UC2843AQD8原理图各脚功能电路原理芯片引脚定义引脚图及功能-中国IC网-芯三七

当前位置：IC37首页_>U字母起始型号索引_>U字母起始型号索引第147页更新时间：2024-12-04 17:41:13

产品型号UC2843AQD8的概述

UC2843AQD8芯片概述 UC2843AQD8 是一款广泛应用于开关电源控制的集成电路，其主要作用是实现电压和电流的控制，以确保电源的稳定性和高效性。该芯片采用双通道反馈机制，允许用户精确调整输出电压，并能够在多种工作环境下保持良好的性能。这使得UC2843AQD8在电源管理领域得到了广泛应用，特别是在需要高效、低成本解决方案的场合。 UC2843AQD8的详细参数 UC2843AQD8的技术规格包括以下几个方面： - 输入电压范围：通常介于8V至40V之间，适应不同电源输入条件。 - 输出电压调节范围：0V至一定设定值，具体视外部电路设计而定。 - 输出电流能力：最大可达1A，符合大多数开关电源的设计需求。 - 工作温度范围：-40℃至+85℃，适合广泛的工作环境。 - 频率范围：操作频率为100kHz至1MHz，提供了灵活的设计选择。 - 封装形式：采用DIP-8封装形式，便于...

产品型号UC2843AQD8的Datasheet PDF文件预览

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

D 8-PIN PACKAGE

(TOP VIEW)

Extended Temperature Performance of

–40°C to 125°C

Optimized for Off-line and DC to DC

Converters

COMP

REF

Low Start Up Current (<0.5 mA)

Trimmed Oscillator Discharge Current

Automatic Feed Forward Compensation

Pulse-by-Pulse Current Limiting

Enhanced Load Response Characteristics

Under-Voltage Lockout With Hysteresis

Double Pulse Suppression

OUTPUT

GND

SENSE

R /C

D 14-PIN PACKAGE

(TOP VIEW)

COMP

REF

High Current Totem Pole Output

Internally Trimmed Bandgap Reference

500 kHz Operation

OUTPUT

GND

SENSE

Low R Error Amp

R /C

PWR GND

description

The UC2842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC2842/3/4/5

family. Providing the necessary features to control current mode switched mode power supplies, this family has the

following improved features. Start up current is guaranteed to be less than 0.5 mA. Oscillator discharge is trimmed

to 8.3 mA. During under voltage lockout, the output stage can sink at least 10 mA at less than 1.2 V for V

5 V.

over

The difference between members of this family are shown in the table below.

PART NUMBER

UC2842A

UVLO ON

16 V

UVLO OFF

10 V

MAXIMUM DUTY CYCLE

<100%

<50%

UC2843A

8.5 V

7.9 V

UC2844A

16 V

10 V

UC2845A

8.5 V

7.9 V

<50%

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.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

†

ORDERING INFORMATION

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

‡

PACKAGE

SOIC-8 – D8

SOIC-14 – D

SOIC-8 – D8

SOIC-14 – D

SOIC-8 – D8

SOIC-14 – D

SOIC-8 – D8

SOIC-14 – D

Tape and reel

Tube

UC2842AQD8R

UC2842AQD8

UC2842AQDR

UC2842AQD

2842AQ

2843AQ

2844AQ

2845AQ

Tape and reel

Tube

Tape and reel

Tube

UC2843AQD8R

UC2843AQD8

UC2843AQDR

UC2843AQD

Tape and reel

Tube

–40°C to 125°C

Tape and reel

Tube

UC2844AQD8R

UC2844AQD8

UC2844AQDR

UC2844AQD

Tape and reel

Tube

Tape and reel

Tube

UC2845AQD8R

UC2845AQD8

UC2845AQDR

UC2845AQD

Tape and reel

Tube

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines

are available at www.ti.com/sc/package.

block diagram

NOTES: 1. A = DIL-8 Pin Number. B = SO-14 Pin Number.

2. Toggle flip flop used only in 2844A and 2845A.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

Ordering Information

UC 284

TAPE and REEL INDICATOR

PACKAGE

= Plastic SOIC, 14 pin

D8 = Plastic SOIC, 8 pin

AUTOMOTIVE TEMPERATURE RANGE INDICATOR

IMPROVED PERFORMANCE INDICATOR

PRODUCT OPTION

2 through 5

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

†‡

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

voltage (low impedance source) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V

voltage (I

mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . self limiting

Output current, I

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1 A

Output energy (capacitive load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 µJ

Analog Inputs (pins 3, 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6.3 V

Error Amp Output Sink current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA

Power Dissipation at T < +25_C (D package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W

Package thermal impedance, θ (see Note 1): D (8-pin) package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W

Storage temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65_C to 150_C

stg

Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . 260_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.

Unless otherwise indicated, voltages are reference to ground and currents are positive into and negative out of the specified terminals.

