What is the difference between the MCP73831 and MCP73832?
The difference between the MCP73831 and MCP73832 is the Status Indicator (STAT) pin. The MCP73832 is open drain. The MCP73831 is push-pull or it can directly drive LEDs. This is shown in the "Functional Block Diagram" in the datasheet available on the MCP73831 product page.