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SC1766 - BATTERY CHARGE CONTROLLER

Description

The SC1766 fast charge controller IC is designed for intelligent charging of NiMH or NiCd batteries without overcharging.

It detects a voltage drop (-∆V) occurring in the final stage of a fast charging cycle and correspondingly controls the charging current.

Features

  • Reliable fast charge control of NiMH/NiCd.
  • batteries Fast charge termination by: 1 Accurate -∆V detection level -0.25% with respect to peak value 2 Peak voltage timer (0∆V) Adjustable fast charge safety timer Protection against temperature fault Protection against short-circuited and open batteries Wide operation voltage range of 9V to 18V, no extra regulator needed Large battery voltage detection range of 0.65V to 3.7V LED drivers to indicate charge status or fault conditions.

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Datasheet Details

Part number SC1766
Manufacturer SEMTECH
File Size 259.35 KB
Description BATTERY CHARGE CONTROLLER
Datasheet download datasheet SC1766 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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BATTERY CHARGE CONTROLLER Janaury 30, 1998 SC1766 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The SC1766 fast charge controller IC is designed for intelligent charging of NiMH or NiCd batteries without overcharging. It detects a voltage drop (-∆V) occurring in the final stage of a fast charging cycle and correspondingly controls the charging current. Fast charge can also be cut off by a peak voltage timer (0∆V). The detection of -∆V is a very reliable method to terminate fast charging for NiMH and NiCd batteries. The SC1766 uses -∆V detection as one of the primary decisions for fast charge cut-off. The -∆V value of the SC1766 is as small as 4mV per cell, particularly suitable for NiMH as well as NiCd batteries.
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