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PD Dongle: Difference between revisions
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Furthermore, the Raspberry Pi 5's USB port will be current-limited to 600mA. At this time, we can plug our PD dongle adapter into the Raspberry Pi 5's power USB-C port '''to achieve 5V5A PD handshake''', and '''the Raspberry Pi 5 will support full-speed operation'''. At the same time, the Raspberry Pi 5's USB current limit will be relaxed '''from 600mA to 1.6A.''' | Furthermore, the Raspberry Pi 5's USB port will be current-limited to 600mA. At this time, we can plug our PD dongle adapter into the Raspberry Pi 5's power USB-C port '''to achieve 5V5A PD handshake''', and '''the Raspberry Pi 5 will support full-speed operation'''. At the same time, the Raspberry Pi 5's USB current limit will be relaxed '''from 600mA to 1.6A.''' | ||
<span style="color:red">Note: If a lightning bolt icon appears in the status bar, it's a low voltage warning due to insufficient power supply voltage, not a PD handshake issue, and can be ignored. | <span style="color:red">Note: If a lightning bolt icon appears in the status bar, it's a low voltage warning due to insufficient power supply voltage, not a PD handshake issue, and can be ignored. If you want to remove the lightning bolt icon, you need to replace the power supply to ensure it provides 5.1V to the Raspberry Pi 5.</span> | ||
== Applicable Scenarios== | == Applicable Scenarios== | ||
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== Precautions== | == Precautions== | ||
* <span style="color:red">The PD dongle is only used for PD negotiation and handshake with the Raspberry Pi 5 and does not participate in power supply itself. The actual power supply capacity is determined by the pins or PoE module itself.</span> | * <span style="color:red">The PD dongle is only used for PD negotiation and handshake with the Raspberry Pi 5 and does not participate in power supply itself. The actual power supply capacity is determined by the pins or PoE module itself.</span> | ||
*<span style="color:red"> Occupies the USB-C power port; not compatible with setups that supply power through the USB-C port.</span> | *<span style="color:red"> Occupies the USB-C power port; not compatible with setups that supply power through the USB-C port.</span> | ||
==Technical Specification== | ==Technical Specification== | ||
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Latest revision as of 17:39, 21 August 2026
Product Overview
The PD dongle is an adapter for 5V5A PD handshake with a Raspberry Pi 5. It prevents the Raspberry Pi 5 system from displaying a pop-up window, allows the USB port to accept up to 600mA current, supports reversible insertion of the USB-C port, and is compact (only 1*1cm), saving space. It features immersion gold plating and lead-free manufacturing.
Functional Principles and Problems Solved
If the power supply is provided to the Raspberry Pi 5 via a power pin or PoE, a PD handshake with the Raspberry Pi 5's USB-C power port cannot be achieved. Therefore, a pop-up window will appear after system startup, as shown in the red box in the image below.
Furthermore, the Raspberry Pi 5's USB port will be current-limited to 600mA. At this time, we can plug our PD dongle adapter into the Raspberry Pi 5's power USB-C port to achieve 5V5A PD handshake, and the Raspberry Pi 5 will support full-speed operation. At the same time, the Raspberry Pi 5's USB current limit will be relaxed from 600mA to 1.6A.
Note: If a lightning bolt icon appears in the status bar, it's a low voltage warning due to insufficient power supply voltage, not a PD handshake issue, and can be ignored. If you want to remove the lightning bolt icon, you need to replace the power supply to ensure it provides 5.1V to the Raspberry Pi 5.
Applicable Scenarios
Designed for Raspberry Pi 5 powered without using the USB-C port, including:
- PoE Ethernet power supply
- 40Pin GPIO header / pogo pin power supply
- Other 5V power solutions that bypass the USB-C port
Precautions
- The PD dongle is only used for PD negotiation and handshake with the Raspberry Pi 5 and does not participate in power supply itself. The actual power supply capacity is determined by the pins or PoE module itself.
- Occupies the USB-C power port; not compatible with setups that supply power through the USB-C port.
Technical Specification
| Compatible Devices | Raspberry Pi 5 |
| Core Function | Analog 5V5A PD power negotiation |
| Interface |
USB-C male connector, supports reversible insertion |
| Size | 10×10mm |
Packing List
- 1x Raspberry Pi 5 Dedicated PD Dongle
FAQ
Q1:
A: