Battery charger enables simultaneous charging and powering

Chandler, Ariz. — Microchip Technology Inc. has launched the MCP73871 charge management controller. This Li-ion/Li-polymer charger with an intelligent charge management feature enables simultaneous ac/dc adapter or USB port charging and powering of devices. The single-chip charger features an integrated pass transistor, and numerous battery and termination-voltage options, which make it suitable for complex, space-constrained portable applications.

By enabling electronic devices to be simultaneously powered and charged via either an ac/dc adapter or through a USB port, the MCP73871 charge-management controller simplifies the charging and powering of portable electronic devices such as GPS units, phone chargers, toys, cameras, PDAs, and Bluetooth headsets. With highly accurate voltage regulation of 0.5%, the charger extends battery life by allowing the battery to be charged closer to its optimal limit. In addition, with its integrated pass transistor, the charger eliminates the need for an external FET, and only a few small passive components are necessary.

The MCP73871 charger is available in a 20-pin, 4 x 4 mm QFN package. Microchip also announced the MCP73871 evaluation board (Part # MCP73871EV).

Pricing: The MCP73871 charger is priced at $1.28 each in quantities of 10,000. The MCP73871 evaluation board is available now at for $20.
Availability: Samples of the MCP73871 device are available at Volume production quantities can be ordered at
Product information: MCP73871

Microchip Technology Inc. ,

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