TPSM8D6B24: Protective ICs for PMBus

Yuta Nishie

Part Number: TPSM8D6B24

Hi,

If I have a case to insert and remove PMBus cables, is there a recommended protection IC to protect the PMBus? I plan to use a protection IC to prevent the spike noise generated during insertion and removal.

Best Regards,

Nishie

2 months ago

+1 Tahar Allag 2 months ago

TI__Mastermind 28740 points

Hello Yuta,

the pins of the device are rated for 5.5V.

ESD diodes can be used for protections for hot plug spikes

https://www.ti.com/lit/an/slvae37/slvae37.pdf?ts=1706069892806&ref_url=https%253A%252F%252Fwww.google.com%252F

https://www.ti.com/interface/circuit-protection/esd-surge-protection-ics/overview.html

https://www.ti.com/lit/sg/sszb130d/sszb130d.pdf?ts=1706074250812&ref_url=https%253A%252F%252Fwww.ti.com%252Finterface%252Fcircuit-protection%252Fesd-surge-protection-ics%252Foverview.html&_ticdt=MTcwODAzNDM2M3wwMTg3ZGUwOWZlMWQwMDQ2OGRjODRiZDVmMmQwMDUwNmYwMDFiMDY3MDBiZDB8R0ExLjEuNzY0NzE0NDUuMTY4MzA1NzQxMHxudWxsfG51bGx8R1MxLjEuMTcwODAzMzQzNC40MDIuMS4xNzA4MDM0MzYzLjAuMC4wfEdTMS4xLjE3MDE3MDQ5OTkuMS4wLjE3MDE3MDUwMjMuMC4wLjB8R1MxLjEuMTcwODAzMzQzMi4zNDIuMS4xNzA4MDM0MzMxLjAuMC4wfG51bGw

Thanks

Tahar

0 Yuta Nishie 2 months ago in reply to Tahar Allag

Genius 3040 points

Hi Tahar-san,

Thank you for your reply.

Could you tell me the recommended parts name for PMBus of TPSM8D6B24?

Best Regards,

Nishie

0 Tahar Allag 2 months ago in reply to Yuta Nishie

TI__Mastermind 28740 points

depends on the voltage you are trying to use, the PMBUS lines should be protect for at least 5.5V. Anything above the voltage you are planning on using on the bus and equal to or below 5.5V should work as long as the Bus capacitance does not get too high. PMBus recommends a bus limit of 400pF.

Thanks

Tahar

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TPSM8D6B24: Protective ICs for PMBus