DRV8432

Vladimir Naumenkov

Other Parts Discussed in Thread: DRV8412

I’d like to use motor driver DRV8432 together with DC motor Maxon 148867 (6A max current). Please, advise, what circuit is better to use: in accordance with the fig 8 or fig 9 of the datasheet? Power supply is 24V battery.

TIA

Sincerely,

Vladimir Naumenkov

www.agat.by

over 10 years ago

0 Wilson Zuo over 10 years ago

TI__Mastermind 26065 points

Hi Vladimir Naumenkov

I would recommend parallel configuration for this motor to get enough margin on the current and thermal performance. Also good heat sink should be placed on the top of the device.
Also we have new datasheet available online now. Fig 9 is changed and you should mean fig 15.

Best regards,

0 Vladimir Naumenkov over 10 years ago in reply to Wilson Zuo

Expert 2970 points

Dear Mr Zuo!

Thank you

Please, answer, you recommend to place heat sink at the top of the case of the DRV8432? You mean, that thermal pad at the PCB is insufficiently?

TIA.

Sincerely,

Vladimir Naumenkov

www.agat.by

0 Nicholas Oborny over 10 years ago in reply to Vladimir Naumenkov

TI__Mastermind 21320 points

Hi Vladimir,

The DRV8412 has the thermal pad on the bottom (PCB side).
The DRV8432 has an exposted pad on the top (for external heat sink).
To achieve the rated current out of the DRV8432 you will need a sufficient heat sink attached to the device.

0 Vladimir Naumenkov over 10 years ago in reply to Nicholas Oborny

Expert 2970 points

Dear Nicholas

Thank you

Sincerely,

Vladimir Naumenkov

Motor drivers

Motor drivers forum

DRV8432