LM5023又是只导通几10ms就判断

这是啥电路？你的原理图呢？

After allowing VCC to charge and discharge four times, the LM5023 goes through an auto restart sequence,
enabling the LM5023 soft-start and driver output. It is important to set the over load detection timer long enough
so that under low input-line and full-load conditions that the power supply will have enough time to start-up.
The over load detection timer can be set with the resister in series with the VSD pin VSD), refer to Figure 9.
这是说过载计时器时间要多长为好？有没有参照对像？

Hi
大部分的计算datasheet中都是有的啊