DRV8874: Make two Buck converters using DRV8874

Naizeng Wang

Part Number: DRV8874

Hi team,

Can I make two Buck converters using DRV8874? It seems that I can control two half bridges separately in independent half-bridge control mode.

over 5 years ago

0 Wang5577 over 5 years ago

TI__Guru 56650 points

Naizeng,

Literally, you can. But, DRV8874 was designed for driving a motor (high noise condition). To filter out the input noise, DRV8874's input has an internal synchronization circuit which could cause the duty cycle jittering at output.

If you want to small ripple at the output (small duty cycle jittering), you may want to check DRV8800/1; DRV8844; DRV8412 or DRV8432.

A previous e2e post is related to this topic: https://e2e.ti.com/support/motor-drivers/f/38/p/3283364/editpost?ContentTypeId=1

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DRV8874: Make two Buck converters using DRV8874