Need to determine the right usb c breakout board for 5V 2A supply. the device Ill be using this for has a Max. 10 W (typ. 5 W) draw.
I was looking at the BOB-17110 because it mentions it would limit the voltage to 5V, but it doesn’t mention any limits for amperage. The BOB-16998 and BOB-15100 mention they can handle up to 3A, but i was concerned about them not being able to limit the voltage.
Is there one of these that would best work for my needs? For reference this is to repair a digital mixer whose usb micro device failed. Im trying to replace it with something more universal and robust. Thanks in advance!
None of the breakout board you mentioned will limit voltage or current, they all are operationally the same product and work the same way. Each contains two resistors that trick a computer or phone charger into giving you 5 volts at 500mA when plugged in via a USB C cable.
The computer ultimately determines how much voltage and current to provide and many don’t follow the USB C specification so it’s a bit of a crap shoot to figure out what you will get.
That being said, you should expect 5 volts at at least 500mA with these breakouts when connected to a computer. All will give 5 volts, some will give more than 500mA. It depends on how well your computer or charger follows the spec.
If you use your own 5V power supply on one breakout and your device connected to a second breakout, you would get 5V at whatever current your power supply and cable are capable of supplying. (Your power supply is completely unaware you’re using USB-C and doesn’t care and will just give whatever it can)
If you want to use a computer or a USB power delivery charger (USB-PD) and need 5 volts at 2A, it gets a lot more complicated.
You would need a USB-C breakout that has power delivery negotiation, that involves a microcontroller and writing code to negotiate your voltage and current needs. Sparkfun makes a breakout for that, see the link below. It’s not a plug and play device though and requires additional parts and programming to work.
In short, if you’re using your own non USB power source connected to a “dumb” breakout, everything should work. If you connect the breakout to a phone charger or computer, it might work, it might not.
Ahh gotcha, thanks! The use case here is i have an audio mixer that has a bad usb micro power input that is known to fail.. and it did. I was thinking that i could replace it with a usb c connector and have that be more robust and safer, than say a bullet connector in that it would manage its power input from things like a phone charger because of the resistors that would make it give just 5v.
So if i use the orignally mentioned breakouts, id need to be using a power supply or charger that delivers basically what i need. if i want it to be flexible/ intelligent to only let in what i need, then use the power delivery board. I understand that right?
I think you will be OK with the breakouts you posted earlier, just make the same connections on the USB C connector thst were on the old one. (5v, GND, D+, D-, or just 5V and GND if that’s how it was)
Your old cable was probably a A to micro B, just use a low speed (not blue USB 3) A to C cable and I think it will work.