideal component for automatically controlling the track inputs at power

up.

Figure 14 shows how the TPS3808G50 supply voltage supervisor IC (U3) can be used to coordinate the

sequenced power-up of two 5-V input Auto-Track modules. The output of the TPS3808G50 supervisor becomes

active above an input voltage of 0.8 V, enabling it to assert a ground signal to the common track control well

before the input voltage has reached the module's undervoltage lockout threshold. The ground signal is

maintained until approximately 27 ms after the input voltage has risen above U3's voltage threshold, which is

4.65 V. The 27-ms time period is controlled by the capacitor C3. The value of 4700 pF provides sufficient time

delay for the modules to complete their internal soft-start initialization. The output voltage of each module

remains at zero until the track control voltage is allowed to rise. When U3 removes the ground signal, the track

control voltage automatically rises. This causes the output voltage of each module to rise simultaneously with the

other modules, until each reaches its respective set-point voltage.

Figure 15 shows the output voltage waveforms from the circuit of Figure 14 after input voltage is applied to the

circuit. The waveforms, V_O1 and V_O2 represent the output voltages from the two power modules, U1 (3.3 V) and

U2 (1.8 V), respectively. V_O1 and V_O2 are shown rising together to produce the desired simultaneous power-up

characteristic.

The same circuit also provides a power-down sequence. When the input voltage falls below U3's voltage

threshold, the ground signal is reapplied to the common track control. This pulls the track inputs to zero volts,

forcing the output of each module to follow. See Figure 16. Power-down is normally complete before the input

voltage has fallen below the modules' undervoltage lockout. This is an important constraint. Once the modules

recognize that an input voltage is no longer present, their outputs can no longer follow the voltage applied at their

track input. During a power-down sequence, the fall in the output voltage from the modules is limited by the

Auto-Track slew rate capability.

PTH04000W

www.ti.com

SLTS247A–JUNE 2005–REVISED JULY 2005

Notes on Use of Auto-Track™

1. The Auto-Track function tracks almost any voltage ramp during power up, and is compatible with ramp

speeds of up to 1 V/ms.

2. The Track pin voltage must be allowed to rise above the module set-point voltage before the module

regulates at its adjusted set-point voltage.

3. The absolute maximum voltage that may be applied to the Track pin is the input voltage V_I.

4. The module cannot follow a voltage at its track control input until it has completed its soft-start initialization.

This takes about 20 ms from the time that a valid voltage has been applied to its input. During this period, it

is recommended that the Track pin be held at ground potential.

5. The Auto-Track function is disabled by connecting the Track pin to the input voltage (V_I). When Auto-Track is

disabled, the output voltage rises at a quicker and more linear rate after input power has been applied.

PACKAGE OPTION ADDENDUM

www.ti.com

19-Aug-2005

PACKAGING INFORMATION

Orderable Device

PTH04000WAH

PTH04000WAS

PTH04000WAST

PTH04000WAZ

PTH04000WAZT

Status ⁽¹⁾

ACTIVE

Package Package

Pins Package Eco Plan ⁽²⁾Lead/Ball Finish MSL Peak Temp ⁽³⁾

Qty

Type

Drawing

DIP MOD

ULE

EUS

TBD

Call TI

Level-1-235C-UNLIM

Call TI

DIP MOD

ULE

EUT

DIP MOD

ULE

250

DIP MOD

ULE

DIP MOD

ULE

250

Call TI

⁽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) 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.

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.

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.

Addendum-Page 1

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,

enhancements, improvements, and other changes to its products and services at any time and to discontinue

any product or service without notice. Customers should obtain the latest relevant information before placing

orders and should verify that such information is current and complete. All products are sold subject to TI’s terms

and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in

accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI

deems necessary to support this warranty. Except where mandated by government requirements, testing of all

parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for

their products and applications using TI components. To minimize the risks associated with customer products

and applications, customers should provide adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,

in which TI products or services are used. Information published by TI regarding third-party products or services

does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.

Use of such information may require a license from a third party under the patents or other intellectual property

of the third party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of information in TI data books or data sheets is permissible only if reproduction is without

alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction

of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for

such altered documentation.

Resale of TI products or services with statements different from or beyond the parameters stated by TI for that

product or service voids all express and any implied warranties for the associated TI product or service and

is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.

Following are URLs where you can obtain information on other Texas Instruments products and application

solutions:

Products

Applications

Audio

Amplifiers

amplifier.ti.com

www.ti.com/audio

Data Converters

dataconverter.ti.com

Automotive

www.ti.com/automotive

DSP

dsp.ti.com

Broadband

Digital Control

Military

www.ti.com/broadband

www.ti.com/digitalcontrol

www.ti.com/military

Interface

Logic

interface.ti.com

logic.ti.com

Power Mgmt

Microcontrollers

power.ti.com

Optical Networking

Security

www.ti.com/opticalnetwork

www.ti.com/security

www.ti.com/telephony

www.ti.com/video

microcontroller.ti.com

Telephony

Video & Imaging

Wireless

www.ti.com/wireless

Mailing Address:

Texas Instruments

Post Office Box 655303 Dallas, Texas 75265

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PTH04000WAH产品参数

型号:	PTH04000WAH
Brand Name：	Texas Instruments
是否无铅：	不含铅
是否Rohs认证：	不符合
生命周期：	Active
零件包装代码：	DIP
包装说明：	DMA,
针数：	6
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8504.40.85.00
Factory Lead Time：	1 week
风险等级：	1.13
Samacsys Confidence：	4
Samacsys Status：	Released
Samacsys PartID：	415710
Samacsys Pin Count：	6
Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Other
Samacsys Footprint Name：	EUS(R-PDSS-T6)
Samacsys Released Date：	2016-11-18 23:20:50
Is Samacsys：	N
其他特性：	REMOTE SHUTDOWN
模拟集成电路 - 其他类型：	DC-DC REGULATED POWER SUPPLY MODULE
认证：	UL, CSA
控制模式：	VOLTAGE-MODE
效率（主输出）：	92%
高度：	8.5 mm
最大输入电压：	5.5 V
最小输入电压：	3 V
标称输入电压：	3.3 V
JESD-30 代码：	R-XDMA-P6
JESD-609代码：	e3
长度：	18.92 mm
最大电网调整率：	0.03%
最大负载调整率：	0.15%
功能数量：	1
输出次数：	1
端子数量：	6
最高工作温度：	85 °C
最低工作温度：	-40 °C
最大输出电流：	3 A
最大输出电压：	3.6 V
最小输出电压：	0.9 V
标称输出电压：	3.3 V
封装主体材料：	UNSPECIFIED
封装代码：	DMA
封装形状：	RECTANGULAR
封装形式：	MICROELECTRONIC ASSEMBLY
峰值回流温度（摄氏度）：	NOT SPECIFIED
保护：	OUTPUT OVER CURRENT;THERMAL
认证状态：	Not Qualified
纹波电压（主输出）：	0.00353 Vrms
子类别：	Power Supply Modules
表面贴装：	NO
技术：	HYBRID
温度等级：	INDUSTRIAL
端子面层：	Tin (Sn)
端子形式：	PIN/PEG
端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED
最大总功率输出：	9.9 W
微调/可调输出：	YES
宽度：	12.57 mm
Base Number Matches：	1

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