Microchip Technology, Inc. PMIC - PMIC - Battery Chargers - MCP73871T-2AAI/ML MCP73871T-2AAI/ML

The MCP73871T-2AAI/MLTR-ND is a fully integrated linear battery management controller designed for single-cell Li-Ion and Li-Polymer batteries. It features simultaneous power delivery to the system load while charging the battery, utilizing a voltage proportional current control (VPCC) mechanism that prioritizes system load over battery charge current. The device supports multiple input power sources, including USB ports and AC-DC wall adapters, and allows for autonomous power source selection. This controller operates with a constant current/constant voltage (CC/CV) charging algorithm and offers selectable charge voltage options of 4.10V, 4.20V, 4.35V, or 4.40V, with a regulation tolerance of ¬±0.5%. It can manage a maximum total input current of 1.8A and provides programmable fast charge current control ranging from 50 mA to 1A. Additional features include automatic recharge, end-of-charge control, battery temperature monitoring, and various status indicators for charge and fault conditions. The MCP73871T-2AAI/MLTR-ND is suitable for a wide range of portable applications, including GPS devices, smartphones, and portable medical devices, and operates within a temperature range of -40¬8C to +85¬8C. It is packaged in a compact 20-lead QFN format, making it ideal for space-constrained designs.