Microchip Technology, Inc. PMIC - Battery Chargers MCP73871-1CCI/ML

The MCP73871-1CCI/ML-ND is a fully integrated linear battery management controller designed for single-cell Li-Ion and Li-Polymer batteries. It features simultaneous system load sharing and battery charging, allowing the device to prioritize system power while managing battery charge current through Voltage Proportional Current Control (VPCC). The device supports multiple input power sources, including USB ports and AC-DC wall adapters, with a maximum total input current of 1.8A. This controller operates using a constant current/constant voltage (CC/CV) charging algorithm, with selectable charge voltage options of 4.10V, 4.20V, 4.35V, or 4.40V, and a regulation tolerance of ¬±0.5%. It includes integrated safety features such as reverse discharge protection, thermal regulation, and a safety timer. The MCP73871 also provides indicators for low battery status, power good status, and charge status, facilitating communication with host microcontrollers. The device is packaged in a compact 20-lead QFN format and is rated for operation in a temperature range of -40¬8C to +85¬8C, making it suitable for various portable applications, including GPS devices, smartphones, and portable medical equipment.