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TP4056 charging module

Overview

The TP4056 charging management chip is a commonly used constant current/constant voltage linear charging management chip for single-cell lithium batteries. Due to its internal PMOSFET architecture and reverse charging protection circuit, it does not require an external isolation diode. The module features five current selection levels and an independent switch; a red light illuminates during charging, and a green light illuminates when fully charged. For those with advanced technical skills, thermal feedback can be added for automatic adjustment of the charging current.

The charging current is determined by the Rprog resistor; the specific charging current setting formula is as follows:

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-26 23:43:11

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