Overview
The TP4056 is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its ESOP-8 package with an internal thermal pad and low external component count make it a standard choice for portable applications.
Why Choose This Part
The TP4056 eliminates the need for an external sense resistor and blocking diode due to its internal PMOSFET architecture. It features programmable charge current up to 1A and includes thermal regulation to prevent overheating during high power operation or high ambient temperatures.
Applications
Key Specifications
Getting Started
To use the TP4056, connect a resistor from the PROG pin to ground to set the maximum charge current. Ensure the 8-ESOP package's thermal pad is soldered to a large PCB copper area to manage heat dissipation during 1A charging cycles.
