Developing BLDC motor driver! Suggest MOSFET'S in KCS/To-92

Darhmendra, 

The most important question in selecting the FET will be what kind of breakdown voltage do you need. What voltage rail is the motor running on? 

Also, I assume the 4A of current is a typical value. What is the most this could spike up to? 

For a current this low, you probably don't need a TO-220 (KCS) device. Any reason you were leaning that direction?

hey Bertt,

I got it what u want to convey. Now I am here with the research.

For N channel Mosfet

Drain-Source Voltage VDS =100 V

Gate-Source Voltage VGS = ± 20 V                                                                                                                        

Continuous Drain Current ( at V(gs)=10V ) is ID  = 14 A.                                                                                            

Pulsed Drain Current   I DM = 50A

For P channel Mosfet

Drain-Source Voltage VDS =-100 V 

Gate-Source Voltage VGS = ± 20 V                                                                                      

Continuous Drain Current ( at V(gs) =  -10V ) is ID  = -14 A.                                                        

Pulsed Drain Current   I DM = -50A

....... if u suugest me mosfet of these specificetions.... then package doesn't maytter..

Thanks                                                                                                                                                                        

Dharmendra Sharma 

India

hey Brett

:) , found N type mosfets... http://www.ti.com/product/csd19501kcs

BUT don't able to find P channel mosfet.

if u could.

Thanks 

Dharmendra Sharma

INDIA

Dharmendra,

Unfortunately, we do have any higher voltage MOSFETs at this time. The highest voltage P-Channel MOSFET we have currently is -25V. If you require 100V N-Channel MOSFETs, I suggest you look here. 

http://www.ti.com/lsds/ti/power-management/n-channel-mosfet-transistor-products.page#p267=100;100

Your best bet is probably the CSD19534Q5A as this will be able to sufficiently handle your current demands. If you prefer a TO-220 device, I would recommend the CSD19533KCS. 

Its ok. brett. I will manege them from elsewhere.

btw would you please provide me the link where the P mosfet available. There are only N channel mosfet, I able to find.

Thanks,

Dharmandra Sharma

INDIA

Brett,

Thanks a lot for your support.

Regards,

Dharmendra Sharma

INDIA