Hello, TI community!
I would like to use UCD 9248 as controller for several phase solution with IR 3550.
I have few issues to fully understand how to "put" them together.
1) How to correctly connect IOUT (from IR3550) with CS(UCD). IR part gives voltage, that is referenced to REFIN pin and the potential difference on CS+ ans CS-. But UCD expects to receive signal from UCD 7231 or similar device. So the first question would be, how to connect them (trough resistors/capacitors?) and second, what should I adjust in Fusion GUI.
2) Voltage output. I have understood that UCD reads output voltage directly form output trough EAP and EAN pins. How I can correctly relate output voltage to IR 3550 REFIN pin? Directly from output or from EAP?
3) Do I need to use SRE pin to connect it to BBRK#? SRE shuts down the lower FET in UCD devices, and BBRK# shuts down both MOSFETS, when SRE (or BBRK#) is low.
I will be very thankful for answers to my questions. Without them I'm stuck..
Thank you!