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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.

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How to install a USB-C PD host port on my electric longboard (54.6 V)

Installing a USB-C Port on a Longboard for Charging I'm exploring options to install a USB-C port on my longboard to utilize its enormous ~400 Wh battery for charging my phone/laptop/anything. Initial ...
Zach's user avatar
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Options after breaking USB-C jack off of PCB

Hello! Snapped the USB-C jack off of my Logitech MX Keys. I have a background in computer engineering and some experience doing board-level repairs. I do have an SMD hotplate, multiple soldering ...
Mikey's user avatar
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2 votes
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FT230X using USB-C receptacle not working for data transfer

I have tried to add a USB-C connection to my PCBA solely for data transfer. I have used a FT230XQ-R microchip (Datasheet) and followed their uploaded example for a USB-C receptacle. I have now ...
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Low Quiescent Current over USB Type-C [closed]

I'm working on a battery powered project which I'm currently planning on powering over USB Type-C for flexibility. The 5V/3A spec would satisfy my needs for the high end of power draw, however, I want ...
TianCilliers's user avatar
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ESP32, BQ25895 sharing usb data lines

Im building a portable device with a ESP32-S3 which will be interfaced with a SD card, and a BQ25895 charge controller. The ESP32 will connect to the computer as a mass storage device. The BQ25895 ...
Rufus Ahern's user avatar
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1 answer
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USB Type C PD Minimum Requirement

I have been wanting to veer away from older USB connectors and start using USB Type-C receptacles in future designs but the standard is quite confusing as a hobbyist. Searching the internet I see that ...
SolveEtCoagula07's user avatar
4 votes
2 answers
2k views

Are USB-C through hole shell stakes connected to GND or are they just there for fastening purposes only?

I am looking to use a USB-C 2.0 16 pin SMT connector on a PCB. I can't find any information on the manufacturers site on whether the through hole shield/shell stakes are connected to ground. Do these ...
user375969's user avatar
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USB Type-C DFP Host Port implementation without Switch

I am currently designing a new board that has a four port USB 3.2 x1 Gen1 hub on it. I only need two ports and now thinkering how to best make use of the other two ports. The idea was to make at least ...
Philippe Schenker's user avatar
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USB-C module configuration pins in parallel connection

I have received a lot of help from several members of this site. After trying to wire two charging ports on the same device and investigating the diode OR-ing configurations and the power mux ...
condor12's user avatar
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Question about DC pin in USB C module. Is it possible to connect two USB C and Micro USB connectors in parallel to charge the same battery?

Good morning everyone, I received help from several members of this page regarding my goal of adding a USB-C connector to a tablet that already has a micro USB connector for charging. After ...
condor12's user avatar
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Device is not charging (how to test ic)?

I have this USB-C rechargable vacuum cleaner. But 2 months after I replaced the battery for a bigger one (from 1500 to 3000 mah 18650) it is not charging anymore, it used to charge with the latter ...
Panamanian's user avatar
1 vote
4 answers
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Why USB-C plug doesn’t charge? [closed]

I have multiple USB-C 5V chargers of the same type that do not charge connected android devices. Devices detect charging if these are turned off, but when turned on, no charging icon of any visual ...
kamillabaarnowak's user avatar
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Troubleshooting power issue in LilyGo T4-S3 ESP32

I put a custom expansion board onto the nice T4-S3 devices' 2x15 header. But displaced by 1 pin (2 pins off) and shorted something out. Need help on how to troubleshoot and id the destroyed components....
Diego Alacerna's user avatar
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1 answer
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What is the best way to adapt a larger connector when the insertion holes on the PCB do not match?

Good day, everyone. I have a Type-C connector on a device that is much larger than the micro USB connector I had previously. The insertion legs do not align with the holes on the PCB, and since it is ...
condor12's user avatar
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Are the data pins necessary on a mini USB connector used only for charging a tablet? Is the ID pin used for OTG?

I have an older tablet, and I plan to replace the charging-only micro USB connector (which does not transmit data) with a USB-C connector. However, upon examining the pinout, I noticed that the two ...
condor12's user avatar
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How do I implement a USB-C connector onto a pcb to power a 3.3v Raspberry Pi Pico?

I've been looking into how to create my own pcb with a USB-C connector which breaks out into pins (VCC, D+, D- and GND) to then connect this to a Raspberry Pi Pico microcontroller but I have a few ...
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How should I select the ohm values for pull-up and pull-down resistors in a device with a USB Type-C connector used solely for power

Good morning, everyone. I am exploring the transition of the receptacle from a micro USB connector to a USB Type-C. Initially, my plan included implementing both sink and source capacity. However, ...
condor12's user avatar
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1 vote
1 answer
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Replace micro USB tablet connector with USB C

I'm considering upgrading my dad's old tablet, which currently has a micro USB connector. The issue arises from his habit of frequently misplacing the charger, and I'd prefer not to rely on an ...
condor12's user avatar
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DC-DC design with STUSB4761

I am designing a powered USB HUB (UFP) which can provide power to the host through USB PD. This means I need a PD controller which supports DR_Swap and it seems that STUSB4700/STUSB4710 cannot be used ...
osy's user avatar
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4 votes
1 answer
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Is a diode really necessary when exposing USB VBUS as a pin on a dev board?

