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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.