Part Number:UCC256301
Tool/software: WEBENCH® Design Tools
Hello, I am now trying to ues the LLC controller-UCC256301. Some problems has puzzled me a lot recently:
1/When I impose 15V-VCC and 3V power supply on the Pin3(VCC pin) and Pin-4(BLK pin) respectively, nothing such as low side driving pulse occured, and the voltage level of Pin12(RVCC pin) is always zero. I am wondering WHAT ELSE actions should be taken to get the controller work.
2/If I use the UCC256301 as a controller of a wide range voltage souce(36VDC~110VDC) DC-DC converter, How Should I configure the Pin1(HV pin)? Will it be OK to connect it directly to the Ground?