TCA785 データシートの表示（PDF） - Infineon Technologies

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TCA785

Phase Control IC

Infineon Technologies 

TCA 785

Application Examples

Triac Control for up to 50 mA Gate Trigger Current

A phase control with a directly controlled triac is shown in the figure. The triggering angle of

the triac can be adjusted continuously between 0˚ and 180˚ with the aid of an external

potentiometer. During the positive half-wave of the line voltage, the triac receives a positive

gate pulse from the IC output pin 15. During the negative half-wave, it also receives a positive

trigger pulse from pin 14. The trigger pulse width is approx. 100 µs.

Semiconductor Group

13

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