Questions tagged [usb-c]
USB (Universal Serial Bus) Type C, a 24 pin connector system with a rotationally symmetrical connector. Consider using the "USB" tag in addition to this one.
527
questions
0
votes
1
answer
2k
views
Bidirectional USB Type C charging
Recently I bought a ready PCB that is basically a power bank when 18650 batteries are connected This. It has a micro USB port to charge the 18650s and two USB type A one of which output is 1A and the ...
- 119
0
votes
2
answers
866
views
Wiring a USB-C (host) cable question
I have wired some custom USB-C cables from scratch in the past, where the USB-A connector is plugging in to a host PC. If I wired a USB cable where the USB-C connector was plugging into a host ...
- 273
1
vote
1
answer
156
views
USB2.0 EH with USB type-C in accordance with USB specifications? Reasoning?
We would like to implement a slim USB host to
store/retrieve small files to/from an USB-flash-drive (with Type-C Plug).
We would like to implement an embedded (targeted) host according to the
On-the-...
- 11
14
votes
1
answer
19k
views
Using USB-C as a power source
I'd like to complete an electronics project by allowing it to be powered over USB-C. The specification is complex, I'd love some help understanding it!
I'll need to draw ~ 250mA at 5V for my project (...
- 624
0
votes
1
answer
756
views
Charging a QC 3.0 USB-C Thunderbolt specced laptop via generic 15V charger
I have a USB-C PD & QC3.0 device. It takes 20V @ 2.25A (45W), or 15V@3A to charge.
I also have a 15V 5A portable charger with a female 5.5mm x 2.5mm output port. I plan to connect the 5.5mm x 2....
- 85
17
votes
1
answer
109k
views
Wiring diagram for USB-C to USB-A cable?
I make USB cables (USB-A to Mini or Micro primarily), but don't have any experience with USB-C. I would like to create a cable that has a USB-A (2.0) connector on one end, and a USB-C connector on the ...
- 273
8
votes
2
answers
2k
views
Why are these capacitors needed on the USB-C CC lines?
The reference design for this USB-C chip recommends capacitors to ground between 200 and 600pF on the CCx lines. I have never seen a capacitor to ground on a digital signaling line. Does anyone know ...
- 1,010
-1
votes
1
answer
424
views
Repurpose a MagSafe 2 Charger for USB-C [closed]
Hi Mac Owner here that is now dealing with cable hell...
I have an inexpensive 60W MagSafe 2 charger that I was wondering if I was able to rewire the connector for USB-C. I have experience with ...
- 109
1
vote
2
answers
29k
views
USB-C cable layout
I want to hook up something to a usb-c cable, only for power. See it as lighting a LED with usb-c. However, once I cut the wire, I was surprised. I found a twisted pair (green, white) a yellow wire (I ...
- 113
-2
votes
1
answer
5k
views
USB C cable with two red wires instead of one red and one black one
I need to deep flash my phone, however instead of the normal red, black, white and green wires, my cable has two red, one white, one green and two uncoated wires. Since I don't really wanna die, which ...
1
vote
1
answer
2k
views
What is the shell of a USB-C plug for?
A USB-C has this characteristic shell (the outermost visible metal part). Would the connection still work without any problems if i were to remove the shell (given that all the pins still line up)?
...
- 23
0
votes
1
answer
84
views
configure tps25740 for only 5v in and out
i am using the tps25740 from texas instruments to use a usb c port for charging a device( a laptop) and a power source for slave usb devices. since the other circuitry in the latop will not be able to ...
- 83
1
vote
1
answer
2k
views
How does usb c charge and power peripherals with only one vbus pin [closed]
I am curious, if i am reading the digram correctly, how usb - c can charge a laptop and then with the same port(different time) power a peripheral device(like hard drive.) looking at the pinout it has ...
- 83
6
votes
3
answers
7k
views
Properly route through hole USB-C
I'm having major problems making a good layout with a through hole USB-C connector. Have anyone done a good layout for one? The best I have managed now looks pretty terrible and one of the ...
- 75
1
vote
2
answers
4k
views
USB C Powering over VCONN with no VBUS
I have a "host" device that does not have a 5V rail for VBUS but has a lithium battery for power.The battery voltage meets alternate mode VCONN specifications (2.7 V to 5.5 V on VCONN). Is it possible ...
- 4,669