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LM3420-16.8

Part Number	LM3420-16.8
Manufacturer	National Semiconductor
Description	Lithium-Ion Battery Charge Controller
Published	Mar 22, 2005
Detailed Description	LM3420-4.2, -8.2, -8.4, -12.6, -16.8 Lithium-Ion Battery Charge Controller July 2000 LM3420-4.2, -8.2, -8.4, -12.6, -1...
Datasheet	LM3420-16.8 PDF File

Overview

LM3420-4.
2, -8.
2, -8.
4, -12.
6, -16.
8 Lithium-Ion Battery Charge Controller July 2000 LM3420-4.
2, -8.
2, -8.
4, -12.
6, -16.
8 Lithium-Ion Battery Charge Controller General Description The LM3420 series of controllers are monolithic integrated circuits designed for charging and end-of-charge control for Lithium-Ion rechargeable batteries.
The LM3420 is available in five fixed voltage versions for one through four cell charger applications (4.
2V, 8.
2V/8.
4V, 12.
6V and 16.
8V respectively).
Included in a very small package is an (internally compensated) op amp, a bandgap reference, an NPN output transistor, and voltage setting resistors.
The amplifier’s inverting input is externally accessible for loop frequency compensation.
The output is an open-emitter NPN transistor capable of driving up to 15 mA of output current into external circuitry.
A trimmed precision bandgap reference utilizes temperature drift curvature correction for excellent voltage stability over the operating temperature ran...

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LM3420-16.8 Lithium-Ion Battery Charge Controller - National Semiconductor

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