{"title":"Adafruit USB Type C Power Delivery Dummy - I2C or Switchable","handle":"adafruit-usb-type-c-power-delivery-dummy-i2c-or-switchable-ada5991","url":"/products/adafruit-usb-type-c-power-delivery-dummy-i2c-or-switchable-ada5991","description":"The Adafruit USB Type C Power Delivery Dummy (I2C or Switchable) lets you tap into USB-C Power Delivery to get 5V, 9V, 12V, 15V, 18V, or 20V from any compatible USB-C charger or wall adapter — no soldering required. Built around the HUSB238 PDL003A E-Marker variant, it can request up to 5A for a maximum of 100W over USB-C.\n\nSelect your desired voltage using the on-board DIP switches for instant, no-code operation, or use the STEMMA QT / Qwiic I2C port to dynamically query available voltages and switch between them programmatically. A screw terminal block provides easy power output to your project.\n\nKey Features\n\n\nDIP Switch Voltage Selection – Choose 5V, 9V, 12V, 15V, 18V, or 20V with no microcontroller required\n\nI2C Control via STEMMA QT – Dynamically query and select PD voltages using I2C (DIP switch settings used at startup until I2C commands override)\n\nUp to 100W – Supports up to 20V at 5A with the E-Marker variant chip\n\nScrew Terminal Output – No-solder power connection to your project\n\nPower Good LED – Green LED indicates terminal block output is active (can be disabled)\n\nOn/Off Switch Pads – Solder a switch between two pads to disconnect the internal pass FET\n\nUSB Data Pads – D+/D- available on solderable pads for data applications\n\nNo Soldering Required – DIP switches and terminal block for fully solderless setup\n\n\nIdeal For\n\nPowering robots, LED strips, displays, and motors from USB-C chargers\nConverting battery or DC-powered devices to USB-C power\nProjects needing more than 5V @ 2A — get up to 20V @ 5A\nDynamic voltage selection in I2C-controlled power systems\n\n\nPackage Contents\n\n1× Adafruit USB Type C Power Delivery Dummy - I2C or Switchable\n\n\n\nWarning: Always unplug the USB PD cable before changing DIP switch settings to avoid accidentally selecting too high a voltage for your device. Verify that your downstream components can handle the selected voltage.\n\n\n\nNote: STEMMA QT / Qwiic cable not included. The actual voltage and current available depends on what your USB-C power source supports.\n\n\nResources\n\n\nAdafruit HUSB238 Arduino Library (GitHub) – I2C query and voltage selection example code\nWhat is STEMMA QT?\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":942,"title":"Default Title","sku":"AF-5991","mpn":"ADA5991","price":20.5,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}