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Li-On Battery Charger via USB

2016-05-11 10:36  
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Figure 1 

AUSBport is a great power source for charging a single cell li-on battery. It is capable of supplying maximum 5.25V and 500 mA. The circuit above is aUSBpowered single cell li-on battery charger. LM3622 is used as the controller. This special purpose IC has a precise end-of-charge control and low battery leakage current about 200nA.


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