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Connect 2 Half Bridge Drifers between DRV8701 and the 4 N-Mosfets

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dear ladies and gentlemen,

for my DC Motor I need a higher Supply Voltage than the DRV8701 withstand.
The N-Fet output stage needs more Current for Charge than the DRV8701 can deliver.

Is it possible to connect 2 Half Bridge Driver e.g. LM5109B between the DRV8701 and the 4 N-MOSFETs?

The DRV8701 should only control the ON/OFF sequence of the FETs and the LM5109B should drive the

N-FETs with the right Current and Voltage.

Could I disable the charge pump of the DRV8701, so that the Output of Low-Side has the same Voltage Level than the High Side?

Thanks in advance

Thomas Straßer


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