DRV8813 Parallel full bridge output

masahiko shimizu

Other Parts Discussed in Thread: DRV8813, DRV8829

Hi,

Can I use DRV8813 as Parallel full bridge output?
Customer and I tried parallel full bridge output.
But My DRV8813's EVM had fault.
And customer's board, also.

We operated Brushed DC motor.

Maybe, I think it is occurring OCP by through‐current(EX: A phase's High side FET and B phase's Low side FET).

Could you let me know whether I can use DRV8813 as Parallel full bridge output, please?

Regards,
Shimizu

over 9 years ago

0 Rick Duncan over 9 years ago

TI__Guru** 114905 points

Hi Shimizu-san,

The A-side and B-side input to output timing can be different due to input deglitch logic. This can cause through-current as you have noted.

For higher currents (parallel mode), the DRV8829 is recommended.

0 masahiko shimizu over 9 years ago in reply to Rick Duncan

Guru 11235 points

Hi Rick-san,

Thank you for your support.
I understand it.

Thanks,
Shimizu

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DRV8813 Parallel full bridge output