Datasheet > A7431

A7431

更新时间： 2024-11-24 01:13:11

品牌	Logo	应用领域
创瑞 - AITSEMI		DC-DC转换器
页数	文件大小	规格书
15页	391K
描述
DC-DC CONVERTER BUCK CC/CV

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中文翻译

获取价格

数据手册

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A7431 数据手册

A7431

DC-DC CONVERTER BUCK (STEP-DOWN)

42V 3A CC/CV

AiT Semiconductor Inc.

www.ait-ic.com

DESCRIPTION

FEATURES

A7431 is a wide input voltage, high efficiency

CC/CV step-down DC-DC converter that operates

in either CV (Constant Output Voltage) mode or CC

(Constant Output Current) mode. A7431 provides

up to 3A output current at 125kHz switching

frequency.

A7431 eliminates the expensive, high accuracy

current sense resistor, making it ideal for battery

charging applications and adaptors with accurate

current limit. The A7431 achieves higher efficiency

than traditional constant current switching

regulators by eliminating its associated power loss

on the additional current sensing resistor. A7431

provides OVP pin for output over voltage protection.

A7431 integrates adaptive gate drive to achieve

excellent EMI performance passing EN55022 Class

B EMC standard without adding additional EMI

components while maintaining high conversion

efficiency.



42V Input Voltage Surge

36V Steady State Operation

Up to 3A Output Current

Output Voltage up to 12V

125kHz Switching Frequency

Up to 91% Efficiency

Stable with Low-ESR Ceramic Capacitors to

Allow Low-Profile Designs



Integrated Over Voltage Protection

Excellent EMI Performance

Constant Current Control Without Additional

Current Sensing Resistor Improves Efficiency

and Lowers Cost.

Resistor Programmable Current Limit from 1.5A

to 3.5A

Up to 0.5V Excellent Cable Voltage Drop

Compensation

±7.5% CC Accuracy

2% Feedback Voltage Accuracy

Advanced Feature Set

Integrated Soft Start

Thermal Shutdown



Protection features include cycle-by-cycle current

limit, thermal shutdown, and frequency foldback at

short circuit. A7431 are available in a PSOP8

package and require very few external devices for

operation.

Cycle-by-Cycle Current Limit

Available in PSOP8 Package



APPLICATION

The A7431 is available in PSOP8 package.



Car Charger/ Adaptor

Rechargeable Portable Devices

General-Purpose CC/CV Supply

ORDERING INFORMATION

Package Type

Part Number

A7431MP8R

A7431MP8VR

TYPICAL APPLICATION

PSOP8

MP8

SPQ: 4,000pcs/Reel

V: Halogen free Package

R: Tape & Reel

Note

AiT provides all RoHS products

REV1.1

- JAN 2016 RELEASED, SEP 2016 UPDATED -

- 1 -

12 3 4 5 6 7...15

中文翻译

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与A7431相关器件

型号	品牌	获取价格	描述	数据表
A7431A	AITSEMI	获取价格	DC-DC CONVERTER BUCK CC/CV
A7431AMP8R	AITSEMI	获取价格	DC-DC CONVERTER BUCK CC/CV
A7431AMP8VR	AITSEMI	获取价格	DC-DC CONVERTER BUCK CC/CV
A7431MP8R	AITSEMI	获取价格	DC-DC CONVERTER BUCK CC/CV
A7431MP8VR	AITSEMI	获取价格	DC-DC CONVERTER BUCK CC/CV
A7442	AITSEMI	获取价格	DC-DC CONVERTER/ BUCK HIGH PERFORMANCE CV/CC QUICK CHARGER SYNCHRONOUS
A7442MP8R	AITSEMI	获取价格	DC-DC CONVERTER/ BUCK HIGH PERFORMANCE CV/CC QUICK CHARGER SYNCHRONOUS
A7442MP8VR	AITSEMI	获取价格	DC-DC CONVERTER/ BUCK HIGH PERFORMANCE CV/CC QUICK CHARGER SYNCHRONOUS
A-7478-02A102	MOLEX	获取价格	2.54mm (.100) Pitch KK® Solid Header, Right A
A-7478-02A222	MOLEX	获取价格	KKÂ® 254 Solid Header, Right Angle, with Fric

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