Electronicdesign 2889 Xl 05 Diodes 3 0

Battery Charger Provides Dual Input

June 3, 2010
Via two inputs, the API9221 lithium ion/polymer battery charger enables USB host and DC adaptor connections, delivering charge currents in accordance with the USB standard or up to 1.2A, respectively.

Via two inputs, the API9221 lithium ion/polymer battery charger enables USB host and DC adaptor connections, delivering charge currents in accordance with the USB standard or up to 1.2A, respectively. The inputs can withstand a maximum voltage of 28V and the IC will suspend charging when the input voltage exceeds 5.4V on the USB input or 6.9V on the dc-adaptor input. Outputs also feature reverse-current protection. Other features include a bypass LDO regulator, thermal regulation and protection, an industry-standard CC/CV charging algorithm, and a 1% error across the device’s operating temperature range. Price for the API9221 is $0.93 each/1,000. DIODES INC., Westlake Village, CA. (805) 446-4800.

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