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Highly Integration USB PD Controller with Synchronous Rectification

RT7207K

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The RT7207K is a programmable controller with integrated synchronous rectification control. Its internal MCU handles various proprietary protocols via the D+/D- interface and supports USB PD Type-C via the CC1/CC2 pins.

The RT7207K provides high integration for high power density off-line AC-DC converter designs. In addition to saving external components, and through the built-in synchronous rectification controller and integration of diverse functions and protections, it not only improves efficiency but also enhances safety.

An internal synchronous rectifier controller can optimize efficiency and provide safe operate in both continuous-conduction mode (CCM) and discontinuous-conduction mode (DCM) even in the condition of a wide output voltage range of 3.0V to 21V.

Dual operational amplifiers with respectively the digital-to-analog converter (DAC) programmable reference voltages are included for voltage-loop and current-loop regulation to provide programmable constant-voltage (CV) and constant-current (CC) regulation in high precision.

Applications

  • USB PD Type-C or Proprietary Protocols (e.g., FCP, SCP and AFC)Chargers/Adapters for Smart Phones, NBs, Tablets and All Other Electronics.
  • USB PD Extension Cores with Offline AC-DC Converters.
Key Spec.
RT7207K RT7207KL
Status Active Active
Policy Manager Integrated Integrated
Alternate Mode No No
PD Version PD2.0;PD3.0;PPS PD2.0;PD3.0;PPS
MCU Integrated Yes Yes
Power Role Provider Provider
Data Role DFP DFP
External Power Path Control N-MOSFET Driver N-MOSFET Driver
Iq (Typ) (μA) 750 750
Realtime VBUS Monitoring Yes Yes
Max Output Voltage (V) 22 13
Syn. Rectifier Yes Yes
CC Pins CC1;CC2 CC1;CC2
VBUS Discharge By BLD By BLD
Features Adjustable Current Limit;Constant-Current Regulation;OCP;OVP;SCP;UVP;VBUS OVP;VBUS UVP Adjustable Current Limit;Constant-Current Regulation;OCP;OVP;SCP;UVP;VBUS OVP;VBUS UVP
Package Type WQFN4x4-24 WQFN4x4-24
Features
  • Protocol Support
    ► USB PD2.0/PD3.0 and PPS
    ► Proprietary Protocols
  • Highly Integrated
    ► Embedded MCU with an Mask ROM of 32kB, an OTP-ROM of 8kB, and an SRAM of 2kB
    ► Built-in Synchronous Rectifier Controller and Driver
    ► Built-in Charge Pump for a Wide VDD Operation Range of 3V to 21V
    ► Built-in Shunt Regulators for Programmable Constant-Voltage and Constant-Current Control
    ► Built-in 10-bit Analog-to-Digital Converter (ADC)
    ► Programmable Cable Compensation
    ► BLD Pin for Quick Discharge of Output Capacitor
    ► VBUS Pin for Detection VBUS Voltage and Quick Discharge of VBUS Capacitor
    ► USBP Pin for Direct Drive of External Blocking N-MOSFET
    ► Power-Saving Mode in Standby Mode
  • Protection
    ► Adaptive Output Over-Voltage Protection
    ► Adaptive Under-Voltage Protection
    ► CC1/CC2/D+/D- Over-Voltage Protection
    ► Firmware-Programmable Over-Current Protection
    ► Firmware-Programmable Over-Temperature Protection
Datasheet
TitleLast UpdateShareDownload
Highly Integration USB PD Controller with Synchronous Rectification2019/01/08
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