The MICROCHIP MCP73831/2 devices are advanced linear charge management controllers designed for portable applications with limited space and cost constraints. These controllers offer a constant-current/constant-voltage charge algorithm with selectable preconditioning and charge termination, accommodating various battery charging requirements. They are suitable for applications such as Bluetooth headsets, USB chargers, personal data assistants, cellular telephones, digital cameras, and MP3 players, adhering to USB power bus specifications. The MCP73831/2 limit the charge current based on die temperature, optimizing charge cycle time while maintaining device reliability.