AN2986 AC开关触发3.3 V电源供电

AN2986 AC开关触发3.3 V电源供电

AN2986
Application note

AC switch triggering with 3.3 V power supply

Introduction
This document focuses on the calculation of gate current consumption of various types of
AC switches when using a 3.3 V power supply. Until now, the standard of a 5 V power supply
was used. In home appliance applications there is a bigger focus on the MCU working with
a 3.3 V power supply, and a lower supply voltage brings additional constraints on gate
circuitry. This application note provides a precise calculation process in order to correctly set