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LM74501-Q1: Can LM74501-Q1 pass +150V and -450V pulse

PYTsai
Genius 9325 points
Part Number: LM74501-Q1

Hi 

My customer's application is for 24V car, the surge test requirement is  +150V and -450V pulse. 

Can LM74501-Q1 adding some external component pass +150V and -450V pulse test ? 

  • 0
    TI__Guru 57737 points

    Hi PYTsai,

    Can you share more details about the pulses  - time duration of peak voltage, impedance in between the test circuit and the device, etc..

    If we can can clamp the voltages seen at the input of LM74501-Q1 using input TVS or input capacitance or the VDS clamp circuit or a combination of all of these to less than the device Abs Max rating then there should be no issue. 

    Please note that LM74501-Q1 can meet automotive ISO7637-2 pulse 1 transient without additional TVS diode