TVS Protection Solution

Danilo A.

Other Parts Discussed in Thread: ESDS314, ESDS312

Hi Team,

We would like to ask your help regarding the customer's inquiry below.

I need a TVS to protect HDMI signals. The surge that we are trying to suppress is similar to waveform 4 in the MIL-STD-461 G (please refer to the waveform below). 4.6 uS risetime to 100V and then decays to @ 50% in 69uS.

Is a double exponential with risetime of 6.4 uS and fall to 50% in 69 uS. The Vmax. = 100 V. and max. current of 333A. It is a part of the conducted susceptibility 117 (for Lightning), not just for regular ESD

The circuit I need to protect has a absolute max. voltage of 3.6V. The TVS needs to be capable of sustaining @ 1.15 k-Watts for 69 uS.

Regards,

Danilo

over 3 years ago

0 Matt Smith3 over 3 years ago

TI__Expert 8471 points

Hi Danilo,

The closest part we have in our portfolio for this would be either ESDS312 or ESDS314. However, these devices are rated for the IEC 61000-4-5 surge spec which is an 8/20 us waveform. These devices can only withstand 25 A of a 8/20 us waveform, so they will probably not be able to withstand 333 A of a longer 6.4/69 us waveform.

Regards,

Matt Smith

0 Danilo A. over 3 years ago in reply to Matt Smith3

TI__Mastermind 25865 points

Hi Matt,

Thank you very much for your response.

Regards,

Danilo

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TVS Protection Solution