LP3945 Battery Charge Management

National Semiconductor

Description

LP3945/LP3946 Battery Charge Management System October 2003 LP3945/LP3946 Battery Charge Management System General .
The LP3945 and LP3946 are complete charge management systems that safely charge and maintain a Li-Ion battery or a four-cell Ni-MH (LP3945 only) batte.

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Datasheet Specifications

Part number: LP3945
Manufacturer: National Semiconductor
File Size: 337.38 KB
Datasheet: LP3945_NationalSemiconductor.pdf
Description: Battery Charge Management

Features

* Ni-MH charging mode as well. The charger has under-voltage and over-voltage protection as well as an internal 5.6 hr timer to prevent overcharging the battery. There are two open drain outputs for status indication. An internal amplifier readily converts the charge current into a voltage. Also, the

Applications

* n n n n n Cellular phones PDAs Digital cameras USB powered devices Programmable current sources Typical Application Circuit 20066502 20066501 © 2003 National Semiconductor Corporation DS200665 www. national. com LP3945/LP3946 LP3945/LP3946 LLP14 Package Drawing 20066503 (TOP VIEW) See NS Pac

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LP3945 Battery Charge Management National Semiconductor

National Semiconductor LP3945-like datasheet