com LM3658 Dual Source USB/AC Li Chemistry Charger IC for Portable Applications May 2005 LM3658 Dual Source USB/AC Li Chemistry Charger IC for Portable Applications General Description The LM3658 is a single chip charger IC designed for handheld applications.
It can safely charge and maintain a single cell Li-Ion/Polymer battery operating from an AC wall adapter or USB power source.
Input power source selection of USB/AC is automatic.
With both power sources present, the AC power source has priority.
Charge current is programmed through an external resistor when operating from an AC wall adapter allowing charge currents from 50 mA to 1000 mA.
When the battery is charged us...

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