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LP28055

Lowpowersemi
Part Number LP28055
Manufacturer Lowpowersemi
Description 1A Single Chip Li-Ion and Li-Polymer Charger
Published Sep 13, 2018
Detailed Description LP28055 1A Single Chip Li-Ion and Li-Polymer Charger General Description The LP28055 is a complete constant-current/ c...
Datasheet PDF File LP28055 PDF File

LP28055
LP28055

Overview
LP28055 1A Single Chip Li-Ion and Li-Polymer Charger General Description The LP28055 is a complete constant-current/ constant voltage linear charger for single cell lithium-ion battery.
Its ESOP8 package and low external component count make the LP28055 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 programmed externally with a single resistor.
The LP28055 automatically terminates the charge cycle when the charge current drops to 1/10 setting current value after the final float voltage is reached.
When the input supply is removed, the LP28055 automatically enters a low current state, dropping the battery drain current to less than < 1µA.
Other features include charge current m...


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