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Microchip Technology releases the MCP73831 battery charger — a fully-integrated, single-cell, Li-Ion/Li-Polymer charge-management controller. Equipped with a pass transistor, current sense and reverse-discharge protection, the MCP73831 charger reduces the number of components needed for battery-charger designs. Its accurate, pre-set voltage regulation (maximum accuracy 0.5% to 0.75%) results in more fully charged batteries and extended battery life. The device’s SOT-23 5-pin 2 × 3 mm 8-pin, thermally enhanced DFN packages enable smaller, smarter charger designs for a wide variety of portable consumer devices such as wireless Bluetooth® headsets, MP3 players and digital cameras. In addition, the DFN package option allows high charging currents of up to 500 mA for faster charging. The controller also features on-chip thermal regulation that decreases charge current when temperatures become too hot, thus preventing damage to the integrated circuit. The MCP73831’s charge current is user-programmable, enabling designers to customize charging currents for specific applications.

Microchip Technology Inc.