Tool/software:
Hi team.
Regarding [Current Limit and Short Circuit] of LMR43620-Q1
The formula for calculating the limit current value for overcurrent protection is not in the datasheet
Can I use the formula in the LMR43606-Q1 datasheet?
Or is it in another application note?
Hi Ichikawa,
The HS current limit is ~2.1A. The device will shut off the HS FET if the current exceeds that value.
Thanks,
Andrew
Hi Shoji,
The current limit value is burned into the device at the FAB. There's no way to "go above" or formula that outputs the current limit. This sensor right here turns off the HS FET when it detects that current limit has been tripped.
If VOUT is shorted to ground. The device will attempt to pump out current then when CL is tripped LMR43606-Q1 turns HS FET off.
You can measure it by measuring the inductor current.
Thanks,
Andrew
