Hi Team,
Customer uses our EVM for testing 2 cases, each condition is like below.
For case2 customer wants to know if any possible reason it seems early triggering OCP, thx!
case1:
VREF = 1.617v
Rshunt = 3.5
PWM 20kHz
duty: 62% reaching OCP
SO = 1.5v
=> calculation match
case2:
VREF = 1.617v
Rshunt = 3.5
PWM 40kHz
duty: 42% reaching OCP
SO = 0.98v
=> calculation not match
Andrew