Driver for Voice Coil Motor

na na78

Guru 16770 points

Other Parts Discussed in Thread: DRV201, DRV8881

We are looking for a VCM driver that meets the following.

VCC:12V-15V

INPUT: Analog Input. 1.8Vpp/2KHz (almost sine wave).

OUTPUT: 3.5Vpp, 1A.

DRV201 is a special driver for VCM but it does'n have analog input.

Do you have an idea to drive VCM in the other way?

Is it possible to drive VCM normal operational amplifier?

regards

over 9 years ago

0 Wilson Zuo over 9 years ago

TI__Mastermind 26065 points

Hi Na,

We are more familiar with DRV motor driver device here. One possible way is to control the current through DRV8x "Vref to current" close loop. Many of our DRV8x device have this function. Ex. DRV8881. The output current will be proportion to the Vref voltage.

Best regards,

0 na na78 over 9 years ago in reply to Wilson Zuo

Guru 16770 points

Hi Wilson

Thank you for your reply.
We also check about motor drivers continuously.

regards

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Driver for Voice Coil Motor