Hi,
I am supporitng industrial customer in Japan, customer needs isolated 26V/30mA and 5V/20mA from Vin 24V which ranges 20.8V to 28.8V.
I am considering using TIDA-00129 which is similar design and I can use this with minor changes.
Based on this design, I have concern about output voltage accuracy, because the accuracy of 26V requires +/- 100mV Vpp ripple.
In this design, since this is primary-side regulation, I would like to use secoundary-side regulation by using optocoupler to get more accuracy.
Can we use the FB pin that receves feedback signal from secoundary side via optocoupler?
Best Regards
Naoki Yada