DRV8705-Q1: Enquiry regarding driver ics

Nitesh Bhurke

Part Number: DRV8705-Q1

Tool/software:

Hello,

We are thinking to use H-bridge IC for changing polarity of current in coils. And we want to use pure power waves (sine PWM). So, can you please suggest any potential driver IC for our application?

Regards,

Nitesh

20 days ago

0 Shinya Morita 20 days ago

TI__Mastermind 34535 points

Hi,

Thank you for your question. DRV8705-Q1 has PWM input pin. If your MCU provide sine-PRM to DRV8705-Q1, you will have sine ware motor current.

regards

Shinya

0 Nitesh Bhurke 19 days ago in reply to Shinya Morita

Prodigy 150 points

Hello Shinya,

Thanks for the confirmation. Can you please check if TI manufactures controllers with Sinusoidal PWM, our requirement is to drive 2 H-bridges, so if they are available please let me know.

Regards,

Nitesh

0 Shinya Morita 16 days ago in reply to Nitesh Bhurke

TI__Mastermind 34535 points

Hi,

Thank you for your questions. DRV8705-Q1 does not have internal PWM generator. Basically DRV drive external FET based on IN1/IN2 logic signal as follows.

MCU has to generate sin PWM. DRV just follows IN1/IN2 logic input only.

regards

Shinya

Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

Motor drivers

Motor drivers forum

DRV8705-Q1: Enquiry regarding driver ics