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TI Home » TI E2E Community » Support Forums » Power Management » NexFET™ Power MOSFETs » NexFET™ Power MOSFETs Forum » MOSFET DRIVER FOR BUCK CONVERTER
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MOSFET DRIVER FOR BUCK CONVERTER

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ABID Raza
Posted by ABID Raza
on Mar 07 2012 18:26 PM
Prodigy20 points

I have designed the SMC controller for Buck converter in MATLAB Simulink, and interfacing it to circuit through PCI-1711 and PLD-8710 . Now I want to design the circuit of the buck converter. The controler generates a PWM signal and give it to the Gate of  MOSFET. But since a gate driver is needed so the PWM signal is given to the Driver and the output of the Driver, which must be PWM signal should given to the gate. So please tell me what driver should i use? The specifications are

 Input Voltage : 12-24 V

Output Voltage: 5-10 V

Output Current: 4-5A

Output power: 40-50 W

i am using IRF 540.. is it can fulfill my requirements or should i find some other? if yes please suggest...

The output of the PCI-1711 is 0-10V

Thanks

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  • CWilson
    Posted by CWilson
    on Mar 20 2012 02:58 AM
    Expert1730 points

    You can use the different "high side / low side gate drivers". They often have 3V3 input for signals. Just pulse on the one you need - the high side.

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  • ABID Raza
    Posted by ABID Raza
    on Mar 20 2012 03:04 AM
    Prodigy20 points

    I Have used TC4427 with the PWM input, but the output that drive gate of MOSFET is VDD, instead of PWM signal...

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  • CWilson
    Posted by CWilson
    on Mar 20 2012 03:07 AM
    Expert1730 points

    You can try the IRS21867STRPBF.

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