CAPUF Embedded has released a new board, USB Power Delivery board. It can sink up to 65W with hardware setting and with I2C configuration it can sink up to 100W of power.
The USB Power Delivery Board is nothing but a sink controller board. It negotiates with the USB PD Charger and gets the desired voltage and current rating as per the desired configuration.
The USB PD Power Delivery Board could be used in various applications where you want to use USB-C to power your product or project.
USB Power Delivery Board provides a very easy-to-use DIP switch to select which voltage or current rating you need O/P from your USB PD Charger.
It also has an on-board DC-DC converter, which can generate either 5V or 3.3V based on the shorted jumper. It can easily provide you with around 3.3W. NOTE: Even more power could be taken from the DC-DC Converter if the USB PD voltage is lower(9V, 12V, etc.) or if you use an external heatsink.
Voltage, current selection, or even monitoring is possible with the I2C interface, which is provided on the 4-Pin header.
High-Level Block Diagram
USB-C PD Board Features:
- Made in India: Designed and Manufactured in India
- Compact Size: 50mm x 35mm
- USB-C Input
- Power delivery up to 65W via DIP switch and 100W via I2C command (I2C pullups are not on the board). Please note that the 3.25A setting(via DIP Switch) may not work with many USB-C PD chargers. We have also observed this during testing.
- An additional DC-DC Converter(TPS54302) is onboard to generate 3.3V 1A / 5V 0.65A output so that you need fewer components on your application board.
- 4x Mounting holes for easy mounting
- LED indication for USB-C Input, USB PD Output and DC-DC Converter Output.
- A 2-pin power terminal is provided for easy connection.
- A 4-pin 2.54mm header connector is provided for the I2C connection.
- Both connectors will come unsoldered.
USB-C Power Delivery Board (TOP View)
DC-DC Converter Output Selection
By default, the 3.3V jumper will be shorted. If you need 5.0V output, please open the 3.3V jumper pads and short the 5.0V pads. See the image below for the position of the pads.
DIP Switch Selection
| Voltage Configuration | Switch Position |
|---|---|
| 5V O/P | S1 – 1 ON, S1 – 2, 3, 4 – OFF, S2-1 OFF |
| 9V O/P | S1 – 2 ON, S1 – 1, 3, 4 – OFF, S2-1 OFF |
| 12V O/P | S1 – 3 ON, S1 – 1, 2, 4 – OFF, S2-1 OFF |
| 15V O/P | S1 – 4 ON, S1 – 1, 2, 3 – OFF, S2-1 OFF |
| 18V O/P | S1 – 1, 2, 3, 4 – OFF, S2-1 ON |
| 20V O/P | S1 – 1, 2, 3, 4 – OFF, S2-1 OFF |
| Current Configuration | Switch Position |
|---|---|
| 1.5A O/P | S2-2 ON, S2-3, 4 – OFF |
| 2.0A O/P | S2-3 ON, S2-2, 4 – OFF |
| 3.0A O/P | S2-4 ON, S2-2, 3 – OFF |
| 3.25A O/P | S2-2, 3, 4 OFF |
USB-C Power Delivery Board Thermal Testing Images
We put a 60W (20V@3A load) on the board for two hours at room temperature(26 degrees C) and did not see even a 10-degree rise in the temperature.
So, the board is quite stable.
How to configure/monitor via I2C
For I2C, you need to connect the USB Power Delivery board with your external MCU board using the I2C interface (SCL, SDA, GND). Please note the pull-up resistance is not present on the USB PD Board.
Register Mapping is given in the PDF below.
HUSB238 I2C Register Information
How to buy?
For more information, please check CAPUF Embedded USB Power Delivery Board Product Page.
I am currently working as an embedded systems design consultant helping companies build custom embedded products and develop test automation solutions for their PCB.
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