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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1409140/ucc28711-flyback-startup-problem
工具与软件：
在我的上电后设计中、Vdd 电压在8.1V 至21V 之间波动、MOSFET 永远无法开始开关。 导致此行为的原因可能是什么？解决此问题的最佳方法是什么？
您好、IgorR
感谢您联系我们。
IC 很可能会重新启动、因为它遇到了故障。
请参阅以下调试指南、这些指南对于调试过程可能有帮助。
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/508706/trouble-shooting-startup-issues-with-ti-psr-flybacks-ucc28700-ucc28701-ucc28702-ucc28703-ucc28704-ucc28710-ucc28711-ucc28712-ucc28910-ucc28911-ucc28720-ucc28722-etc?tisearch=e2e-sitesearch&keymatch=UCC28712
https://www.ti.com/lit/an/sluaac5/sluaac5.pdf?ts = 1725511561023&ref_url=https%253A%252F%252Fwww.google.com%252F#:~:text=The%20input%20bulk%20capacitor%20CIN,will%20cause%20a%20UVLO%20fault。
此致、
Harish
Harish、您好！
我想私下与您分享我的原理图、以加快故障排除速度。 我们与 TI 签订了 NDA。
尊敬的 IgorR：
请将原理图发送至 harish.ramakrishnan@ti.com
