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UCC5310: Is UCC5310 Suitable for Driving a 110V Solenoid (Load < 500 mA)? Looking for Isolated Gate Driver Suggestions

Loganathan ravi
Prodigy 40 points
Part Number: UCC5310
Other Parts Discussed in Thread: UCC5320, TINA-TI

Tool/software:

Hello TI Team,

I’m working on a solenoid drive application with an input voltage of 110V ±30% The solenoid is controlled using a low-side switching topology, and the load current is less than 500 mA.

I’m considering the UCC5310 as a single-channel isolated gate driver for this application. Could you please confirm if this device is suitable for driving a low-side N-channel MOSFET in this setup?

If not, I would appreciate any recommendations for a compact, isolated gate driver that meets the following requirements:

  • Low-side drive
  • Load current < 500 mA
  • Reinforced isolation preferred
  • Compatible with 110V system voltage
  • Fast switching capability for inductive load

Any suggestions or reference designs would be very helpful.

Thank you!




  • 0
    TI__Mastermind 23176 points

    Hi Loganathan,

    The UCC5310 is suitable. It has the softest turn-off of this device family (below), which will likely be a benefit in this low switching frequency, high inductance application. The weak turn-off drive strength will help dampen the voltage overshoot when the low-side solenoid switch is opened. Which FET have you selected for the UCC5310 to drive? And at what switching frequency? I assume it is below 10kHz.

    Best regards,

    Sean

  • 0 in reply to Sean Cashin
    Prodigy 40 points

    Hi Sean,

    Thank you for your valuable input, and apologies for the delayed response.

    We are using the following components in our design:

    • Gate Driver Part Number: UCC5320SCDWVR
    • MOSFET Part Number: FDD7N25LZTM

    We’ve attached the schematic for your review. Kindly take a look and share your feedback—it would be extremely helpful for us at this stage.

    Looking forward to your response.

  • 0 in reply to Loganathan ravi
    TI__Mastermind 23176 points

    Hi Loganathan,

    100 ohms and 330nF is much to large of an RC constant. I expect you will have to reduce these values to have fast switching. You will likely have to tune these down experimentally, until you start to see switch node overshoot: The UCC5320 already has 12 ohms of internal Roh, so I suggest starting R20= 10 ohms and C57= 1nF, and decreasing the resistance from there.

    Best regards,

    Sean

  • 0 in reply to Sean Cashin
    Prodigy 40 points

    Hello Sean, 

    Hi Team,

    I’d like to confirm whether the UCC5320 gate driver supports 100% duty cycle operation, specifically for simple ON/OFF control without any switching frequency or PWM. I’ve already provided a 24V isolated supply to VCC2.

    Regarding,

    Loganathan.R

  • 0 in reply to Loganathan ravi
    TI__Mastermind 23176 points

    Hi Loganathan,

    Yes, if the UCC5320 is provided with an isolated supply, with 24V referred to the source of the FET that it is driving, then it can support 100% duty cycle. The only challenge with 100% duty cycle is you cannot use a bootstrap supply, which needs to be periodically re-charged.

    Best regards,

    Sean

  • 0 in reply to Sean Cashin
    Prodigy 40 points

    Hello Sean,

    Thank you for your continued support.

    I’m currently working on the simulation for the gate driver UCC5320SCDWVR. SPICE model available on the TI website doesn’t seem to function as expected in our setup.

    Could you please share a working PSpice or TINA-TI model for this device? It would be extremely helpful for us to move forward with the simulation.

    Thanks again for your assistance.

    Best regards,

    Loganathan. R

  • 0 in reply to Loganathan ravi
    TI__Mastermind 23176 points

    Hi Loganathan,

    Can you please share your simulation file? I will try to see what the issue is.

    Best regards,

    Sean

  • 0 in reply to Sean Cashin
    Prodigy 40 points

    Hi sean,

    I'm unable to upload the file here. Could you please share your email ID so I can send it to you?

    Regards,

    Loganathan .R

  • 0 in reply to Loganathan ravi
    TI__Mastermind 23176 points

    Hi Loganathan, 

    I am unable to share my ti email on E2E. Can you try to zip the project folder? That is usually required for uploading Pspice files to E2E.

    Best regards,

    Sean