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TPD1E01B04: how to relate 2.5A of TPD1E01B04 with the standard IEC 61000-4-5 Surge values

bhanu prasad2
Prodigy 10 points
Part Number: TPD1E01B04

Hi 

we are using TPD1E01B04 for ESD and surge protection of  USB 3.0, USB 2.0, SATA ,Ethernet interface & Power line.

IEC 61000-4-5 Surge Protection – 2.5 A (8/20 µs) is the specification  as per the datasheet of TPD1E01B04.

But as per the standard IEC 61000-4-5 currents are very high upto 2000A (source impedance=2 ohm) for power lines & 96A(source impedance=42 ohm) for signal lines.

I could not able to understand how i should this 2.5A with the standard values.

{we chosen this because of it has    VBRF=6.4 V ,VRWM=+/–3.6 , low CL , high bandwidth and is recommended solution for above interfaces as per the ti  ESD selection guide}  

will this IC help me in passing TPD1E01B04  { IEC 61000-4-2,IEC 61000-4-4 and IEC 61000-4-5 } all are at high levels.IF no can you suggest me an alternate option in meeting listed standard.

thanks

Bhanu 

  • 0
    TI__Genius 12410 points

    Hello,

    This device can handle small surges of 2.5A. If you want to go to the levels specified in IEC61000-4-5 you will need a much bigger device to dissipate that energy and it would not be able to sit on the USB lines.

    This device is mostly for ESD protection with a little bit of surge protection. If you are wanting 96A worth of surge protection you will need to go to an SMC TVS diode or varistor.