RT7207KB

Copyright © 2018 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS7207KB-00

December

2018

www.richtek.com

1

Highly Integration USB PD Controller with Synchronous

Rectification

General Description

The RT7207KB 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 RT7207KB 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.

Ordering Information

RT7207KB

Package Type

QW : WQFN-24L 4x4 (W-Type)

(Exposed Pad-Option 2)

Lead Plating System

G : Green (Halogen Free and Pb Free)

RT7207KB Version

(Refer to Version Table)

-

Programmed Firmware Code AABBX

AA : Application Code

BB : Model Code

X : Customer Approved Version Code

Note :

The products are :



RoHS compliant and compatible with the current

requirements of IPC/JEDEC J-STD-020.



Suitable for use in SnPb or Pb-free soldering processes.

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 2kB



Built-in Synchronous Rectifier Controller and

Driver



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

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.