DRV120: output current can be controlled by the DAC output analog voltage?

Art Mecina

Part Number: DRV120
Other Parts Discussed in Thread: DRV103

Hello Guys,

Good day.

Our customer wants to use DRV120 to control the proportional valve. He wants to know if the output current can be controlled by the DAC output analog voltage.
He saw that the DRV103 manual mentioned that the output PWM frequency can be controlled by analog voltage. He is wondering whether DRV120 can also do the same?

Thanks!

Art

over 3 years ago

0 Shinya Morita over 3 years ago

TI__Mastermind 31685 points

Hi,

Thank you for your interest in DRV120. DRV120 is not designed to control current by external voltage(DAC) input, just designed to set Peak and Hond with Rpeak/Rhold. However this link is gimmick to control current level externally. This is optional and not accurate control function so I recommend you to use small step control (e.g 2-4 steps) only.

Please refer this link.

(+) DRV110: power driver - Motor drivers forum - Motor drivers - TI E2E support forums

regards

Shinya