I guess switched these should take upto 500A for < 50ns Edit: looked at the datasheet. They are pretty awesome devices. Can handle 1700+ A when pulsed at 10ns. The thermal conductivity is a figure I'd never thought I'd see in datasheets. Nice one.
Very clear and compelling demonstration, thank you! Where can the mounting base (heavy copper board for wire interfaces and MOSFET solder mounting) be found?
Excellent current handling in linear mode but finding mosfets with extended forward bias safe operating area where the application requires operation in the resistive zone is a bit of a challenge , assuming I'm correctly interpreting the safe operating area graphs that is , for a Vds up to 24V the Ids continuous is roughly 2 orders of magnitude below that of linear mode operation. Impressive illustration of current handling , the glowing wires are a great visual .
Is that bus bar setup that the MOSFET mounts to and the drain and source hook onto something that can be purchased? This looks like the only way to reliably use that much current through this
Thanks for the question, @jacobwatts169. The two boards are part of power supply designed to provide high current; any power supply source capable of providing the necessary current can be used here.
Is the 200 A continuous or RMS?? Are you using a standard AC amp meter or does it measure DC field flux density?? As an electrician and using #4/0 wire to handle 200 A at 80% duty cycle, I have difficulty wrapping my brain around such a small device and terminals handling so much current. I want to power 4 motors of 36 ampere at 36 volts each motor. I would expect the TO-220 package to only handle 12 ampere continuous?? If the TO-220 package are rated at 80 A, can I get away with using only one MosFET per motor?? Since I am using 18,000 CPS +, I am using Shottky diodes to protect the MosFETs. Maybe I am being picky, but I am using high frequency cycle above the hearing levels to eliminate the audio noise of the electric components. I am powering the MosFETs with a PWM. Do I need to keep each motor on a separate circuit or can I parallel the MosFETS and have all 4 motors draw the 144 A through one MosFET circuit?? I had a bad heart attack and my memory has big holes in it like Swiss cheese. I would appreciate some clarity. I contacted a couple MosFET manufacturers and could not get straight answers. They gave me the run around. If you can help and answer all my questions, I would simply use your electronics.
Thanks for the question, here's our engineer's response - Sub-milliohm on-state resistance in advanced MOSFETs is common, this Nexperia MOSFET is 0.5mΩ and as such can handle 100s of Amps. The handling of these high level of current requires careful cooling mechanism, in this case thick copper clad was used. The challenge to deal with these high levels of currents / powers is on the boards used to extract heat quick enough and the bigger the MOSFET package the easier to extract heat (assuming same RdsON). As for driving motors separately or combined in one parallel design will depend on many factors - driving them separately will be simpler and safer. This demo is specific to the MOSFET capability as standalone device, for high current motor application please visit Nexperia site for “motor demo” ua-cam.com/video/-pfrP-8krKU/v-deo.html&ab_channel=Nexperia
Thanks for the question. The VDS is dependent on current and RDSon i.e. I*R, and is of no relevance to this test. The test here is demonstrating the capability of the device on its handling of high current ID (the VDS would be the result of that current and the RDSon at that temperature).
To switch a MOSFET at 200V, a MOSFET with the appropriate voltage rating must be used and depending on the application the rating will differ. There are many considerations to consider, but to start with, the safe operating area of the MOSFET (which can be found in its datasheet) would be able to tell you what voltages and current the MOSFET can safely switch at.
is there an application sheet on how to design a practical PCB to route 400A into such a tiny package or should we solder it directly to solid copper bus bars?
Hello @jobsjamaica9388, The voltage in question is VDS (drain source voltage) since the MOSFET is fully enhanced. The device being 0.5 mΩ with 380 A results in the voltage needed to be 0.19 V (I*R) you can set the PSU to 2 V - 5 V to give enough margins to cater for cable and load impedances.
good deal; and dissipating 72 watts too, at those crazy 380 Amps in such a small package; will it also survice on an aluminum cooler, or will it always need a copper pad in between? @@Nexperia
Thanks for the question, @josepeixoto3715. Our engineer gave the following reply - Any heatsink capable of maintaining constant temperature of ~25C - regardless of material will achieve these results.
