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USB PD Type-C or Proprietary Protocols (e.g.
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
Protocol Support
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 16KB
and an SRAM of 3KB
Built-in Synchronous Rectifier Controller and Driver
Built-in Charge Pump for a Wide VDD Operation Range of 3V to 22V
Built-in Bi-direction Function for Programmable Constant-Voltage and
Constant-Current Control
Built-in Internal Feedback Compensation
Built-in Dual Shunt Regulators with Respectively 11-bit and 10-bit DAC
Programmable Reference Voltages for CV and CC Control
Built-in 10-bit Analog-to-Digital Converter (ADC)
Programmable Linear 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 Constant-Current Protection
Firmware-Programmable Over-Current Protection
Firmware-Programmable Over-Temperature Protection
High-Integration USB PD Controller with Internal Feedback Compensation and ,Synchronous Rectification for ZVS Control
The RT7208EB is a programmable USB PD controller with built-in functions of ,synchronous rectification, bi- direction control and internal feedback ,compensation. The controller MCU handles various proprietary protocols via the ,D+/D- interface and supports USB PD Type-C via the CC1/CC2 pins.,,The RT7208EB provides the highly integrated solution for the off-line high ,power density AC-DC converter by utilizing the zero-voltage switching (ZVS) on ,main switch. This is accomplished by built-in compensation for feedback control ,to regulate output voltage and current. In order to reduce usage of external ,components, the controller is built-in with a synchronous rectification ,controller, and integrated with diverse functions and protections. These ,features improve the efficiency as well as the safety of a power converter.,,In the IC, an internal synchronous rectifier controller can optimize ,efficiency and provide safe operation in both continuous-conduction mode (CCM) ,and discontinuous -conduction mode (DCM) under a wide output voltage range of ,3.0V to 22V.,,Moreover, a dual operational amplifier with the digital- to-analog converter ,(DAC) is embedded for voltage- loop and current-loop regulation when ,programming the constant-voltage (CV) and constant-current (CC) regulation in ,high precision.,,
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