STUSB4700 Datasheet Stand-alone autonomous USB PD controller with short-to-VBUS protections Features USB power delivery (PD) controller Type-C attach and cable orientation detection Single role: provider Full hardware solution - no software 2 I C interface + interrupt (optional connection to MCU) Supports up to 5 power data objects (PDO) Configurable start-up profiles Integrated V voltage monitoring BUS Internal and/or external V discharge path BUS Short-to-VBUS protections on CC pins (22 V) High voltage protections on V pins (28 V) BUS High and/or low voltage power supply: V = 3.0 V 5.5 V SYS V = 4.1 V 22 V DD Automotive grade available Fully compatible with: USB Type-C rev 1.2 USB PD rev 2.0 Certification test ID 1030023 Product status link Applications STUSB4700 AC adapters and power supplies for: computer, consumer or portable consumer applications Smart plugs and wall adapters Power hubs and docking stations Displays Any Type-C source device Description The STUSB4700 is a new family of USB power delivery controllers communicating over Type-C configuration channel pin (CC) to negotiate a given amount of power to be sourced to an inquiring consumer device. The STUSB4700 addresses provider/DFP devices such as notebooks, tablets and AC adapters. The device can handle any connections to a sink or DRP without any MCU control, from the device attachment to power negotiation, including V BUS discharge and protections. DS11977 - Rev 6 - April 2021 www.st.com For further information contact your local STMicroelectronics sales office.STUSB4700 Functional description 1 Functional description The STUSB4700 is an autonomous USB power delivery controller optimized as a provider. It offers an open drain GPIO interface to make direct interconnection with a power regulation stage. The STUSB4700 offers the benefits of a full hardware USB PD stack allowing robust and safe USB PD negotiation in line with USB PD standard. The STUSB4700 is ideal for provider applications in which digital or software intelligence is limited or missing. The STUSB4700 main functions are: Detect the connection between two USB ports (attach detection) Establish a valid host to device connection Discover and configure V : Type-C low, medium or high current mode BUS Resolve cable orientation Negotiate a USB power delivery contract with a PD capable device Configure the power source accordingly Monitor V , manage transitions, handle protections and ensure user and device safety BUS Additionally, the STUSB4700 offers 5 customizable power data objects (PDOs), 5 general purpose I/Os, an integrated discharge path, and is natively robust to high voltage peaks. Figure 1. Functional block diagram VDD VBUS SENSE voltage VSYS Internal VBUS status monitoring Discharge VREG 2V7 supply path VREG 1V2 VBUS EN SRC VCONN SW VCONN (OVP & OCP) A B SIDE Port C SCL controller IC SDA slave CC CC1 ALERT port status line CC2 access VVAR ADDR0 VBUS DISCH Control GPIO 4..0 Device Policy Protocol Physical BMC POR & Policy reset RESET Engine Layer Layer driver Manager generator GND DS11977 - Rev 6 page 2/41