Autonomous USB Power Delivery (PD) source controller for DC−DC or AC−DC applications


  • Autonomous USB Power Delivery Rev. 3.0 (PD3.0) v1.2 and Type-C™ Rev. 2.0 compliant
  • Programmable Power Supplies (PPS) solution for DC-DC and AC-DC applications
  • Very low active power, highly power efficient
  • Built−in cable−drop compensation

The FUSB3307 is a fully autonomous Rev. 2.0 Type-C and Rev. 3.0 Power Delivery-compliant power source controller. It can control a DC-DC port power regulator such as the NCP81599 or an optocoupler on the secondary side of an AC-DC adapter. It implements the source finite state machines of USB Power Delivery 3.0 (PD3.0) and Type-C which includes Programmable Power Supplies (PPS).

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  • Constant Voltage (CV) and Constant Current Limit (CL) regulation
  • Small current sensing resistor (5 mOhm) for high efficiency
  • Gate driver for N-channel MOSFET as a load switch
  • CC1/CC2 pin protection up to 26 V
  • Built-in cable-drop compensation
  • Selectable resistor divider or battery charging (BC1.2) modes
  • Built-in output capacitor bleeding function for fast discharge
  • Adaptive UVP, adaptive OVP, OTP, and VBUS fault detection
  • Travel Adapters
  • Power Banks
  • USB-C Hubs
  • Automotive
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