RT7803

MCU-Integrated USB Type-C Port Controller

The RT7803 is a USB Power Delivery (USB PD) controller with highly integrated functions for desktop PC, monitor, or any other devices with USB Type-C (USB-C) receptacle. It is designed to embed ARM Cortex–M0 MCU so as to facilitate various functions of communication protocol, protections and customized requirements. The RT7803 provides a general USB Type−C port to pass SBU signal.The recommended junction temperature range is-40°C to 105°C, and the ambient temperature range is -40°C to 85°C.

Applications

Desktop PCs, LCD Monitors, Wireless Speakers, and Docking Stations

Key Spec.
	RT7803
Status	Active
Policy Manager	Integrated
Alternate Mode	Yes
PD Version	NA;PD3.1
MCU Integrated	Yes
Power Role	DRP
Data Role	Dual Role
External Power Path Control	GPIO
Internal Power Path	VCONN 1.5W
Iq (Typ) (μA)	7500
Realtime VBUS Monitoring	Yes
Dead Battery Support	Yes
Syn. Rectifier	No
CC Pins	YES
VBUS Discharge	By VBUS
Interface	OVP Switch
Features	I2C;VBUS OVP;VBUS UVP
Package Type	WQFN4x4-32
Outline Dimension, Footprint, Drawing	Download

Features

Embedded ARM Cortex–M0 MCU with 10.8MHz Oscillator
Support USB Type-C Power Delivery Rev 3.2 (TID: 13507)
Power Role Support: Source, Sink, and Dual Role Power (DRP)
Support Dead-Battery Rd
Integrated VCONN Switch for CC1/2, Supply Power up to 1.5W
VBUS/VCONN Monitor
SBU Switch for AUX_P/N Polarity Swap
VBUS Control
- Two Power Path Enable Controls
I²C Master / Slave I²C (400kHz) Interfaces
Adequate Functional I/O Pins
Online Firmware Update via Slave I²C Interface or CC1/CC2 Interface
High Voltage Tolerant
- CC Pin and SBU Pin Tolerant up to 20V
Protection Feature
- Moisture Detection on SBU Pin

Datasheet
Title	Version	Last Update	Download
RT7803: MCU-Integrated USB Type-C Port Controller	Initial Release	2025/11/28

Please confirm with our distributor or sales representative for actual stock status.