RT7207KB
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.
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
Built-in Charge Pump for a Wide V
DD
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
Ordering Information
RT7207KB
-
Programmed Firmware Code AABBX
AA : Application Code
BB : Model Code
X : Customer Approved Version Code
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)
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
Note :
The products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
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.
Suitable for use in SnPb or Pb-free soldering processes.
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7207KB-00
December 2018
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
