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 / 1A charge, QFN-20

Product Overview
The MCP73871-2CCI/ML is a stand-alone system load sharing and Li-ion/Li-polymer battery charge Management Controller with AC-DC wall adapter and USB port power sources selection. It is also capable of autonomous power source selection between input or battery. This device automatically obtains power for the system load from a single-cell Li-Ion battery or an input power source (AC-DC wall adapter or USB port). This device specifically adheres to the current drawn limits governed by the USB specification. With an AC-DC wall adapter providing power to the system, an external resistor sets the magnitude of 1A maximum charge current while supporting up to 1.8A total current for system load and battery charge current. This device employs a constant current/constant voltage (CC/CV) charge algorithm with selectable charge termination point.

Integrated pass transistors
Integrated current sense
Integrated reverse discharge protection
±0.5% Regulation tolerance
Maximum 1.8A total input current control
Resistor programmable termination set point
Automatic recharge
Automatic end-of-charge control
Safety timer with timer enable/disable control
0.1C Preconditioning for deeply depleted cells
Battery cell temperature monitor
Charge status and fault condition indicators

Applications
Aerospace, Defence, Military, Consumer Electronics, Portable Devices

Product Information

Battery Type: Li-Ion, Li-Pol
Input Voltage: 6V
Battery Charge Voltage: 4.2V
Charge Current Max: 1A
Battery IC Case Style: QFN
No. of Pins: 20Pins
No. of Series Cells: 1
Operating Temperature Min: -40°C
Operating Temperature Max: 85°C
IC Mounting: Surface Mount

What's in the box
1 x Battery Charger