Other Parts Discussed in Thread: LM3421
Hi, TI Support Team
OVP is not working properly.
Please review the contents below.
Applicaton: LOWBEAM HEADLAMP
TOPOLOGY: BUCK-BOOST
VIN : 10~36V
VLED: 17V
ILED: 1A
OVP TARGET: VIN + VLED: 17 + 36 +2V (margin) = 55V
Even if I changed ROV1 and changed from 549K which is TARGET to 432K, it did not enter.
It is implemented in the way of FLOATING OVP, and OVP does not enter the 2HZ specified on the data sheet.
There seems to be a part in our circuit that needs debugging, so please review it.
Thanks.
Regards,
MJ