DRV8873H-Q1EVM: LC filter upfront H-Bridge

Piet Vaes

Part Number: DRV8873H-Q1EVM

Hi, Ryan,

I am now using the DRV8873H to drive an Peltier TEC1-12706. Is there the necessity to place in front of the H-Bridge an LC filter

H-Bridge with filter.pdf

Best Regards

Piet

over 2 years ago

0 Ryan Kehr over 2 years ago

TI__Guru 54675 points

Piet,

Between the motor driver H-bridge and the TEC, it is recommended to place a LC filter. Please see the FAQ I wrote attached on the topic. 4 paragraph addresses this.

https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/967858/faq-what-motor-drivers-should-be-considered-for-driving-thermoelectric-cooling-tec-elements-or-peltier-devices

Regards,

Ryan

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DRV8873H-Q1EVM: LC filter upfront H-Bridge