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TLV840: AC Line Brown Out Protection IC Device from TI

Souheil Slim
Prodigy 80 points
Part Number: TLV840
Other Parts Discussed in Thread: TPS3760, TPS3762

I'm searching for an IC from TI  that provides the AC line brown out protection feature. The device will be used as a supervisory IC to rise a reset signal that will be used to disable an AC to DC power System when the AC line is below typ 190Vac and allow auto restart when the input voltage is above the startup threshold typ 208Vac.

I'm considering using the TLV840 Nano-Power Ultra-Low Voltage Supervisor IC after the Single-Phase Diode Bridge Rectifier. It will provide an adjustable reset time delay ranging from 50msec to 200msec. However, I'm investigating if there is a better suitable component available from TI.

Kind regards.

  • 0
    TI__Genius 9900 points

    Hi Souheil, 

    Thank you for your question. TLV840 is low-voltage supervisor with adjustable-reset time delay. I want to let you know that we have supervisor that can go up to 65V on VDD and sense pin. I think you may need want to check TPS3762, which is one of newest device, and/or TPS3760 since you may find more threshold option. 

    I hope this helps, and please let me know if you need more information. 

    Best Regards,

    Sila Atalar

  • 0 in reply to Sila Atalar
    Prodigy 80 points

    In our application, the customer is asking for a design that is free of complex hardware, in accordance with DO-254.
    Complex hardware refers to complex micro-coded components, ASICS, FPGA, PLD, microprocessors, and similar components.
    Question:
    Are the following items TLV840,TPS3762 and TPS3760 all discrete analog components and are not complex hardware ?

  • 0 in reply to Souheil Slim
    TI__Expert 3190 points

    Hi Souheil,

    That is correct, the devices you listed (TLV840, TPS3762, and TPS3760) are categorized as voltage supervisors or discrete analog components on a more broader level. These would NOT be considered complex hardware based on the definition you provided. Hope this helps!

    Thanks,

    Isa

  • 0 in reply to Isa Chang
    Prodigy 80 points

    We plan to use the (TLV840, TPS3762, and TPS3760) in commercial electronics that go into aircraft.  

    Could you please forward my question to a QA engineer or a dedicated specialist at Texas Instrument who has expertise in the (TLV840, TPS3762, and TPS3760) components to ensure that the (TLV840, TPS3762, and TPS3760) documentation, traceability, design, manufacturing, and testing processes are properly recorded? We want to know which standard is used for this purposes.

  • 0 in reply to Souheil Slim
    TI__Genius 9900 points

    Hi Souheil, 

    I'll check with my team, and get back you on this by the end of this week. 

    Thanks,

    Sila