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Charger enables faster connection in portable devices

Posted: 07 Aug 2008 ?? ?Print Version ?Bookmark and Share

Keywords:charger? battery? USB? adapter? Li-ion?

Microchip Technology Inc. has released the MCP73871 charge-management controllera Li-ion/Li-polymer charger with an intelligent charge management feature that enables simultaneous AC/DC adapter or USB port charging and powering of devices. The single-chip charger has an integrated pass transistor and provides numerous battery and termination-voltage options. It is ideal for complex, space-constrained portable applications.

Allowing electronic equipment to be simultaneously powered and charged either by an AC/DC adapter or through a USB port, the controller enables the easier charging and powering of many portable devices. With its voltage regulation of 0.5 percent, the charger extends battery life by charging it almost reaching its optimal limit. Using its integrated pass transistor, the charger minimizes employing the external FET, and only a few small passive components are needed. As a result, smaller, less complicated and cheaper designs may be used.

"Our customers are looking for a compact charger to meet the demands of today's advanced portable electronic devices, which offer traditional wall-plug charging, plus USB-port charging and connectivity," said Bryan Liddiard, VP of marketing with Microchip's analog and interface products division. "The MCP73871 charger responds to these needs and offers everything from simple, USB-based battery charging, to complex power-path solutions."

The MCP73871 charge-management controller is ideal for portable consumer electronic products like GPS units, phone chargers, toys, cameras, PDAs and Bluetooth headsets.

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