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Problem with UCC27532EVM

Other Parts Discussed in Thread: UCC27532

I am using UCC27532EVM-538 to drive a SiC MOSFET. There are tow input voltage sources 10 V and 12 V and PWM as high and Low. I did exactly what the data sheet explain. I used 2 different sources, one of them to generate 10 V and the other for 12V. To generate the PWM signals I used many ways(Function Generator, or Microcontroller) to generate 0(LOW)-5 V (HIGH)

The input PWM as the datasheet in page 5, High MIN=2.75, and HIGH MAX=5.5V

I have found that it WORKS only if the High PWM is more than 9 V Please let me know for further information

Please if you face the same problem, advise me what to do