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What is TP4057?

This electronic component, produced by the manufacturer "NanJing Top Power", performs the same function as "500mA Linear Li-Ion Battery Charger".


TP4057 Datasheet PDF - NanJing Top Power

Part Number TP4057
Description 500mA Linear Li-Ion Battery Charger
Manufacturers NanJing Top Power 
Logo NanJing Top Power Logo 


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No Preview Available ! TP4057 datasheet, circuit

南京拓微集成电路有限公司
TP4057
南京拓微集成电路有限公司
NanJing Top Power ASIC Corp.
数据手册
DATASHEET
TP4057
(500mA 线性锂离子电池充电器)
概述、特点、典型应用-------------------------------------------------------------------------------------P2
管脚、特性指标----------------------------------------------------------------------------------------------P3
引脚功能说明-------------------------------------------------------------------------------------------------P5
充电电流大小设置、电池反接保护功能----------------------------------------------------------------P7
充电指示状态、无电池连接指示状态-------------------------------------------------------------------P8
多种典型应用图、使用注意事项-------------------------------------------------------------------------P12

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TP4057 equivalent
南京拓微集成电路有限公司
TP4057
流充电与温度关系
线
充电电流电池电压的关系
线
充电电流电压的关系
线
充电电流与环境温度
系曲线
充电电压与温度
系曲线
FET“导通”电阻与温
关系曲线
引脚功能
CHRG (引脚 1):漏极开路输出的充电状
态指示端。充电器电池充电CHRG
管脚被内部开关拉示充电正在
进行否则 CHRG 管脚于高阻态
GND(引脚 2):地
BAT(引脚 3):充电电流输出。引脚
电池充电电流并最终充电压
4.2V引脚的一个精电阻压器
设定充电压,在机模式该内电阻
压器开。
VCC(引脚 4):正输入电源电压。引脚
充电器VCC 化范围4V 9V
,并应少一个 1μF 进行
VCC 降至 BAT 引脚电压的 30mV
TP4057 机模式使 IBAT
2μA
STDBY (引脚 5):电池充电完成指示端。
电池充电STDBY 被内部开关拉
示充电STDBY
管脚于高阻态
PROG(引脚 6):充电电流设定、充电电流
监控和停机引脚。引脚连接
个精度为 1%的电阻器 RPROG 设定充电
电流在恒定电流模式进行充电,引
脚的电压1V
PROG 引脚可用来关断充电器设定电
阻器地断接,部一个 2.5μA 电流
PROG 引脚高电当该引脚的电压达
2.7V 限电压,充电器
机模式,充电输入电流降至
40μA重新RPROG 地相使充电器
恢复操作状态
5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for TP4057 electronic component.


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TP4057 datasheet


1. Lithium Battery Cell Charging IC

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