National Instruments - LM3647

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Contents

LM3647 Reference Design User s Manual National Semiconductor Application Note 1164 March 2001 GENERAL DESCRIPTION The LM3647 is a charge controller for Nickel Cadmium Ni Cd Nickel Metal Hydride Ni MH or Lithium Ion Li Ion batteries The device uses a pulsed current charging or a constant current charging technique The device can also be configured to discharge before charging Throughout the charging sequence the LM3647 monitors voltage and or temperature and time in order to terminate charging Negative delta voltage AV Maximum voltage Optional Delta temperature delta time AT At Optional Maximum temperature Backup Maximum time The LM3647 is user configurable for three battery chemistries Ni Cd Ni MH or Li Ion I ...