RT7882
USB Type-C PD and PWM Buck-Boost Controller with
AnyPowerTM and PD Safe® Features
General Description
The RT7882 is a USB Type-C Power Delivery (USBC
PD) and PWM buck-boost controller with highly
Features
⚫ Support USB Type-C Power Delivery (PD)
Provider
⚫ Type-C, USB PD and Communication Protocols
Compliant with USB PD 3.1 Specification, USB
Type-C Cable and Connector Specification 2.1
integrated functions and flexibility for USB PD provider
TM
applications. The IC has an embedded ARM Cortex
-
M0 MCU, which handles various functions of
communication protocol, smart control of the PWM
converter, firmware-based protections, and customized
functions. The IC features hardware-based protections,
such as inductor peak current limit, VBUS overvoltage
protection (VBUS OVP), VIN undervoltage protection
(VIN UVP), VIN overvoltage protection (VIN OVP), VO
undervoltage protection (VO UVP), and VCONN
current-limit protection, so that the protections have
faster responses and can still function even when the
MCU is not activated. The RT7882 can offer an
excellent USB PD solution for a USB-PD Provider
application with few external components and simple
PCB layout.
V
CONN
Output 100mW
Support Other Proprietary Communication
Protocols through Internal MCU, DP and DM
Pins
⚫ Integrated PWM Buck-Boost Controller
Wide Input Voltage Range: 4.5V to 30V
Wide Output Voltage Range: 3.3V to 21V
Peak-Current Mode PWM Operation
Internal Compensation for CV, CC
Programmable PWM Switching Frequency
(200kHz to 600kHz)
Pulse-Skipping Mode for Light-Load
Efficiency; Selectable Forced CCM Operation
TM
⚫ AnyPower for Constant Voltage Output and
Ordering Information
Constant Current Output
®
⚫ PD Safe
RT7882
Adjustable Converter Input Overcurrent Limit
(INOC)
Package Type
QW: WQFN-48L 6x6 (W-Type)
(Exposed Pad) (Option 1)
Fast Response VIN OVP/UVP Detection
Programmable VBUS OVP and VO UVP
Fast Response OVP for CC1/2 and D+/D-
Adjustable External OTP/Internal OTP
CC1/2 Output Current Limit
Lead Plating System
G: Green (Halogen Free and Pb Free)
Note:
CC1/2, D+/D- 25V Tolerant
Richtek products are:
⚫ Cable Voltage Drop Compensation for VBUS
⚫ Switching Frequency Synchronization for Better
EMI
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
⚫ Adjustable Gate Drive Current for Better EMI
⚫ Firmware-based Functions
Applications
⚫ USB Type-C Power Delivery Car Charger
VIN De-Rating and Power Sharing
2
⚫ Master and Slave I C Interfaces, LED Drivers,
GPIOs
⚫ Built-in Output Bleeders for Quick VBUS
Discharge
Copyright © 2023 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7882-00
April 2023
www.richtek.com
1
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