This LiPoly fast charger PRT-08293 is for charging lithium polymer batteries.

This little black box charges single cell lithium polymer batteries with a max rate of 1A. This works well with our 5V/1A regulated supply. The charge output is via a 2-pin screw terminal. Top pin is ground, bottom pin is charge pin. Based on the popular Microchip part MCP73843-410.

Schematic design PRT-08293

Datasheet MCP73843

Pinout