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LP28056S

Part Number	LP28056S
Manufacturer	Lowpowersemi
Description	1.2A Single-chip Li-ion and Li-POL Charge
Published	Sep 13, 2018
Detailed Description	Preliminary Datasheet LP28056S 1.2A Single-chip Li-ion and Li-POL Charge General Description The LP28056S is a complet...
Datasheet	LP28056S PDF File

Overview

Preliminary Datasheet LP28056S 1.
2A Single-chip Li-ion and Li-POL Charge General Description The LP28056S is a complete constant-current / constant-voltage linear charger for single cell lithium-ion batteries.
Its ESOP-8 package and low external component count make the LP28056S ideally suited for portable applications.
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 ISET rammed externally with a single resistor.
The LP28056S automatically terminates the charge cycle when the charge current drops to 1/10th the RISET rammed value after the final float voltage is reached.
When the input supply is removed, the LP28056S automatically enters a low current state, dropping the battery drain current to less than 1µA.
The LP28056S c...

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