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RT7208EB

Richtek

High-Integration USB PD Controller

RT7208EB High-Integration USB PD Controller with Internal Feedback Compensation and Synchronous Rectification for ZVS C...


RT7208EB

Richtek


Octopart Stock #: O-1518194

Findchips Stock #: 1518194-F

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Description
RT7208EB High-Integration USB PD Controller with Internal Feedback Compensation and Synchronous Rectification for ZVS Control General Description The RT7208EB is a programmable USB PD controller with built-in functions of synchronous rectification, bidirection control and internal feedback compensation. The controller MCU handles various propriet
More View ary 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 digitalto-analog converter (DAC) is embedded for voltageloop and current-loop regulation when programming the 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 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 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 Copyright © 2021 Richtek Technolog






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