MCP73811/2
Simple, Miniature Single-Cell, Fully Integrated
Li-Ion / Li-Polymer Charge Management Controllers
Features Description Complete Linear Charge Management Controller
-Integrated Pass Transistor
-Integrated Current Sense
-Integrated Reverse Discharge Protection Constant Current / Constant Voltage Operation
with Thermal Regulation High Accuracy Preset Voltage Regulation: + 1% Voltage Regulation: 4.20V Selectable Charge Current:
-MCP73811: 85 mA / 450 mA Programmable Charge Current:
-MCP73812: 50 mA -500 mA Minimum External Components Required:
-MCP73811: 2 Ceramic Capacitors
-MCP73812: 2 Ceramic Capacitors and
1 Resistor No Preconditioning External End-of-Charge Control Automatic Power-Down when Input Power
Removed Active High Charge Enable Temperature Range:
-40В°C to +85В°C Packaging:
-5-Lead SOT-23 The MCP73811/2 devices are linear charge management controllers that are designed for use in space
limited and cost sensitive applications. The
MCP73811/2 provide specific charge algorithms for
single cell Li-Ion or Li-Polymer battery to achieve
optimal capacity in the shortest charging time possible.
Along with its small physical size, the low number of
external components required make the MCP73811/2
ideally suited for portable applications. For applications …