When using the 5V pin on the QTPy as a voltage input, what is the actual voltage min/max that can be used? Or, in other words, what are the min/max input voltages for the onboard 3v regulator and are there any other components directly connected to the 5v pin that have to be taken into account?
-K
QTPy Input voltage?
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- dastels
- Posts: 15653
- Joined: Tue Oct 20, 2015 3:22 pm
Re: QTPy Input voltage?
2.5v to 6v
You might want to put a protection diode on it to protect your power source in case you accidently plug in USB with it connected. See https://learn.adafruit.com/assets/95390 to see the protection diode on the USB 5v line.
Dave
You might want to put a protection diode on it to protect your power source in case you accidently plug in USB with it connected. See https://learn.adafruit.com/assets/95390 to see the protection diode on the USB 5v line.
Dave
- professor k
- Posts: 59
- Joined: Sun Mar 18, 2012 7:33 pm
Re: QTPy Input voltage?
Thanks for the info Dave.dastels wrote: 2.5v to 6v
You might want to put a protection diode on it to protect your power source in case you accidently plug in USB with it connected. See https://learn.adafruit.com/assets/95390 to see the protection diode on the USB 5v line.
Dave
Diode is already in the design as per the note in the QTPy info page, but good advice. :)
-K
Please be positive and constructive with your questions and comments.