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).

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
• Voltage reference output
• Quick and easy testing for production
• Space saving 8-pin and 14-pin SO packages

APPLICATIONS
Battery chargers for:
• Mobile phones
• Notebook and laptop personal computers
• Portable power tools and toys
• Portable communications equipment
• Portable video and stereo equipment