Other Parts Discussed in Thread: UCC256301, UCC25640
Hello,
My customer Nestle needs to switch from the UCC256301 to the UCC256402 due to delivery issues.
They tested the '6402 in their exisitng design and observed higher temperature on the transformer due to higher frequencies(?).
Can you pinpoint us the needed schematic changes?
Test Conditions: Input Voltage 230V AC, Output 24V DC@ 4 Amp Continuous Load
UCC25630 – 1 |
UCC25640 – 2 |
Temperature of the transformer |
Temperature of the transformer |
Waveform Across Primary Winding – 64 k Hz
|
Waveform Across Primary Winding – 85 k Hz
|
Thank you,
Ambroise