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TCAN1044A-Q1: Searching TI solution

Kygo Cheng
Expert 6830 points
Part Number: TCAN1044A-Q1

Hi Team,

There is a good new that we could DIN TI product!

Customer is looking for the replacement of NCV7344D13R2G (P2P would be better )

NCV7344-D (1).PDF

  • 0
    TI__Mastermind 47895 points

    Hi Kygo,

    I agree that TCAN1044AV would be the best suitable replacement here. ODP: TCAN1044AVDRQ1 to support Vio (pin 5), SOIC. 

    It looks to me that these devices are P2P. Is there something you see that suggests otherwise?

    Regards,
    Eric Schott

  • 0 in reply to Eric Schott1
    TI__Expert 6830 points

    Hi Eric 

    Thank you for your reply!

    More question,

    The current design requirements of customers are as follows
    1. Power pin should be connected to Battery.
    2. When ACC off, the radar system goes to sleep and dark current should be below 100 uA. (This is for TDA4 project)


    Please help provide full design reference or system architecture information related to TCAN1044 wake-up function,
    and I will recommend to customers, THX

  • 0 in reply to Kygo Cheng
    TI__Mastermind 47895 points

    Hi Kygo,

    Most 8-pin CAN transceivers such as TCAN1044A require a 5V supply in order to drive the CAN bus. Such devices cannot be connected to battery level (>6V). This 5V supply will also need to be active in order for wake up detection to be enabled. This solution requires that the MCU be in a low-power mode (not off) in order to recognized the RXD indicator from the transceiver. 

    What you describe sounds more like a solution offered by a 14-pin CAN transceiver like TCAN1043A. This device can be powered off of Vbat (up to 40V) while in Sleep mode. When a wake signal is recognized, TCAN1043A has a battery-level INH output that can enable a voltage regulator. This allows the local MCU to be completely powered-off in the node's sleep mode with only the transceiver partially active (~5uA). Does this sound like a possibility for this design?

    Regards,
    Eric Schott