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INA4235: Inquiry on Automotive-grade Version of INA4235 and Alternative Options

WooJin Lee
Prodigy 20 points
Part Number: INA4235
Other Parts Discussed in Thread: INA4230, INA3221-Q1, INA238, INA228, INA237, INA226-Q1

Tool/software:

Dear TI Team,

I understand that the INA4235 is currently offered as a catalog-grade device. However, our application requires an Automotive-grade (AEC-Q100 qualified) solution. I would like to inquire about the following:

  1. Is there an Automotive-grade version of the INA4235 currently available or under development?

  2. If not, is there a roadmap or future plan to support an Automotive-qualified version of this device?

  3. Additionally, could you please recommend alternative devices that are AEC-Q100 qualified and support a common-mode voltage range of at least 36V?

Your guidance would be greatly appreciated.

Best regards,

  • 0
    TI__Mastermind 26195 points

    Hello  WooJin,

    Here are my responses to your questions:

    1,2: An automotive version of this device is planned, but I do not have a timeline for it.

    3. Here is a list of all our devices that are automotive that work at 36V and higher:

    https://www.ti.com/amplifier-circuit/current-sense/products.html#1498=Automotive&726max=36%3B120&

    Here is a list of devices that work at 36V and higher, but are also digital power monitors:

    https://www.ti.com/amplifier-circuit/current-sense/products.html#1498=Automotive&726max=36%3B120&-3=Digital%20power%20monitors&

    Regards,

    Mitch

  • 0 in reply to Mitch M
    TI__Genius 16430 points

    Hello WooJin,

    I need to correct one comment that Mitch made - we are planning on an automotive version of the lower accuracy INA4230.  We are not planning on the INA4235 to be released as an automotive option.

    There is not a schedule yet for the release as first we need to move from the WCSP to a QFN. That effort is still pending.

  • 0 in reply to DHarmon
    Prodigy 20 points

    Thank you for the clarification.

    Given that the QFN transition is still pending, we understand there is no official release schedule yet. However, would it be possible to get a very rough estimate (e.g., mid/late 2025, or later)? This would help us decide whether to wait for the automotive-grade INA4230 or proceed with an alternative.

    We’d also appreciate any internal milestones you might be able to share (e.g., package sampling or Q100 qualification target quarter).

    Best regards,
    WooJin

  • 0 in reply to Mitch M
    Prodigy 20 points

    Dear Mitch,

    Thank you for your prompt response.

    Our application requires monitoring of 18 channels individually. To reduce PCB space and interface complexity, we have been considering the INA4235 or INA4230. However, since these devices are not Automotive Grade, we are looking for Automotive Grade alternatives.

    Could you please recommend any Automotive Grade devices capable of monitoring at least 3 channels? It would be ideal if they support up to 36V, as our application is in the commercial vehicle range.

    Your guidance would be greatly appreciated.

    Best regards,
    WooJin

  • 0 in reply to WooJin Lee
    TI__Mastermind 26195 points

    Hello WooJin,

    The only multi-channel automotive digital power monitor we have right now is the INA3221-Q1. However, this device only has 4 address options, so you would either need an I2C address expander, or a second I2C bus in order to reach 18 channels. Also, this device is only supports up to 26V.... You may be better off going with one of the single channel devices that can support 16 addresses, though you would still need the expander or second I2C bus (INA228, INA238, INA237)

    Regards,

    Mitch

  • 0 in reply to Mitch M
    Prodigy 20 points

    Thanks for the reply.
    I was initially considering multi-channel digital power monitor ICs to reduce both component count and board space. For now, I plan to use the INA226-Q1 for general VBAT monitoring, and was looking to apply a multi-channel solution for monitoring other power rails.

    By the way, could you please share any rough information about the INA4230 Automotive roadmap? For example, whether it's planned for release later this year or in a specific quarter next year?

    Best regards,
    WooJin

  • 0 in reply to WooJin Lee
    TI__Mastermind 26195 points

    Hello WooJin,

    DHarmon may be able to share more info on this (not sure). He is out of the office today, but I will message him so that he knows to come and respond when he returns. 

    Regards,

    Mitch

  • 0 in reply to Mitch M
    TI__Genius 16430 points

    The non-automotive QFN is expected to be releasing late this year.

    We will be moving to a wettable flank QFN for the automotive release.  I would expect the automotive version to be a mid-2026 release.

  • 0 in reply to DHarmon
    Prodigy 20 points

    Thank you for the update.
    We will plan accordingly based on the expected timelines — targeting the non-automotive QFN for late this year and the automotive wettable flank QFN around mid-2026.
    Please keep us informed if there are any changes to the schedule.

    Best regards,

    WooJin