Hobbyist dev boards are typically powered by USB and the GND and VBUS pins of the USB connector are usually broken out as pins on the board (so, that one can power additional devices connected to ...
George Hawkins's user avatar
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1 answer
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USB-C Connector Misalignment: Contacts Elevated by 0.5mm from PCB Pads

We are integrating a USB-C connector, specifically part number USB4715-GF-A, which is rated IP-68. The CAD model used was obtained from componentsearchengine.com. Upon assembling the connector CAD ...
Bob Jordan's user avatar
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2 answers
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USB C Power Delivery using below schematic?

I have limited experience with USB C and I want to design a board which needs to charge both a smartphone and another subsystem which draws around 1W. I have read that by just connecting a 5.1k ...
Andreiul's user avatar
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What is the meaning of a 28k pull-up resistor in an USB A-to-C cable?

Since that debacle a few years ago, I assembled a small test harness where I plug every new A-to-C cable that I get to check for the 56k pull-up resistor between CC and Vin and toss out the ones that ...
darthstark's user avatar
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1 answer
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Is there a voltage limit implemented in USB A to USB C charging?

We have a supplier that designed a battery pack for us. The pack has a USB C port, and comes with a USB A to USB C cable. The cable only has two wires (V+ and GND), with CC resistors embedded in the ...
millsj2's user avatar
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0 answers
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How to design dual mode USB Type C power bank?

I want to design power bank that has 2 USB Type C ports and uses a large lithium battery inside. I want to be able to use 100W power delivery when possible. I am absolutely overwhelmed by looking at ...
zoonman's user avatar
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1 vote
1 answer
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Help identifying chip in Huawei motherboard

Can you help me identify this chip? It looks like a SOT23-5 chip, it seems to be part of the USB-C Power Delivery. The laptop doesn’t power up because this chip seems to be part of the negotiation ...
L. Ricardo's user avatar
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0 answers
155 views

Raspberry PI (CM4) video to USB-C DisplayPort alt mode

I'm working on a project where I aim to utilize a USB-C port to embed both video signals and USB functionality. USB-C's "Alt Modes" offer potential solutions, namely DisplayPort (DP) Alt ...
nowox's user avatar
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Configuring a USB-C/PD Controller IC for a Type-A Output

I'm working on a new USB charging product to be installed on airplanes. I understand the power requirements well enough: it has to take 12V-32V input and be able to provide up to 45W of power per ...
Perry Watson's user avatar
14 votes
2 answers
2k views

What shape should the PCB edge have for this USB connector?

In the recommended layout for USB4500 by GCT (a mid-mount USB-C receptacle) there are these unexplained circular cut-outs on the PCB edge. What are these for? Are they needed? There are no dimensions ...
avakar's user avatar
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Review of a rocket flight controller schematic

I am currently designing a model rocket flight controller, which is supposed to calculate the altitude using a barometer and accelerometer and fire two pyro channels for two stage parachute ejection. ...
Fazeli24's user avatar
0 votes
1 answer
35 views

Need USB C cable / connector insulation voltage....and ESD on shield, will impact the internal signals

Any one know how much voltage the standard USB C cable insulation can withstand?..Also want to know shield to internal conductor insulation..If I apply ESD on the connector shield, will it impact the ...
NICEGUY NICEGUY's user avatar
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1 answer
63 views

Seeking USB-C Female PCB Connector for Razer Kraken X Headphones Adaptation [closed]

I’ve recently undertaken a project to adapt my Razer Kraken X USB headphones from a USB-A to a USB-C connection. Originally, these headphones featured a male USB-A cable designed for PC connection. I ...
L F's user avatar
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4 votes
4 answers
805 views

Are there any techniques for soldering USB-C 16 pin?

I am trying to solder Type-C SMD USB connectors but I can't do it properly. Despite using an SMT stencil for soldering, each time I am having an issue and I can not solder it properly. Sometimes pins ...
mehmet's user avatar
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2 votes
3 answers
1k views

Why are CC1 and CC2 only connected to USB-C?

