JacobsParts USB C PD DC Voltage Trigger Test Module User Manual

Introduction

The JacobsParts USB C PD DC Voltage Trigger Test Module is designed to negotiate specific voltage outputs from a USB-C Power Delivery (PD) power supply. This module allows users to trigger 5V, 9V, 12V, 15V, or 20V outputs, enabling the powering of various electronic devices or testing power supply capabilities. It supports up to 5A / 100W and includes an E-Mark chip for high-power negotiation. The module retains its voltage setting after power loss and features LED indicators for the current voltage output.

Setup

1. Power Supply Requirement: Ensure your USB-C power supply supports the Power Delivery (PD) protocol. The module requires a PD-compatible source to function correctly.
2. Connecting the Module: Connect the male USB-C end of the module directly into your USB-C PD power supply or charger. The power supply must be connected to this male end.
3. Initial Power-On: Upon connection, the module will typically default to 5V if no previous setting is stored or if the power supply does not support higher voltages. An LED indicator will illuminate to show the current voltage. If no LED is lit, the output is 5V.

Figure 1: The JacobsParts USB C PD DC Voltage Trigger Test Module. The male USB-C connector plugs into the power source, and the female USB-C port provides the triggered voltage output.

Operating Instructions

The module features two buttons, S+ (Voltage Up) and S- (Voltage Down), for controlling the output voltage and other functions. LED indicators show the currently selected voltage (9V, 12V, 15V, 20V). If no LED is lit, the output is 5V.

Figure 2: Top view of the module, highlighting the S+ and S- buttons and the voltage indicator LEDs (9V, 12V, 15V, 20V).

Voltage Adjustment

• Basic Operation (Unlock Board First):
  1. While holding the S+ button, press the S- button to unlock the board for voltage changes.
  2. Press S+ to increase the output voltage to the next available PD profile (e.g., 5V → 9V → 12V → 15V → 20V).
  3. Press S- to decrease the output voltage to the previous available PD profile.
• Reset to 5V: Press and hold the S- button while connecting the module to the power supply. This will force the module to output 5V.

Key Lock Functions

• Quick Key Unlock: After the module is powered on, while holding S+, quickly press S-.
• Quick Key Lock: After the module is powered on, while holding S-, quickly press S+.
• Permanent Key Lock: Press and hold the S+ button while connecting the module to the power supply. Once powered, press S+ or S- to enable or disable the permanent key lock. If enabled, voltage cannot be changed until unlocked.

Test Mode

• Automatic Voltage Cycling: Press and hold both S- and S+ simultaneously while connecting the module to the power supply. The output voltage will automatically cycle through all supported voltages, useful for testing power supply capabilities.

Figure 3: Bottom view of the module, displaying printed instructions for key lock and test mode functions.

Maintenance

The JacobsParts USB C PD DC Voltage Trigger Test Module requires minimal maintenance. To ensure optimal performance and longevity:

• Keep Dry: Avoid exposing the module to moisture or liquids.
• Clean Gently: If cleaning is necessary, use a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
• Handle with Care: Avoid dropping or subjecting the module to strong impacts, as this can damage internal components.

Troubleshooting

• No Voltage Output or Stuck at 5V:
  • Ensure your USB-C power supply fully supports the Power Delivery (PD) protocol. This module relies on PD negotiation.
  • Verify that the power supply connected to the male USB-C end of the module supports the desired voltage. Not all USB-C power supplies support all voltage profiles (e.g., some may not offer 15V or 20V).
  • If the module appears unresponsive, try the "Reset to 5V" procedure (hold S- while connecting to power).
• Module Not Functioning Correctly:
  • The module is sensitive to the orientation of the USB-C cable due to specific pin configurations. If it doesn't work initially, try flipping the USB-C cable connected to the power source.
  • Ensure the board is unlocked before attempting to change voltages (refer to "Quick Key Unlock" in Operating Instructions).
• Unexpected Voltage Output:
  • The module only performs PD negotiation and passes the output. The actual voltage and current delivered depend on the capabilities of your power supply and the connected device.
  • Use a multimeter or USB power tester to confirm the actual output voltage if there is any doubt.

Specifications

Warranty and Support

Specific warranty information for the JacobsParts USB C PD DC Voltage Trigger Test Module is not provided in this manual. For detailed warranty terms, technical support, or further assistance, please contact JacobsParts directly through their official website or the retailer where the product was purchased.