hi, i am using the NXP PCA9451A and i try to figure out how i can (and if it can done at all) to operate buck 3 as a standalone converter and not as part of the dual phase with buck 1.
buck 1 work great when i disconnect it for buck 3 (j36 on EVK) but buck 3 wont work (and i checked the remote sense config).
thanks.
hi, (answering from my newer user) i did connected the R_SNSP3_CFG pin to BUCK3 output? By setting the J30 to 2-3 position. and also removed J36 that connect the converters but still there is no output voltage at BUCK3, only in BUCK1.
* input power is ok (3.3V)
*there is valid communication with the computer
* the rest of the converters work well
there is something i am missing?
Hi Dan,
yes, the PCA9451A support BUCK1 and BUCK3 single-phase configuration. To avoid misunderstanding, please confirm, have you connected the R_SNSP3_CFG pin to BUCK3 output? By setting the J30 to 2-3 position. The remote sensing.
With Best Regards,
Jozef