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MUX36D04: More robust ESD protection

Lindsey Fike
Intellectual 2200 points
Part Number: MUX36D04
Other Parts Discussed in Thread: TPD1E10B09, TPD1E05U06

Hello, 

I need help with a recommendation for addition ESD for a MUX36D04 design. 

The mux doesn’t appear to be particularly robust by itself, which is fine, but it will be subjected to up to 30 kV air/contact discharges, the latter going through a 1 Mohm 0805 resistor. Is there any TVS solution you can recommend to protect the MUX input, preferably something in a small package? 10 kV contact, 20 kV air is our minimum requirement, but 30 kV contact/air is preferred. The max operating voltage on the MUX input will be about 7V, and the signal is a DC voltage, so bandwidth (parasitic capacitance) doesn’t matter.

Thanks!

  • 0
    TI__Expert 5660 points

    Hi Lindsey,

    I think this is a great question for the Interface forum, so I'm referring this question to that team to help find a TVS solution for you.

    In the meantime, what is your application where more robust ESD protection is needed? You can try using the device parametric search to narrow down choices based on features and requirements.

    Best regards,

    Kate 

  • 0 in reply to Kate Dickson
    TI__Genius 12410 points

    Hello,

    For ESD devices the DC max operating is not the key care about but rather the clamping voltage of the ESD device.

    Please see the training on choosing an ESD device here

    As far as siingle channel ESD diodes that have greater than 7V breakdown we have the TPD1E10B09. However if you would want an ESD diode with a VRWM of 5.5V the nwe have TPD1E05U06.