@@Dc_tech386 The device used is PSMNR51-25YLH. Please refer to the safe operating area (Fig3) in the datasheet found at the link in the description where details of the capability for all voltages against current is given.
Hello. It depends greatly on the welding machine design. Suitability of MOSFETs will depend on their implementation in the design, here we are showing the high current capability of our MOSFET, but other parameters such as VDS requirement are also necessary. Thanks!
Sorry, that will fail in may case and I have the same respond from all it mean lake of experience in practical use. Using 12-24V DC you can paralleling as much you can but not in my case.
I lost hundreds dollars on research power mosfets to run 240V AC 8 A with 0.018 100A mosfet and watch when in 1 hr heat up to 100 C so where is there solutions?
Hello, Nexperia specializes in low voltage (≤200V) power MOSFETs ad therefore we can’t advise on 240V products. However, to help with your application consider paralleling MOSFETs, optimize layout to dissipate heat and select the right PCB/heatsink.
Amazing that those small legs are holding up so well
I guess switched these should take upto 500A for < 50ns
Edit: looked at the datasheet. They are pretty awesome devices. Can handle 1700+ A when pulsed at 10ns. The thermal conductivity is a figure I'd never thought I'd see in datasheets. Nice one.
Seeing....still having trouble believing.
Truly 21st century technology.
How does this small Fet can handle so much current without a propper heatsink?Unbelievable!Cool!
Very clear and compelling demonstration, thank you! Where can the mounting base (heavy copper board for wire interfaces and MOSFET solder mounting) be found?
Excellent current handling in linear mode but finding mosfets with extended forward bias safe operating area where the application requires operation in the resistive zone is a bit of a challenge , assuming I'm correctly interpreting the safe operating area graphs that is , for a Vds up to 24V the Ids continuous is roughly 2 orders of magnitude below that of linear mode operation.
Impressive illustration of current handling , the glowing wires are a great visual .
This is what quality content 😊
Is that bus bar setup that the MOSFET mounts to and the drain and source hook onto something that can be purchased? This looks like the only way to reliably use that much current through this
Hello, thanks for your question! This is an off the shelf buy, it can be bought from the likes of RS components.
I guess These are great for VRMs of High End Motherboards..
What are the two boards connected in parallel on the left half? Are they DC to DC converters?
Thanks for the question, @jacobwatts169. The two boards are part of power supply designed to provide high current; any power supply source capable of providing the necessary current can be used here.
Is the 200 A continuous or RMS?? Are you using a standard AC amp meter or does it measure DC field flux density?? As an electrician and using #4/0 wire to handle 200 A at 80% duty cycle, I have difficulty wrapping my brain around such a small device and terminals handling so much current. I want to power 4 motors of 36 ampere at 36 volts each motor. I would expect the TO-220 package to only handle 12 ampere continuous?? If the TO-220 package are rated at 80 A, can I get away with using only one MosFET per motor?? Since I am using 18,000 CPS +, I am using Shottky diodes to protect the MosFETs. Maybe I am being picky, but I am using high frequency cycle above the hearing levels to eliminate the audio noise of the electric components. I am powering the MosFETs with a PWM. Do I need to keep each motor on a separate circuit or can I parallel the MosFETS and have all 4 motors draw the 144 A through one MosFET circuit??
I had a bad heart attack and my memory has big holes in it like Swiss cheese. I would appreciate some clarity. I contacted a couple MosFET manufacturers and could not get straight answers. They gave me the run around. If you can help and answer all my questions, I would simply use your electronics.
