EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts    FUSB302BMPX
FUSB302BMPX

FUSB302BMPX

ON Semiconductor
Common USB Type-C controller/CC logic IC used for compact CC negotiation and USB port control.
Active36,586 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The FUSB302BMPX is a programmable USB Type-C controller that supports CC logic and USB Power Delivery (PD) 2.0. It allows engineers to add USB-C functionality to legacy designs with minimal external components, handling autonomous Dual-Role Port (DRP) toggling and BMC physical layer protocols via an I2C interface.

Why Choose This Part

It features a highly flexible architecture that offloads the complex timing of the USB-C CC state machine from the main application processor. The wide supply range of 2.7V to 5.5V and tiny 2.5mm x 2.5mm footprint make it ideal for space-constrained, battery-powered electronics.

Applications

USB-C Power Delivery Adapters
Enabling negotiation of higher voltage and current profiles for power-hungry devices.
Mobile and Handheld Devices
Providing ultra-low power standby (25uA) for smartphones and tablets using the compact MLP-14 package.
Dead Battery Port Controllers
Utilizing the integrated dead battery support to allow charging even when the system controller is unpowered.
Dual-Role Ports (DRP)
Managing ports that must switch between host (Source) and device (Sink) roles dynamically.

Key Specifications

Function Controller
Protocol USB
Interface USB
Standards USB 3.1
Package / Case 14-WFQFN Exposed Pad
Current - Supply 25uA
Voltage - Supply 2.8V ~ 5.5V
Operating Temperature -40degC ~ 125degC
Supplier Device Package 14-MLP (2.5x2.5)

Getting Started

Development is typically performed using the FUSB302B evaluation board and the ON Semiconductor PD stack firmware. Engineers interface with the chip over I2C to manage policy engine states and monitor the CC1/CC2 lines for attachment events.

FUSB302 Family

Part NumberDifferenceStock
FUSB302BUCX (onsemi) UCX 3,809
FUSB302BNX (On Semiconductor) NX —
Also available as: FUSB302
The 2026 Embedded Online Conference