The Microchip MCP73831/2 devices are advanced linear charge management controllers designed for space-limited and cost-sensitive applications. Available in compact packages, these controllers require minimal external components, making them ideal for portable devices. They employ a constant-current/constant-voltage charge algorithm with selectable preconditioning and charge termination, offering flexibility for various battery charging requirements. Thermal regulation optimizes charge cycle time while maintaining device reliability. Applications include lithium-ion/lithium-polymer battery chargers, personal data assistants, cellular telephones, digital cameras, MP3 players, Bluetooth headsets, and USB chargers.