Part Number:DRV101
First of all, I would like to thank you again for the help and advice given in my previous question relating to the DRV10x solenoid drivers. I settled on the DRV102 and created a PCB with 5 DRV102's, 10 diodes, 5 0.47uF capacitors, and 5 10kOhm pots to adjust the duty cycle. These have worked great and I can now play the full range of my sax using just one hand.
I put some video here to show the design in action.
My thoughts have now gone back to one of the earlier responses to my original question, where it was suggested I could use the ULN2003A or the TPL7407LA.
My holding voltage at the moment is about 1.9v, which I understand may be too low for these IC's. However, at this stage, I am more interested in the function of these IC's and the Octal power switch detailed in the DRV102 spec.
The scenario I envisage would be a solenoid is activated and held in position. A second solenoid is then activated and held in position or activated, released, and activated again before being held in position. The two solenoids are then released, then activated together.
Are any of the array controllers suitable for such a task? I cannot get my brain to comprehend how they could do this.
My aim is to reduce the overall size of my PCB and the number of components. I did look at using the DRV103's (I purchased 10 of them), and may revisit them, but I had great difficulty working with them, namely when trying to solder them into my circuit.
If I can reduce the size of the circuitry, I may be able to apply the same concept to smaller instruments.
Thanks in advance for any advice.
Simon