Datasheet > A4057M8R-84

A4057M8R-84

更新时间： 2024-11-05 01:15:03

品牌	Logo	应用领域
创瑞 - AITSEMI		/
页数	文件大小	规格书
7页	233K
描述
BATTERY MANAGEMENT

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数据手册

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A4057M8R-84 数据手册

A4057

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

LINEAR LI-ION BATTERY CHARGER

DESCRIPTION

FEATURES

A4057 series is a double lithium battery charge

management chip. The chip includes a charge state

detection, the charging process, temperature

detection and so on. The chip also integrates a

high-precision reference voltage module in it.

A4057 charge contains three modes: precharge,

constant current charging, constant voltage

charging. Constant current charging current is five

times the pre-charge current; when the voltage is

lower than 6.5V into the precharge mode; when the

voltage is above 6.5V into the constant current

charge mode, the charging current is five times as

the precharge, the charging current is determined by

an external resistor.



Double lithium battery charge management

Only need a few external components

Pre-charge, constant current charging , constant

voltage charging mode



Temperature detection

Two charging status

Available in SOP8 Package

APPLICATION



Digital camera

PDAS

The phone lithium battery

TYPICAL APPLICATION

The A4057 is available in SOP8 package.

ORDERING INFORMATION

Package Type

Part Number

A4057M8R-XX

A4057M8VR-XX

SOP8

SPQ: 3,000pcs/Reel

Note: D1 is a Schottky; R_Shas been suggested that

high-precision ( 1% ) in order to ensure current

accuracy, R1 and R2 is not required precision.

XX: Output Voltage

84=8.4V

Note

V: Halogen free Package

R: Tape & Reel

AiT provides all RoHS products

REV1.1

- FEB 2014 RELEASED, OCT 2017 UPDATED -

- 1 -

12 3 4 5 6 7

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