DRV8426E: Driving Brushless Fan

Timur Ha

Prodigy 110 points

Part Number: DRV8426E
Other Parts Discussed in Thread: DRV8876

Hello,

Can I use this driver IC DRV8426P to driver a brushless DC fan?

I want to use this driver to drive a single DC fan utilising Aout1 and Aout2 pins?

What input signals should I use to drive it?

Best regards,
Timur

over 3 years ago

0 Ryan Kehr over 3 years ago

TI__Guru 55605 points

Timur,

Is is a 3-phase BLDC fan or a single-phase BLDC?

If single phase, then yes you could drive 2x fans with DRV8426P. Or consider a single h-bridge driver like the DRV8876 (upgrade to DRV8801A mentioned in TI design).

Please see TI design for single-phase.

https://www.ti.com/tool/TIDA-00875

If you need a 3-phase solution, let me know and I will move this post into our BLDC forum for a suggestion. If you could provide motor specifications, that would be most helpful. Supply voltage and current needs for your system would also help.

Regards,

Ryan

0 Timur Ha over 3 years ago in reply to Ryan Kehr

Prodigy 110 points

Hello Ryan,

It is a single-phase BLDC

Thank you

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DRV8426E: Driving Brushless Fan