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Step-down DC-DC switching charger ICs target single cell Li-Ion batteries in mobile devices

Step-down DC-DC switching charger ICs target single cell Li-Ion batteries in mobile devices

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By eeNews Europe



The performance and features of the AS3610/11 make the charger ICs well suited for applications that are powered by one Li-Ion battery. Such applications include high-end blood glucose meters, remote controls, GPS outdoor navigation or tracking equipment, mobile phones, e-dictionaries and e-book readers.

The AS3610/11 switching charger ICs were designed with inputs from the handset and portable markets to use a high efficiency switch mode charger with minimum ripple. Implementation is simplified with most options and features controlled by pin strapping or OTP. These features include current limit set, charging current, OTG boost, and more. The AS3610 step-up DC-DC also supports 900 mA input current limitation for USB 3.0.

Other features of the AS3610/11 step-up DC-DCs include: 22 V over-voltage protection; reverse polarity protection; chip and battery temperature supervision, and charger time-out supervision. The AS3610/11 is available in a small 3×3 mm MLPD14 package, and operates from a supply of 2.7 V to 5.5 V over a temperature range of -40 to 85 ºC. A WL-CSP package option is available for PCB space critical applications.

The AS3610/11 DC-DCs are available now and are priced at $1.20 in 1000-piece quantities. A demo board is also available to speed development time.

More information about austriamicrosystems’ AS3610/11 and the demo board at www.austriamicrosystems.com/BatteryChargers

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