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TP4057-Single-cell lithium battery charging verification board

Overview

A single-cell lithium battery charging verification board based on the TP4057 chip. It has Type-C and USB-A power inputs on the board. It has a 3.3v voltage regulator that can output 3.3V, and has charging completion and charging indicator lights.

TP4057 is a constant current/constant voltage linear charging IC dedicated to single-cell lithium batteries. It has battery reverse polarity protection and anti-reverse charging circuit inside. The operating voltage range of this charging IC is 4~6V, and the quiescent operating current is only 40μA. Its output charging current can be set by the external resistor connected to pin ⑥. When the resistor value is 1.6K, the maximum charging current is 600mA.

The actual picture is as follows:

Design Files

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Update:2025-05-08 23:58:01

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