Hello,
4Vp-p on a 12V input is quite excessive. It's possible that there is an input filter instability. Please provide the following to better assess the circuit operation:
1. Schematic
2. Input voltage oscilloscope waveform (please use a time…
Part Number: PMP20127 Hey,
we used your PMP20127 with some modifications in schematics and PCB. But we getting noise pk-pk upto 1.5V in output at 1.6Amps load and board is also have heating issue. just guide me to resolve this.
Schematics is attached…
Hello Fran,
The only reference designs that I see might fit your application are PMP20127 which has a wide input range from 9Vdc- 125Vdc. I have never seen an Power topology range from 3V to 80V unfortunately and this reference design is the closest…
Hi Gerrit,
Thanks for your interest in UCC2897A. The recommended max voltage of the VIN pin on UCC2897A is 110V with an absolute maximum rating of 120V. If you can clamp Vin externally, yes you can use this device for your application.
You could…
Hello Jean,
A search through our Reference Designs indicates that the LM5022 is used quite often for such a wide-range type of application. Although this part is originally targeted for boost and SEPIC applications, it is also widely used for isolated…
Antonio,
Thanks for connecting through E2E. As a starting point, you can search the TI reference design library here . I was able to find PMP20127 and PMP20196 which are both wide input flyback converters close to meeting the requirements you posted…
Part Number: LM5022 Other Parts Discussed in Thread: PMP20676 , PMP20468 , PMP20127 My customer has a Flyback design based on the LM5022 and is concerned about the oscillation he sees on the SW node after the controller turns off the primary side power…
