Working with USB Type-C Devices? Total Phase USB Power Delivery Analyzer Makes it Easy to Set up and Take Real Time Measurements

Do you know what it takes to start monitoring the communication between USB Type-C devices, as well as the VBUS and VCONN voltage? With the Total Phase USB Power Delivery Analyzer - download the software, connect the USB Power Delivery to your devices and take measurements. There are five easy steps shown in the video below:

As you also saw in the video, you can view the data as well as graphs for the voltage and current measurements in the Data Center software.

 Using Data Center to see USB Type-C data  DataCenter shows USB Type-C voltage and current measurements

Figure 1: USB Type-C Data

Figure 2: USB Type-C Voltage and Current

 

Here’s a summary about the voltage and current measurements:

Vbus Voltage. Measured via an INA231 ADC on the Vbus lines of the USB Type C receptacle connector pins A4, A9, B4, and B9

Vbus Current.  Measured via an INA231 ADC across a 0.015 Ohm shunt resistor between the Vbus input Type C receptacle and the Vbus Type C plug

Vconn Voltage.  Measured via INA231 ADC on CC2 signal (pin B5) of the USB Type C receptacle.

Vconn Current. Measured via an INA231 ADC across a 0.015 Ohm shunt resistor between the CC2 (pin B5) Type C receptacle and the CC2 (pin B5) Type C plug

CC1 Voltage. Measured via STM32's internal ADC - this clips at 3.3V and is useful for "traffic indication".

CC2 Voltage. Measured via STM32's internal ADC - this clips at 3.3V and is useful for "traffic indication"

Additional resources that you may find helpful include the following:

If you have any questions about our USB Delivery Device or other Total Phase products, feel free to email us at sales@totalphase.com, or if you already own one of our devices and have a technical question, please submit a request for technical support.

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