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I want to test the overcurrent protection function of the chip, and measured the waveforms at 4A and 3.9A respectively , but the corresponding waveforms are not the same, which one is correct? I saw the data of 13ms and 24us in the technical manual, which period does 24us refer to?![]()
4A 3.9A
Hi
Both are correct. As with time goes on, the temp will increase, cause the Rds_on higher, so you can see some difference. As the current detection is based on Voltage of the Fet.
Shuai