Is it possible to connect DVR8332 with an 48V 10A BLDC motor?

Jose Fernando Gomez Galloso

Other Parts Discussed in Thread: DRV8332, DRV8301, DRV8302, BOOSTXL-DRV8301

Hello, I have a BLDC motor, that operates at 48Vdc, and I've already purchase 3 DRV8332 and a Piccollo C2000 Launchpad for developing a motor controller requested for an Eco car contest.

Problem is I believe the battery from this hub motor has a continuous dicharge Current of 20A and holds current peaks of 50A, but I'm afraid that I can't even make the motor to start with the DRV8332 before it triggers its OC security turn off.

http://www.goldenmotor.com/e-Bike-DIY/MP3%20SmartPie%20Wiring%20Layout.jpg

The motor works between: 20-48Vdc
has a power rate of: 250W - 1000W

Is there a way to use this DRV8332 or should I abort the mission and use mosfets?

over 11 years ago

0 Wilson Zuo over 11 years ago

TI__Mastermind 26065 points

Hi Jose

I think the current level is beyond the capability of DRV8332. Even the motor is running with DRV8332, you may find problems with heat dissipation.

MCU+DRV8301/DRV8302+ MOSFETs should be a better choice. You can refer to this small tool kit http://www.ti.com/tool/boostxl-drv8301

You can change the MOSFETs and OCP parameters for bigger current.

Or directly with the more power one http://www.ti.com/tool/drv8301-hc-c2-kit

Thanks.

0 Jose Fernando Gomez Galloso over 11 years ago in reply to Wilson Zuo

Prodigy 30 points

Hi Wilson Zuo, thanks for the fast response.

But then, I can't either buy the tool kit and apply it because its own current limit, too.

Then should I build an arrangement of MOSFETs similar to the build in the tool kit?

Thanks

0 Wilson Zuo over 11 years ago in reply to Jose Fernando Gomez Galloso

TI__Mastermind 26065 points

Hi Jose

Yes. As 20 to 50A current, you should use kit like this one http://www.ti.com/tool/drv8301-hc-c2-kit

Or just refer to this one and build you own power stage (DRV8301+MOSFETs), then, use the c2k launch pad to control it just as the structure of the small kit http://www.ti.com/tool/boostxl-drv8301

Thanks.

0 Jose Fernando Gomez Galloso over 11 years ago in reply to Wilson Zuo

Prodigy 30 points

Thanks for everything Wilson, do you know of any diagram I can use?

0 Nicholas Oborny over 11 years ago in reply to Jose Fernando Gomez Galloso

TI__Mastermind 21320 points

Hi Jose,

The BOOSTXL-DRV8301 design files are located on the tool folder webpage in a zip folder. I would recommend using these as the basis for your design. You will just need to scale the design for higher currents/voltages.

http://www.ti.com/tool/boostxl-drv8301

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Is it possible to connect DVR8332 with an 48V 10A BLDC motor?