Other Parts Discussed in Thread: UCC27201A, LM5109B-Q1, UCC27211A-Q1
Hi Team,
One of our customer is using UCC27201A-Q1 and getting IC failure during operation .UCC27201A-Q1 HB and HO pins are short with 14E resistance. We suspect the usage high bootstrap capacitor value used in the circuit, can you please help with some design documents for the same and also please share other possible reasons leads to this failure. The design is to drive a BLDC motor switching at 6Khz frequency with minimum 35% duty cycle and with maximum of 85% duty cycle. Attached is the schematic of driver stage for your quick reference.
Can you please help with your quick thoughts to rectify the issue. Thanks in advance for your help and support.
With Regards,
Shinu Mathew.