DRV8426E: second bridge not used on DRV8426E

SYLVAIN BOURIOT

Intellectual 470 points

Part Number: DRV8426E

Hello,

I want to connect one brusded DC motor on the DRV8426x (x=E or P).

what is the best solution?

Do not use the second bridge in the IC or connect the second bridge in parallel with the first?

Best Regards.

Sylvain

over 3 years ago

0 Ryan Kehr over 3 years ago

TI__Guru 55655 points

Sylvain,

For the unused output, you can just leave the output pins unconnected and also the input pins.

Regards,

Ryan

0 SYLVAIN BOURIOT over 3 years ago in reply to Ryan Kehr

Intellectual 470 points

Is it allowed to connect the second bridge in parallel with the first to increase output current?

Best regards.

Sylvain

+1 Ryan Kehr over 3 years ago in reply to SYLVAIN BOURIOT

TI__Guru 55655 points

Sylvain,

This could cause a shoot-thru event as the timing to switch the two parallel connected bridges are not synchronized. If you need more current, please consider the DRV8256E or DRV8256P.

https://www.ti.com/product/DRV8256?keyMatch=DRV8256

Regards,

Ryan

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DRV8426E: second bridge not used on DRV8426E