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The RT7204E is a highly integrated, programmable controller that offers multi-protocol support and features high-precision shunt regulators for constant voltage (CV) and constant current (CC) regulation. An embedded MCU is designed to handle customized functions with flexibility, ensuring compatibility with USB PD protocol, Universal Fast Charging Specification (UFCS), and proprietary protocols via the CC1, CC2, D+, and D- interface.
This controller is specifically designed for off-line AC-DC converters to achieve the high power density of a fast charging system. The RT7204E is equipped with rectification detection to sense the AC input voltage and adaptively configure the power rating. Additionally, it monitors the PWM switching state to detect AC OFF conditions. For safety considerations, the RT7204E provides comprehensive protections, including Limited Power Source (LPS) protection and precise internal Over-Temperature Protection (OTP). Furthermore, the RT7204E can also share the output power through I2C communication for multi-port applications.
The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 105°C.

Applications

  • USB Type-C Controller in Source Applications for Single-Port or Multi-Port Charger / Adapters of Smartphone, Tablet, Notebook, and Other Electronics
Key Spec.
RT7204E
Status Active
Policy Manager Integrated
Alternate Mode No
PD Version PD3.1
MCU Integrated Yes
Power Role Provider
Data Role DFP
External Power Path Control N-MOSFET Driver
Internal Power Path VCONN 5V 20mA
Iq (Typ) (μA) 750
Realtime VBUS Monitoring Yes
Dead Battery Support No
Max Output Voltage (V) 21
Syn. Rectifier No
CC Pins CC1;CC2
VBUS Discharge By VBUS
Features Constant-Current Regulation;I2C;OCP;OVP;SCP;UVP
Package Type WQFN4x4-24
Features
  • Protocol Support
    ► USB PD 3.1 and PPS
    ► Universal Fast Charging Specification (UFCS)
    ► Proprietary Protocols
  • Highly Integrated
    ► Suited for 3V to 21V VDD Range
    ► Built-In Shunt Regulators for Constant Voltage and Constant Current Control
    ► Built-In 11-bit Analog-to-Digital Converter (ADC)
    ► Built-In Linear Regulator
    ► Built-In Blocking N-MOSFET Driver with Soft-Start for Capacitive Load
    ► VDD Quick Discharge for Output Capacitor
    ► Built-In Output Bleeder for Quick VBUS Discharge
    ► Support High-Side Current Sensing
    ► Support Programmable Cable Compensation
    ► Support Input Voltage (VIN) Detection
    ► Support Slave I2C Communication
    ► Built-In VCONN Power and Switches
    ► <5mA Operating Current in Normal Mode
    ► <2mA Operating Current in Idle Mode
    ► <1mA Operating Current in Green Mode
  • Protection
    ► VDD Adaptive Output Overvoltage Protection
    ► VDD Adaptive Undervoltage Protection
    ► USBP Undervoltage Protection
    ► CC1/CC2/D+/D-/RT/VTR/GPIO Overvoltage Protection
    ► Short-Circuit Protection
    ► Overcurrent Protection
    ► Constant Current Protection
    ► Over-Temperature Protection
    ► Limited Power Source (LPS) Protection
    ► Internal Over-Temperature Protection
Datasheet
TitleLast UpdateDownload
High-Integration USB Multi-Protocol Controller with Rectification Detection2024/05/28
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