Microchip announced the expansion of its analog power-management family with the MCP73831 battery charger, a fully-integrated, single-cell, Li-ion/Li-Polymer charge-management controller. Tiny 500mA linear charge management controller can be powered directly from the USB port. Includes integrated pass transistor, current sense and reverse-discharge protection, the MCP73831 charger reduces the number of components needed for battery-charger designs. Its highly accurate, pre-set voltage regulation (maximum accuracy 0.5 per cent to 0.75 per cent) results in more fully charged batteries and extended battery life. Since the MCP73831 charge-management controller includes a pass transistor, current sense and reverse-discharge protection on a single chip, it reduces the number of system components needed for battery-charger designs, which, added Microchip, lowers overall system costs.

     Lithium Ion Battery Charger with Microchip MCP73831
     Lipoly Low Battery Indicator
     Portable USB Charger
     Automatic Battery Charger
     NiCd Charger with Thermal Peak Detection
     LiPoly charging with MCP73833
     Li-ion Battery Charger
     Solar Battery Charger with LM317
     Automatic Battery Charger
     Li-Po Charger and Balancer

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