• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 32 subscribers
  • Views 225 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TVS2700: Difference between FET and diode for TVS

Shuji Ishiwata
Mastermind 7035 points
Part Number: TVS2700

Tool/software:

Hi All,

TI's TVS has a FET inside. Other companies' TVS are diodes.
Please tell me the advantages and disadvantages of FETs and diodes as TVS.
I would like to use this as reference for replacing other companies' TVS diodes with TI's TVS.

Best Regards,
Ishiwata

  • +1
    TI__Expert 5290 points

    Hi Ishiwata,

    The following information applies to our TVSxx0x device family, which has a FET based process compared to the rest of our portfolio, which has a diode based process. These Flat-Clamp Devices are intended for power line protection, as the precise surge clamping performance allows for a very advantageous performance compared to other potential protection options. 

    PROS:

    • Near zero RDYN on TVS Flat Clamp allows for a precise, flat clamping performance over the duration of the surge event.

    • Average 50% reduction in space and 30% reduction in cost by eliminating additional passives used for further protection.

    • Closed-loop regulation of the clamp voltage ensures a fixed voltage across temperature, meaning a minimal derating over temperature.
    • Much smaller footprint compared to SMx packages, allows for over 75% area reduction from SMB package.

    CONS:

    • FET-based process is typically more expensive than diode-based process.
    • Cannot be used on high speed data lines due to capacitance values.

    Please let me know if you have any questions!

    Best Regards,

    Josh Prushing