TP4057 - 500mA linear lithium ion battery charger

TP4057 Datasheet Preview — Preview of TP4057 PDF

Datasheet Details

Part number	TP4057
Manufacturer	UMW
File Size	761.94 KB
Description	500mA linear lithium ion battery charger
Datasheet	TP4057-UMW.pdf

TP4057 Product details

Description

TP4057 is an excellent linear charger with constant current and constant voltage for single lithium ion battery.TP4057 is packaged in SOT23-6 package with less peripheral components, which makes it very suitable for portable products, and suitable for power supply of USB power supply and adapter power supply.

Features

battery temperature monitoring, undervoltage locking, automatic recharging and two status pins to show charging and charging termination. Features I Programmable charging current 500mA I No need for external MOSFET, resistance detection and isolation diode I Complete linear charger with SOT23-6 package for single lithium battery I Constant current / constant voltage operation with thermal regulation to maximize charging rate without risk of overheating. I The accuracy reaches 4.24V precharge v.

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Published: Aug 17, 2025 |