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Inquiry regarding minimum cathode current on TL431AQDCKR and TLVH431AQDCKR

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Hello, all

Now we have one inquiry regarding minimum cathode current on TL431AQDCKR and TLVH431AQDCKR from our customer.

Please refer to the item below, and feedback us with your comment.

When referring "RECOMMENDED OPERATING CONDITIONS" on each datasheets, the minimum cathode current (IK) is described as 1.0mA for TL431A and 0.1mA for TLVH431A.

Please let us clarify whether these values have any tolerance on whole temperature range (-40~+125C).

We thank you in advance for your information. 

Best regards,

  • Atsushi-san,

    The 1mA recommendation for TL431AQDCKR includes the whole temperature range.

    The 0.1mA recommendation for TLVH431AQDCKR does not include high temperature effects.
    For 125C, 0.15mA minimum is recommended.

    Regards,
    Ronald Michallick
    Linear Applications

    TI assumes no liability for applications assistance or customer product design. Customer is fully responsible for all design decisions and engineering with regard to its products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning Customer's design. If Customer desires engineering services, the Customer should rely on its retained employees and consultants and/or procure engineering services from a licensed professional engineer (LPE).

     

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