NOTE 1: Long term high–temperature storage and/or extended use at maximum recommended operating conditions may result in a reduction of

overall device life. See http://www.ti.com/ep_quality for additional information on enhanced plastic packaging.

electrical characteristics, T = –40_C to 125_C, V

= 15 V (see Note 1), R = 10 kΩ, C = 3.3 nF, and

T T

T = T (unless otherwise stated)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNITS

Reference Section

Output voltage

4.95

5.0

5.05

T = 25_C,

= 1 mA

Line regulation voltage

Load regulation voltage

Temperature stability

Total output variation voltage

= 12 V to 25 V

= 1 mA to 20 mA

See Notes 2 and 3

Line, Load, Temp.

0.2

0.4 mV/_C

5.1

4.9

f = 10 Hz to 10 kHz,

See Note 2

Output noise voltage

T = 25_C

µV

Long term stability

Output short-circuit current

Oscillator Section

Initial accuracy

1000 hours,

See Note 2

= 125_C

–30

–100

–180

See Note 4

T = 25_C

0.2

kHz

Voltage stability

= 12 V to 25 V

= MIN to MAX, See Note 2

Temperature stability

Amplitude peak-to-peak

V pin 7,

See Note 2

1.7

8.3

T = 25_C

7.8

7.5

8.8

Discharge current

V pin 7 = 2 V,

See Note 5

T = Full range

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

electrical characteristics, T = –40_C to 125_C, V

= 15 V (see Note 1), R = 10 kΩ, C = 3.3 nF, and

T = T (unless otherwise stated)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNITS

Error Amplifier Section

Input voltage

COMP = 2.5 V

2.45

2.5

–0.3

2.55

µA

MHz

Input bias current

Open loop voltage gain (A

Unity gain bandwidth

PSRR

–1

= 2 V to 4 V

0.7

VOL)

See Note 2

= 12 V to 25 V

T = 25_C

Output sink current

Output source current

FB = 2.7 V,

FB = 2.3 V,

FB = 2.7 V,

COMP = 1.1 V

COMP = 5 V

–0.5

–0.8

high

low

= 15 kΩ to GND

OUT

= 15 kΩ to V

0.7

1.1

OUT

REF

Current Sense Section

Gain

See Notes 6 and 7

COMP = 5 V,

2.85

0.9

3.15

1.1

V/V

Maximum input signal

PSRR

See Note 6

= 12 V to 25 V,See Note 6

–2

150

µA

Input bias current

Delay to output

Output Section (OUT)

–10

= 0 V to 2 V,

See Note 2

300

SENSE

= 20 mA

0.1

0.4

2.2

OUT

Low-level output voltage

High-level output voltage

= 200 mA

= –20 mA

13.5

= –200 mA

Rise time

= 1 nF,

See Note 2

T = 25_C

150

1.2

Fall time

= 1 nF,

T = 25_C

UVLO saturation

= 5 V,

= 10 mA

OUT

0.7

Undervoltage Lockout Section

UC2842A,

UC2844A

7.8

8.4

Start threshold

UC2843A,

UC2845A

UC2842A,

UC2844A

8.2

Minimum operation voltage after turn on

UC2843A,

UC2845A

7.6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

electrical characteristics, T = –40_C to 125_C, V

= 15 V (see Note 1), R = 10 kΩ, C = 3.3 nF, and

T T

T = T (unless otherwise stated)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNITS

PWM Section

UC2842A, UC2843A

UC2844A, UC2845A

100

Maximum duty cycle

Minimum duty cycle

Total Standby Current

Start-up current

0.3

0.5

Operating supply current

FB = 0 V,

= 25 mA

SENSE = 0 V

internal zener voltage

NOTES: 1. Adjust V

above the start threshold before setting at 15 V.

2. Not production tested.

3. Temperature stability, sometimes referred to as average temperature coefficient, is described by the equation:

.V (max)andV (min)arethemaximumandminimumreferencevoltagemeasured

(max) – V

(min)

T (max) – T (min)

REF

Temp Stability =

over the appropriate temperature range. Note that the extremes in voltage do not necessarily occur at the extremes in temperature.

4. Output frequency equals oscillator frequency for the UC2842A and UC2843A. Output frequency is one half oscillator frequency for the

UC2844A and UC2845A.

5. This parameter is measured with R = 10 kΩ to V

. This contributes approximately 300 µA of current to the measurement. The total

REF

current flowing into the R

6. Parameter measured at trip point of latch with V

pin will be approximately 300 µA higher than the measured value.

T/C

at 0 V.

v 0.8 V.

7. Gain is defined by:

; 0 v V

SENSE

COMP

SENSE

A =

RAMETER MEASUREMENT INFORMATION

Error Amp can source and sink up to 0.5 mA, and sink up to 2 mA.

Figure 1. Error Amp Configuration

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

PARAMETER MEASUREMENT INFORMATION

During UVLO, the Output is low.

Figure 2. Under Voltage Lockout

Peak Current (Is) is Determined By The Formula:

1.0V

IsmaxȀ

A small RC filter may be required to supress switch transients.

Figure 3. Current Sense Circuit

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

PARAMETER MEASUREMENT INFORMATION

Error Amplifier Open-Loop Frequency Response

Output Saturation Characteristics

Figure 5

Figure 4

PLICATION INFORMATION

Oscillator Frequency vs Timing Resistance

Maximum Duty Cycle vs Timing Resistor

Figure 6. Oscillator

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

APPLICATION INFORMATION

High peak currents associated with capacitive loads necessitate careful grounding techniques. Timing and bypass capacitors should be

connected close to pin 5 in a single point ground. The transistor and 5k potentiometer are used to sample the oscillator waveform and apply an

adjustable ramp to pin 3.

