MCP73844-840I/MS-MICROCHIP -Battery Charger for 2 Cells of Li-Ion, Li-Pol battery, 9.4V input, 8.4V / 1A charge, MSOP-8

The MCP73844-840I/MS is an advanced dual cell lithium-ion/lithium-polymer charge Management Controller for use in space-limited and cost-sensitive applications. This combines high accuracy constant-voltage (0.5% maximum), constant-current regulation, cell preconditioning, advanced safety timers and automatic charge termination. The device provides a complete, fully functional, stand-alone charge management solution for applications utilizing dual series cell lithium-ion or lithium-polymer battery packs. This operates with an input voltage range of 8.7 to 12V and is fully specified over the ambient temperature range of -40 to +85°C.

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Features:

1. Safety charge timer
2. Automatic charge termination
3. Automatic recharge
4. Charge status indicator
5. 0.5% (maximum) High accuracy voltage regulation
6. Automatic preconditioning of deeply depleted cells
7. 0.25µA (typical) Shutdown current
8. No inductor required
9. Programmable charge current
10. Automatic power-down when input power removed