DRV104: Driver Duty cycle, Delay, Oscillator Frequency Adjust.

J S

Part Number: DRV104
Other Parts Discussed in Thread: DRV110

Tool/software:

I'm looking to use the DRV104 as a solenoid driver with a DAC to change the duty cycle. The datasheet mentions voltage ranges corresponding to the set duty cycle and that is fairly straightforward. I'm looking to see if delay or oscillator frequency could be controlled in a similar manner.

over 1 year ago

0 Shinya Morita over 1 year ago

TI__Mastermind 44315 points

Hi,

Thank you for your question. Our expert will feedback to you within a day or two.

0 Jacob Thompson over 1 year ago

TI__Mastermind 23411 points

Hello,

It's not really designed for DAC control of that. However, this is similar to DRV110 and I did find this post about using a DAC 0V to 1V to control the inputs, you could give this a shot on these inputs too: https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/876902/drv110-configuring-peak-and-hold-currents-vi-a-ucontroller-sw-and-not-passive-components/3252533#3252533

Another option just for initial testing would be a Digital Potentiometer like this: https://www.adafruit.com/product/4286 (or just a normal potentiometer if you're okay with manual control)

Just curious, what's the application for this? We have some new solenoid drivers coming out that might fit your application better

Best,

Jacob

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DRV104: Driver Duty cycle, Delay, Oscillator Frequency Adjust.