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A4051 - 1A LINEAR LI-ION BATTERY CHARGER

Datasheet Summary

Features

  • The A4051 is a complete constant current & constant voltage linear charger for single cell lithium-ion batteries. Its PSOP8 package and low external component count make the A4051 ideally suited for portable.

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Datasheet Details

Part number A4051
Manufacturer AiT Semiconductor
File Size 799.68 KB
Description 1A LINEAR LI-ION BATTERY CHARGER
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Full PDF Text Transcription

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AiT Semiconductor Inc. www.ait-ic.com A4051 BATTERY MANAGEMENT 1A LINEAR LI-ION BATTERY CHARGER DESCRIPTION FEATURES The A4051 is a complete constant current & constant voltage linear charger for single cell lithium-ion batteries. Its PSOP8 package and low external component count make the A4051 ideally suited for portable applications. Furthermore, the A4051 is specifically designed to work within USB power specifications. 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.
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