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On Application Note AN5114 Controlling a Triac with a phototriac, at page 6/27, Section 2.4, it is mentioned that adding RGK is to reduce spurious triggering of power Triac at high temperature. Is there a chart plotting chance of occurrence vs temperature

SXAw
Associate

‎2022-12-19 04:27 PM

Full note below:

"At last, a resistor RGK between gate and A1 (this terminal is still also called “cathode�? as a reference to a Triac

formed by two SCR) finalizes the drive circuit. Its purpose is to reduce spurious triggering of the power Triac

caused by dV/dt occurring at high temperature."

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