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MOSDESIGN SEMICONDUCTOR CORP.
CONTINUOUS, ON/OFF LAMP DIMMER , /
DIMMER
M7232
GENERAL DESCRIPTION
M7232 is a CMOS integrated circuits designed for the control of brightness of incandescent lamps. The outputs control the brightness of a lamp by controlling the firing angle of a TRAIC connected with the lamp. All internal timings are synchronized with the line frequency by means of a phase-lock loop circuit and output occurs once every half-cycle of the line frequency. The brightness of the output is con trolled by applying a low level at the TI input or a high level at the SL input. Function are implemented with very few interface components. If the sensor is touched momentarily (50ms to332ms), lamp is: (a) Turned off if it was on. (b) Turned on if it was off.