Figure 7. Open-Loop Laboratory Text Fixture

A fraction of the oscillator ramp can be resistively summed

with the current sense signal to provide slope compensation

for converters requiring duty cycles over 50%.

Note that capacitor, C, forms a filter with R2 to suppress the

leading edge switch spikes.

Figure 8. Slope Complression

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UC2842AQ, UC2843AQ, UC2844AQ, UC2845AQ

CURRENT-MODE PWM CONTROLLER

SGLS164 – APRIL 2003

APPLICATION INFORMATION

Power Supply Specifications

1. Input Voltage

2. Line Isolation

95VAC to 130VAC (50Hz/60Hz)

3750V

3. Switching Frequency 40 kHz

4. Efficiency, Full Load

5. Output Voltage:

70%

A. +5V, ±5%; 1A to 4A Load

B. +12V, ±3%; 0.1A to 0.3A Load Ripple voltage: 100 mV P-P Max

C. –12V, ±3%; 0.1A to 0.3A Load Ripple voltage: 100 mV P-P Max

Figure 9. Off-Line Flyback Regulator

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PACKAGE OPTION ADDENDUM

www.ti.com

6-Sep-2007

PACKAGING INFORMATION

Orderable Device

UC2842AQD

Status ⁽¹⁾

ACTIVE

Package Package

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

Qty

Type

Drawing

SOIC

50 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

UC2842AQD8

UC2842AQD8R

UC2842AQDR

UC2843AQD

SOIC

75 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

50 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

UC2843AQD8

UC2843AQD8R

UC2843AQD8RQ1

UC2843AQDR

UC2845AQD

75 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

50 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

UC2845AQD8

UC2845AQD8R

UC2845AQDR

75 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

⁽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.

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

Addendum-Page 1

PACKAGE OPTION ADDENDUM

www.ti.com

6-Sep-2007

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 2

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, copyright, mask

work right, or other TI intellectual property right relating to any combination, machine, or process 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 TI 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. Information of third parties

may be subject to additional restrictions.

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.

TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would

reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement

specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications

of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related

requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any

applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its

representatives against any damages arising out of the use of TI products in such safety-critical applications.

TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are

specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military

specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is

solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in

connection with such use.

TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products

are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any

non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements.

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

Products

Amplifiers

Data Converters

DSP

Applications

Audio

amplifier.ti.com

dataconverter.ti.com

dsp.ti.com

www.ti.com/audio

Automotive

Broadband

Digital Control

Military

www.ti.com/automotive

www.ti.com/broadband

www.ti.com/digitalcontrol

www.ti.com/military

Interface

interface.ti.com

logic.ti.com

Logic

Power Mgmt

Microcontrollers

RFID

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

www.ti-rfid.com

www.ti.com/lpw

Telephony

Low Power

Wireless

Video & Imaging

Wireless

www.ti.com/wireless

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

UC2843AQD8相关文章

配单直通车

首天国际（深圳）科技有限公司服务专线: 0755-82807802/82807803 在线联系:

QQ：528164397 复制

QQ：1318502189 复制

柒号芯城电子商务（深圳）有限公司服务专线: 18922803401 在线联系:

QQ：2881677436 复制

QQ：2881620402 复制

深圳市芯福林电子有限公司服务专线: 13418564337 在线联系:

QQ：2881495808 复制

QQ：308365177 复制

深圳市中利达电子科技有限公司服务专线: 0755-13686833545 在线联系:

QQ：1902134819 复制

QQ：2881689472 复制

北京元坤伟业科技有限公司服务专线: 010-62104931621064316210489162104791 在线联系:

QQ：857273081 复制

QQ：1594462451 复制

UC2843AQD8产品参数

型号:	UC2843AQD8
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：	SOIC-8
针数：	8
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8542.39.00.01
Factory Lead Time：	1 week
风险等级：	1.38
Samacsys Confidence：	3
Samacsys Status：	Released
Samacsys PartID：	182958
Samacsys Pin Count：	8
Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Small Outline Packages
Samacsys Footprint Name：	D (R-PDSO-G8)
Samacsys Released Date：	2015-04-13 16:58:35
Is Samacsys：	N
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	CURRENT-MODE
控制技术：	PULSE WIDTH MODULATION
最大输入电压：	25 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：	125 °C
最低工作温度：	-40 °C
最大输出电流：	1 A
最大输出电压：	5.05 V
最小输出电压：	4.95 V
标称输出电压：	5 V
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：	BOOST
最大切换频率：	500 kHz
技术：	BIPOLAR
温度等级：	AUTOMOTIVE
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

电子百科

产品导航

产品型号UC2843AQD8的概述

产品型号UC2843AQD8的Datasheet PDF文件预览

UC2843AQD8相关产品

UC2843AQD8相关文章

IC37:专业IC行业平台