onsemi FUSB3317V6AMNWTWG

Overview

FUSB3317V6AMNWTWG from onsemi is a USB Type-C port controller IC implementing USB Power Delivery (PD) 3.0 and Programmable Power Supply (PPS) protocols, featuring integrated VBUS switch control, CC logic, and BMC PHY for bidirectional communication; operates from 2.7 V to 5.5 V, supports up to 100 W power delivery, and includes hardware-based dead-battery support and I²C interface for host MCU coordination.

For engineers reviewing the FUSB3317V6AMNWTWG datasheet, pinout, applications, or equivalent options, key selection considerations include PD 3.0/PPS compliance, integrated VBUS gate driver capability, CC line monitoring accuracy, BMC physical layer timing tolerance, and I²C address configurability for multi-port systems.

Technical Context

The FUSB3317V6AMNWTWG implements a full USB Type-C port controller stack with hardware BMC encoding/decoding, dedicated CC line comparators with ±10 mV offset tolerance, and autonomous dead-battery detection that enables VBUS sourcing without host MCU intervention. It supports both SRC and SNK roles and handles SOP, SOP', SOP'' token exchange per USB PD specification rev 3.0 v2.0.

Its integrated 28 V-rated N-channel VBUS switch driver supports external high-side MOSFETs with programmable slew rate control and overcurrent fault reporting via I²C; the device uses a 400 kHz I²C interface with configurable slave address (0x22–0x27) and supports interrupt-driven event notification for CC attach/detach, PD message receipt, and fault conditions.

Key Specifications

Pinout & Package

Package: 24-pin QFN (4 mm × 4 mm, 0.5 mm pitch), wettable flank, RoHS-compliant, thermal pad exposed on bottom.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB Type-C port controller applications.

Compared with STUSB4500QTR and TUSB8041A, the FUSB3317V6AMNWTWG delivers full PD 3.0/PPS protocol stack with integrated VBUS gate driver and hardware BMC PHY - reducing component count, improving timing reliability, and enabling next-generation adaptive charging in space-constrained applications.

Availability

FUSB3317V6AMNWTWG is available at Aetrix Electronics and suitable for USB-C docking stations, portable power banks, industrial charging cradles, and USB-C monitors requiring stable component supply and full USB PD 3.0/PPS compliance.

Supply support for FUSB3317V6AMNWTWG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and edge applications.

The FUSB3317V6AMNWTWG belongs to onsemi's USB Type-C and Power Delivery portfolio, engineered specifically for compact, high-reliability consumer and industrial USB-C endpoints requiring autonomous PD negotiation and robust VBUS path control.

FAQ

What USB Power Delivery specifications does the FUSB3317V6AMNWTWG support?

The FUSB3317V6AMNWTWG fully supports USB PD 3.0 revision 2.0, including Programmable Power Supply (PPS) with 20 mV voltage steps, Fast Role Swap (FRS), and extended message support. It implements BMC physical layer encoding/decoding in hardware and complies with USB Type-C 1.4 specification for CC line detection and orientation sensing. The FUSB3317V6AMNWTWG does not support USB PD 3.1 Extended Power Range (EPR).

Does the FUSB3317V6AMNWTWG include an integrated VBUS switch?

No, the FUSB3317V6AMNWTWG does not integrate a VBUS power switch but provides a dedicated high-side gate driver (VBUS_SRC) capable of directly driving external 28 V-rated N-channel MOSFETs. This architecture allows design flexibility in selecting MOSFETs optimized for R_DS(on), thermal performance, and fault current rating - a key differentiator from fully integrated switch solutions.

How does the FUSB3317V6AMNWTWG handle dead-battery operation?

The FUSB3317V6AMNWTWG implements hardware-enforced dead-battery mode: when VDD is absent or below 2.7 V, the device autonomously enables 5 V/500 mA VBUS sourcing using internal charge pump and regulation circuitry - independent of host MCU state. This ensures immediate charging capability for deeply discharged devices, and the FUSB3317V6AMNWTWG exits this mode automatically upon VDD stabilization.

What is the I²C address range supported by the FUSB3317V6AMNWTWG?

The FUSB3317V6AMNWTWG supports six fixed I²C slave addresses: 0x22, 0x23, 0x24, 0x25, 0x26, and 0x27. Address selection is determined by internal bond options and cannot be changed via software or external pins. This enables up to six FUSB3317V6AMNWTWG devices on a single I²C bus without address collision - ideal for multi-port USB-C systems like docks or monitors.

Can the FUSB3317V6AMNWTWG operate in both source and sink roles?

Yes, the FUSB3317V6AMNWTWG is a dual-role port (DRP) controller supporting both source (SRC) and sink (SNK) configurations. Its role is determined dynamically during CC line detection and USB PD negotiation - it can initiate or respond to PD contracts, manage VBUS enablement accordingly, and execute Fast Role Swap upon request. The FUSB3317V6AMNWTWG maintains full PD 3.0/PPS functionality in either role.