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TIDA-01093: CAN transceiver,supply voltage 3.3V

Part Number: TIDA-01093
Other Parts Discussed in Thread: ISO1050, LM25018, , BQ76930, BQ76940

Dear TI experts,

As is shown in reference design(tida-01093), the supply voltage of iso1050 CAN transceiver is 5V, so LM25018 regulator is needed to offer the voltage.

I wonder if I could use a CAN transceiver whose supply is 3.3V. In this condition,the LM25018 is no longer necessary. the can transceiver is powered by bq76930 or bq76940.

Is this design feasible?Or are there some problems in the design?Why do your experts design the reference design in that way?

I wish your early reply.

Thanks & Best Regards

  • Hi User,
    The ISO1050 isolation was viewed an important feature for the design and was one factor in its selection. Check your requirements and check the supply requirements for you CAN transceiver and consider the system architecture. I don't recall if TIDA-01093 allows turn off of the 5V. If your transceiver requires a small enough current you may not need the regulator, you can add load switches if needed to reduce power when allowed.
  • thanks,I will check them.