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LM3621

Part Number	LM3621
Manufacturer	National Semiconductor
Description	Single Cell Lithium-Ion Battery Charger Controller
Published	Mar 22, 2005
Detailed Description	LM3621 Single Cell Lithium-Ion Battery Charger Controller March 1998 LM3621 Single Cell Lithium-Ion Battery Charger Co...
Datasheet	LM3621 PDF File

Overview

LM3621 Single Cell Lithium-Ion Battery Charger Controller March 1998 LM3621 Single Cell Lithium-Ion Battery Charger Controller General Description The LM3621 is a full function constant voltage, constant current (CVCC) lithium-ion (Li+) battery charger controller.
It provides 1% regulation accuracy over the specified temperature range without requiring the use of external precision resistors.
The IC controls five charge modes: conditioning, fast, top-off, monitor and maintenance.
In addition, the LM3621 detects and flags defective batteries as well as over current and over voltage fault events.
The architecture of the IC is based on high gain constant voltage and constant current control l...

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