Thanks for the question, here's our engineer's response - Sub-milliohm on-state resistance in advanced MOSFETs is common, this Nexperia MOSFET is 0.5mΩ and as such can handle 100s of Amps. The handling of these high level of current requires careful cooling mechanism, in this case thick copper clad was used. The challenge to deal with these high levels of currents / powers is on the boards used to extract heat quick enough and the bigger the MOSFET package the easier to extract heat (assuming same RdsON). As for driving motors separately or combined in one parallel design will depend on many factors - driving them separately will be simpler and safer. This demo is specific to the MOSFET capability as standalone device, for high current motor application please visit Nexperia site for “motor demo” ua-cam.com/video/-pfrP-8krKU/v-deo.html&ab_channel=Nexperia
What is the Vds in this setup?
Thanks for the question. The VDS is dependent on current and RDSon i.e. I*R, and is of no relevance to this test. The test here is demonstrating the capability of the device on its handling of high current ID (the VDS would be the result of that current and the RDSon at that temperature).
Hallo mein Freund
Ich will bei 200 V Max. 10A schalten.
Es dürfen also nicht mehr als 10A fließen.
Wie mache ich das?
Danke, Grüße Helmut
To switch a MOSFET at 200V, a MOSFET with the appropriate voltage rating must be used and depending on the application the rating will differ. There are many considerations to consider, but to start with, the safe operating area of the MOSFET (which can be found in its datasheet) would be able to tell you what voltages and current the MOSFET can safely switch at.
@@Nexperia Danke sehr. Grüße Helmut
is there an application sheet on how to design a practical PCB to route 400A into such a tiny package or should we solder it directly to solid copper bus bars?
Hello, thanks for your question. Our advice is to solder directly to the solid copper bus bar, making sure 25C is maintained.
I wondered at what voltage is it working at that high temperature
Hello @jobsjamaica9388, The voltage in question is VDS (drain source voltage) since the MOSFET is fully enhanced. The device being 0.5 mΩ with 380 A results in the voltage needed to be 0.19 V (I*R) you can set the PSU to 2 V - 5 V to give enough margins to cater for cable and load impedances.
good deal;
and dissipating 72 watts too, at those crazy 380 Amps in such a small package;
will it also survice on an aluminum cooler, or will it always need a copper pad in between? @@Nexperia
Thanks for the question, @josepeixoto3715. Our engineer gave the following reply - Any heatsink capable of maintaining constant temperature of ~25C - regardless of material will achieve these results.
Hi, what is the type (ie: Cr-Al / Cr-Ni....) and thickness of heater wire you use here ?
Hello! Thanks for your question. The wire alloy is NiCr (Nichrome wire) and the thickness for this specific demo is 2 mm diameter.
So in liner 5v 190 is 960watt this is crazy wattage for one mosfet
Our engineers have confirmed that the MOSFET is fully enhanced and VDS is around 200mV.
@@Nexperia but my question is can this mosfets conduct 190 at full rated voltage
@@Dc_tech386 The device used is PSMNR51-25YLH. Please refer to the safe operating area (Fig3) in the datasheet found at the link in the description where details of the capability for all voltages against current is given.
Hi can you share the schematic to turn on the mosfet?
Hello, there are various drivers out there and it is subject to application, but for this instance the MOSFET driver used is TC4422CPA. Thanks!
Are they suitable for tig welding machines ?
Hello. It depends greatly on the welding machine design. Suitability of MOSFETs will depend on their implementation in the design, here we are showing the high current capability of our MOSFET, but other parameters such as VDS requirement are also necessary. Thanks!
Sorry, that will fail in may case and I have the same respond from all it mean lake of experience in practical use. Using 12-24V DC you can paralleling as much you can but not in my case.
I lost hundreds dollars on research power mosfets to run 240V AC 8 A with 0.018 100A mosfet and watch when in 1 hr heat up to 100 C so where is there solutions?
Hello, Nexperia specializes in low voltage (≤200V) power MOSFETs ad therefore we can’t advise on 240V products. However, to help with your application consider paralleling MOSFETs, optimize layout to dissipate heat and select the right PCB/heatsink.