Hi Expert,
My customer is using TCAN4550-Q1 in their new PEPS platform. Right now, they are designing the schematic. I have two questions would like to check with you.
- Vccout of TCAN4550-Q1 have total available current of 125mA. I would like to check if customer can use Vccout as a MCU 5V power supply? The max current consumption of MCU is ~25mA. Is it feasible?
- If there have some CAN BUS shorted fault happen, the internal LDO will have current limit capability. Does Vccout still can keep 5V output when LDO current limit is trigger by CAN BUS shorted fault?
- Customer's system requirement: 'When CAN device enter sleep mode, customer can use INH pin to disable the EN of DCDC/LDO to turn off 3.3V. And when leave sleep mode, CAN device can wake up the MCU'. Due to the limited GPIO resource of MCU, so customer would like to save the GPIO resources as much as possible.
- Question is that, customer would like to NC NINT pin. So for the interrupt function, does customer can also monitor all the interrupt flag through the SPI?
Thanks!
Ethan Wen