Datasheet > A7431A

A7431A

更新时间： 2024-11-27 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	378K
描述
DC-DC CONVERTER BUCK CC/CV

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中文翻译

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数据手册

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A7431A 数据手册

A7431A

DC-DC CONVERTER BUCK (STEP-DOWN)

42V 3A CC/CV

AiT Semiconductor Inc.

www.ait-ic.com

DESCRIPTION

FEATURES

A7431A 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. A7431A provides

up to 3A output current at 230kHz switching

frequency.

A7431A eliminates the expensive, high accuracy

current sense resistor, making it ideal for battery

charging applications and adaptors with accurate

current limit. The A7431A achieves higher

efficiency than traditional constant current switching

regulators by eliminating its associated power loss

on the additional current sensing resistor.



42V Input Voltage Surge

36V Steady State Operation

Up to 3A Output Current

Output Voltage up to 12V

230kHz Switching Frequency

Up to 91% Efficiency

Stable with Low-ESR Ceramic Capacitors to

Allow Low-Profile Designs

230kHz Switching Frequency Eases EMI Design

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



Protection features include cycle-by-cycle current

limit, thermal shutdown, and frequency foldback at

short circuit. A7431A are available in a PSOP8

package and require very few external devices for

operation.



±7.5% CC Accuracy

2% Feedback Voltage Accuracy

Advanced Feature Set

The A7431A is available in PSOP8 package.

Integrated Soft Start

Thermal Shutdown

Cycle-by-Cycle Current Limit

Available in PSOP8 Package

ORDERING INFORMATION



APPLICATION

Package Type

PSOP8

Part Number

A7431AMP8R

A7431AMP8VR



Car Charger/ Adaptor

Rechargeable Portable Devices

General-Purpose CC/CV Supply

MP8

V: Halogen free Package

R: Tape & Reel

Note

TYPICAL APPLICATION

SPQ: 4,000pcs/Reel

AiT provides all RoHS products

Suffix “ V “ means Halogen free Package

REV1.0

- SEP 2016 RELEASED -

- 1 -

12 3 4 5 6 7...15

中文翻译

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