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Highly Integrated USB PD Type-C Controller for SMPS

RT7202KJ

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The RT7202KJ is a simple and yet flexible for multipurpose of USB PD controller. By programming, it could operate as a source or a sink.

When used as a source, it could be used in an off-line AC-DC converter, as it integrates shun regulator, constant voltage (CV) and constant current (CC) control loop with programmable reference voltage to meet the specification of Programmable Power Supply (PPS) specification. When combined with external buck or buck boost controller, it could constitute a DC-DC converter, such as a car charger, and could also meet the PPS specification. When used as a sink, it is simple, low cost, yet flexible to use to request required power from a source. If using the RT7202KJ for a sink design, it has I2C interface and two GPIOs for flexible use and could be easily controlled by other MCU which plays a master role.

Applications

  • USB PD Type-C Chargers/Adapters for Smart Phones, NBs, Tablets and All Other Electronics
  • USB PD Extension Cores with Offline AC-DC Converters
Key Spec.
RT7202KJ
Status Active
Policy Manager Integrated
Alternate Mode No
PD Version PD3.0;PPS
MCU Integrated Yes
Power Role DRP
Data Role Dual Role
External Power Path Control N-MOSFET Driver
Internal Power Path Source/Sink 20V 3A
Iq (Typ) (μA) 700
Realtime VBUS Monitoring Yes
Dead Battery Support No
Max Output Voltage (V) 21
Syn. Rectifier No
CC Pins 2
VBUS Discharge By BLD
Features Constant-Current Regulation;OCP;OVP;UVP;VBUS OVP;VBUS UVP
Package Type WQFN4x4-16
Features
  • Protocols Supported
    ► USB PD 2.0 and 3.0 (PPS)
    ► Other Proprietary Protocols
  • Highly Integrated
    ► Embedded MCU with an Mask-ROM of 24kB, an OTP-ROM of 16kB, and an SRAM of 2kB
    ► Embedded BMC Transceiver
    ► Wide VDD Operation Range : 3V to 22V
    ► Built-in Shut Regulator for Constant-Voltage and Constant-Current Regulation
    ► Built-in 10-bit Analog-to-Digital Converter (ADC)
    ► Programmable Cable Compensation
    ► BLD Pin for Quick Discharge of Output Capacitor
    ► USBP Pin for Direct Drive of External Blocking N-MOSFET
    ► Power-Saving Mode in Standby Mode
  • Protection
    ► Adaptive Over-Voltage Protection
    ► Adaptive Under-Voltage Protection
    ► Firmware-Programmable Over-Current Protection
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