This is a schematic where USB-C is used to power a circuit device. Notice that there are only VBUS and CC1 and ...
euraad's user avatar
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0 votes
1 answer
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USB Type-C receptacle vs plug

I am learning about USB Type with the help of this material.In that you can see that two figures Fig1 and Fig2 says USB Type-C receptacle and plug. May I know the difference between USB Type-C ...
Confused's user avatar
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0 votes
2 answers
79 views

Pulling 100W from USB-C PD through SMD connector

I'm designing a compact addressable LED strip driver circuit. Since USB Type-C chargers with PD should be able to provide up to 100W @ 20V, I want to use a USB cable as my main power source to power ...
Tadej Gašparovič's user avatar
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0 answers
118 views

USB-C Pogo Pin Coupler Troubleshooting

I've been working on this project for a while now and have hit a bit of a wall. I've been designing a magnetic cable coupler for a automotive device (Comma3X). The device communicates with the car via ...
Gyrohammer's user avatar
10 votes
3 answers
1k views

Ways of improving USB-C mechanical durability

Many PCB-mounted connectors, in my case a USB-C have no specification regarding mechanical integration. Often, the mechanical durability seemingly relies on through-hole (sometimes even surface mount) ...
NoobPointerException's user avatar
7 votes
3 answers
2k views

Does USB-C Power Delivery require both CC pins or D+/D- pins?

I'm working on a project to update a device to use a Li-Ion battery rather than non-rechargables. I would like it to be charged via USB-C. I have previously used IP2721 to handle the power delivery ...
Chris's user avatar
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0 votes
1 answer
116 views

How do I troubleshoot the ESP32 USB JTAG/UART interface on a new PCB design?

Question How do I troubleshoot the ESP32 USB JTAG/UART interface on a new PCB design? Background My son is working on a project to track satellites and this is the first time that we have worked with ...
KJ7LNW's user avatar
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0 votes
2 answers
109 views

Can I use USB C 3.2 Gen2 connector for power and data for a medical application?

My class 3 medical system uses 36V (~100W), 100Mbps ethernet for communication. I am planning to use USB 3.2 gen2 connector and cables to simplify my cabling in the system, and to have EMC shielding ...
NICEGUY NICEGUY's user avatar
1 vote
1 answer
93 views

Is it possible to apply quick charge 3.0 to USB-C?

There's a wall outlet with a USB-A fast charging port It has a USB-A charging port that supports 9V 1.67A fast charging. It uses FP6601Q and supports QC2.0/QC3.0. I'm trying to change the USB-A ...
 8  minikhh's user avatar
1 vote
0 answers
96 views

Monitoring Power/Connection status with INA219 and Arduino

Hey all I am looking to monitor the voltage/plugged in of a USB-C device. I am using the INA219 to monitor the voltage using the I2C (SDA/SCL) lines to my Arduino (not shown in the schematic). I just ...
StealthRT's user avatar
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1 vote
1 answer
232 views

Selecting a diode to prevent backfeeding from 5 V to USB-C port

I am making a circuit in which there will be a 12-30 V input reduced to 5 V and a USB-C port. I wanted to know which diode to use to avoid backfeeding the 5 V into the USB-C port. The diode should be ...
Loic Daigle's user avatar
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0 answers
72 views

USB-c R1/R2 configuration

I have a usb-c cable that plugs into a 4s lithium ion battery (DJI FPV goggle battery with proprietary cable.) The battery will only turn on if the usb-c plug (picture below) is plugged into it. I ...
fpvisnotacrime's user avatar
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0 answers
46 views

USB 2.0 FS device over USB C with both power directions

I'm designing a battery-powered device with the following requirements: rq1: (a) Charge the device's battery over a USB C receptacle, or (b) provide power over the same receptacle. Both directions ...
WowSuchName's user avatar
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0 answers
37 views

USB 3.0 without controller/mux

I am currently designing an interface board for the Jetson Orin Nano which will go into a commercial product. Part of the design includes a connection to a USB 3.0 camera (UVCI-AR0822-SL to be ...
Boris Yanchev's user avatar
0 votes
1 answer
51 views

Standard USB OTG to USB C IC [closed]

I have a board that supports USB-OTG, with an integrated PHY in my MCU. It's fairly trivial to support a keyed connector (like Micro-B), but I figure USB-C would need a seperate chip to handle the non-...
Shaken_U's user avatar
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0 votes
1 answer
168 views

ESP32-C3 USB not working with Android

I want to connect an ESP32-C3 mini board (pictured below) to an Android phone, so that it can do all the WiFi stuff that Android no longer allows. The board works fine connected to my desktop computer ...
JavaLatte's user avatar
  • 245
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0 answers
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How to check if I destroyed the bluetooth receiver

I have very little experience with electronics but I tried converting my Logitech unifying receiver to USB-C. I followed the steps I found online and got a functioning result. I based my wiring on the ...
Tee Mizzle's user avatar

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