I have problems with the gate driver for IRF40R207

[wph1995]

I am designing a peltier controller, I will use a MOSFET h-bridge for this.
I have been reviewing many data sheets and I have a doubt, I don't know which of these gate drivers to use.
These are the options I would like to use:

a.- 2ED2103S06F
b.- WCDSC006.

I will place 4 N-MOSFET, IRF40R207, on the h-bridge.

I will use a microcontroller from the XMC1400 family that works with 5V for the PWM and the PWM will have a frequency of 5KHz, and calculate that I need a gate resistance of approximately 80 Ohms. I want to use a 12V power supply with the 2ED2103S06F, but I'm not sure if it will turn on the MOSFET fast enough running at 5KHz (it's a relatively low frequency but it's the first time I've worked with infineon's drivers) or maybe it would be better use a WCDSC006 and use a 5V supply, but according to the graph of the IRF40R207 it can handle approximately 12A with a VG of 5V, but the pelier cell that I will use consumes 8.2A and I do not think it is good that the mosfet controls a very close maximum current to the load current.
thanks for your help

[vigneshkumar · Accepted solution]

Hi

Thanks for Posted on Infineon Community,

WCDSC006 will not be the Right choice for IRF40R207. Rds(on) will be twice at 5V Vgs while compare with 12V.

2ED2103S06F – This can be used For the selected Rg. It can support the Max drive current.

Rg(80ohms) value is higher , That will increase Eon and Eoff losses.

In the case of Changing Rg will demand driver change.

Please contact us for further driver selection.

Regards,

Vignesh kumar.