Other Parts Discussed in Thread: UCC256402, UCC256403
Hello,
I' m currently trying to assemble and (make it work) the TIDA-01494 reference design and I'm facing to difficulties regarding the assembly package. It seems the schematics (from which the BOM is derived) is not up to date regarding to the PCB. I found especially some inconsistencies in part references between schematics/BOM and PCB/assembly drawing:
in the LLC controller region:
- Q14
- Q4
- R14
- C21
- R2
- R25
- C22
- Q13
- Q14
- D12
in the PFC controller region:
- D14
in the inrush limiter region:
- R62
- R63
- R65
- R66
- D8
- C58
(all the above components exist on the PCB but not in the current schematics neither in the BOM)
It would be nice to get the last version of the schematics to figure out what are the modifications applied on the initial design and get a chance of having something working at the end...
In addition to that list, I'm wondering why the R31 R22 R10 series resistors (1K5) are connected from mains voltage to the HV pin of U2 (pin1 of the LLC controller). It seems to be dangerous because in the DS of U2 it is stipulated that this pin should be tied to PGND (not mains !).
Thanks a lot in advance for helping us !
Regards