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4056 - CC/CV linear charger

General Description

4056 is a complete CC/CV linear charger for single cell lithium-ion batteries.

specifically designed to work within USB power Specifications.

Key Features

  • include Battery temperature monitor, under-voltage lockout, automatic recharge and two status pins to indicate charge and charge termination. Features k ‹ Protection of battery cell reverse connection ‹ Programmable charge current up to 1.1A e ‹ No MOSFET sense resistor or blocking diode required ‹ Complete linear Charger for single Cell Lithium-Ion Batteries T ‹ CC and CV operation with thermal regulation to maximize Rate without risk of overheating ‹ Preset 4.2V charge voltage with ±1% accur.

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Datasheet Details

Part number 4056
Manufacturer ChipSourceTek
File Size 2.24 MB
Description CC/CV linear charger
Datasheet download datasheet 4056 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Descriptions 4056 4056 is a complete CC/CV linear charger for single cell lithium-ion batteries. it 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 P-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 4056 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached.