Housed in a 5-pin SOT-23 package, the MCP73811 and MCP73812 Li-ion/Li-polymer charge-management controllers provide fully integrated charge-management functions and selectable or programmable charge currents up to 500 mA. The chips are USB compatible and come with integrated current sense, pass transistor, and reverse-battery protection.
The MCP73811 has a digital input and selectable USB charge currents of either 85 or 450 mA, and the MCP73812 offers a user-programmable charge current via an external resistor. ($0.57 ea/10,000—available now.)
Microchip Technology , Chandler , AZ
Literature Inquiries 888-MCU-MCHP
http://www.microchip.com/MCP7381X
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