LS7231 through LS7234 are MOS integrated circuits de- signed for the control of brightness of incandescent lamps. The outputs of these ICs control the brightness of a lamp by controlling the firing angle of a Triac connected in series with the lamp. All internal Timings are syn- chronized with the line frequency by means of a built-in phase-lock loop circuit. The output occurs once every half-cycle of the line frequency. Within the half-cycle, the output CAN be positioned anywhere between 158conduction angle for maximum brightness and 41 conduction angle for minimum brightness in relation to the AC line frequency. The positioning of the output is con- trolled by applying a low level at the SENS input or a high level at the EXT input. By LSI Computer Systems, Inc.
LS7231 's PackagesLS7231 's pdf datasheet

LS7231 Pinout, Pinouts
LS7231 pinout,Pin out
This is one package pinout of LS7231,If you need more pinouts please download LS7231's pdf datasheet.

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