2020-09-25 01:04 AM
I am doing a stepper control circuit as link https://www.pololu.com/file/0J1626/stspin220-stepper-motor-driver-compact-carrier-schematic.pdf
STSPIN220 : https://www.st.com/resource/en/datasheet/stspin220.pdf
Vs (VMOT) : 5V for the stepper: 5V - operation voltage
VCC: 1.8C - the logic voltage. => Is it Ok? I will use a microcontroller (the logic voltage is 1.8V ) to control signals: STEP, DIR, EN, MODE1, MODE2 of STSPIN220
Do you have any recomendation for me?
Many thanks!
Solved! Go to Solution.
2020-09-25 05:30 AM
That's what the STSPIN2xx is designed for. So yes, you can supply the STSPIN220 with 5V while driving its IOs with 1.8V logic level. Just make sure the high level is at least at 1.6V, which should be fine using CMOS outputs.
If you haven't already selected the microcontroller, you can also use an STM32 as many of them are able to work down to 1.61V.
Good luck!
/Peter
2020-09-25 05:30 AM
That's what the STSPIN2xx is designed for. So yes, you can supply the STSPIN220 with 5V while driving its IOs with 1.8V logic level. Just make sure the high level is at least at 1.6V, which should be fine using CMOS outputs.
If you haven't already selected the microcontroller, you can also use an STM32 as many of them are able to work down to 1.61V.
Good luck!
/Peter
2020-09-27 11:27 PM
Thank you for your support!
2020-09-28 01:53 AM
Hi Mr. Peter: I have more questions:
I see that STSPIN220 can be used for "Pop-up camera control for smartphones" application.
Can you tell me other IC with the same application?
Which smartphone brands used them? I am sorry for this inconvenience.
Thank you.
2020-09-28 05:10 AM
No, I can't give you other ICs for this use.
You'd like to know which smartphone brands use them? Well, it doesn't look like a technical question, does it?
Regards
/Peter
2020-09-29 01:41 AM
Thank you. I think I had a good answers from you.