Microchip (MCP73871-2CCI/ML) Battery Charger for 1 Cell of Li-Ion,

Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 6V input, 4.2V / 1Acharge, QFN-20Product OverviewThe MCP73871-2CCI/ML is a stand-alone system load sharing and Li-ion/Li-polymerbattery charge Management Controller with AC-DC wall adapter and USB port powersources selection. It is also capable of autonomous power source selectionbetween input or battery. This device automatically obtains power for the systemload from a single-cell Li-Ion battery or an input power source (AC-DC walladapter or USB port). This device specifically adheres to the current drawnlimits governed by the USB specification. With an AC-DC wall adapter providingpower to the system, an external resistor sets the magnitude of 1A maximumcharge current while supporting up to 1.8A total current for system load andbattery charge current. This device employs a constant current/constant voltage(CC/CV) charge algorithm with selectable charge termination point.Integrated pass transistorsIntegrated current senseIntegrated reverse discharge protection±0.5% Regulation toleranceMaximum 1.8A total input current controlResistor programmable termination set pointAutomatic rechargeAutomatic end-of-charge controlSafety timer with timer enable/disable control0.1C Preconditioning for deeply depleted cellsBattery cell temperature monitorCharge status and fault condition indicatorsApplicationsAerospace, Defence, Military, Consumer Electronics, Portable DevicesProduct InformationBattery Type: Li-Ion, Li-PolInput Voltage: 6VBattery Charge Voltage: 4.2VCharge Current Max: 1ABattery IC Case Style: QFNNo. of Pins: 20PinsNo. of Series Cells: 1Operating Temperature Min: -40°COperating Temperature Max: 85°CIC Mounting: Surface Mount