powersys
Advanced Member level 1
Hi...
Found the following post: https://www.edaboard.com/threads/166905/#post704330
It states that:
I'm building a gate drive circuit for the following power MOSFET, i.e. IRFP4110 (http://www.irf.com/product-info/datasheets/data/irfp4110pbf.pdf). I wish to add a bi-directional TVS (as suggested by Mr. Cool above) in parallel to the gate-source of the power MOSFET. However, I'm confused with the following specification of a TVS:
- Reverse Stand-Off Voltage (VR)
- Breakdown Voltage (VBR)
- Clamping Voltage (VC)
According the datasheet of IRFP4110, the maximum allowable gate-to-source Vgs is +/-20V. Let's say the Vgs used in my circuit is +15V. Which TVS do you think is suitable for my application? Someone suggested to use a 17V TVS. Is the "17V" the Reverse Stand-Off Voltage, Breakdown Voltage, or Clamping Voltage? Please recommend one (in surface mounted technology package) if you know any of them.
Many thanks.
Found the following post: https://www.edaboard.com/threads/166905/#post704330
It states that:
I use bi-directional TVS instead of a zener for protection because it is just as likely to get positive spikes as it is to get negative spikes.
It is small price to pay for increased reliability.
Mr.Cool
I'm building a gate drive circuit for the following power MOSFET, i.e. IRFP4110 (http://www.irf.com/product-info/datasheets/data/irfp4110pbf.pdf). I wish to add a bi-directional TVS (as suggested by Mr. Cool above) in parallel to the gate-source of the power MOSFET. However, I'm confused with the following specification of a TVS:
- Reverse Stand-Off Voltage (VR)
- Breakdown Voltage (VBR)
- Clamping Voltage (VC)
According the datasheet of IRFP4110, the maximum allowable gate-to-source Vgs is +/-20V. Let's say the Vgs used in my circuit is +15V. Which TVS do you think is suitable for my application? Someone suggested to use a 17V TVS. Is the "17V" the Reverse Stand-Off Voltage, Breakdown Voltage, or Clamping Voltage? Please recommend one (in surface mounted technology package) if you know any of them.
Many thanks.