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WS4508E - Single Li-ion Battery Charger

Datasheet Summary

Description

The WS4508E 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.

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Datasheet preview – WS4508E

Datasheet Details

Part number WS4508E
Manufacturer WillSEMI
File Size 269.70 KB
Description Single Li-ion Battery Charger
Datasheet download datasheet WS4508E Datasheet
Additional preview pages of the WS4508E datasheet.

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Full PDF Text Transcription

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WS4508E WS4508E 600mA, Single Li-ion Battery Charger Http//:www.sh-willsemi.com Descriptions The WS4508E 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. SOT-23-5L CHGb 1 5 PROG The WS4508E automatically terminates the charge cycle when the charge current drops to 1/10 the programmed value after the final float voltage is reached.
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