UCC21520: VDDA或VDDB欠压恢复时间过长

UCC21520的欠压恢复时间是多少？当UCC21520的VDDA或VDDB达到欠压恢复阈值后多久才会输出PWM？

Johnsin Tao：

HI

    见datasheet 第17页：  7.5 Power-up UVLO Delay to OUTPUT

    Before the driver is ready to deliver a proper output state, there is a power-up delay from the UVLO rising edge to output and it is defined as tVCCI+ to OUT for VCCI UVLO (typically 40us) and tVDD+ to OUT for VDD UVLO (typically 50us).