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WS4518D

WillSEMI
Part Number WS4518D
Manufacturer WillSEMI
Description Single Li-ion Battery Charger
Published Apr 30, 2017
Detailed Description WS4518D 300mA, Single Li-ion Battery Charger WS4518D www.sh-willsemi.com Descriptions The WS4518D is a complete consta...
Datasheet PDF File WS4518D PDF File

WS4518D
WS4518D

Overview
WS4518D 300mA, Single Li-ion Battery Charger WS4518D www.
sh-willsemi.
com Descriptions The WS4518D is a complete constant-current / constant voltage linear charger for single cell Lithium-Ion batteries.
No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture.
Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature.
The charge voltage is fixed at 4.
2V, and the charge current can be programmed externally with a single resistor.
The WS4518D automatically terminates the charge cycle when the charge current drops to 3/10 the programmed value after the final float vol...


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