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The RT7882 is a USB Type-C Power Delivery (USBC PD) and PWM buck-boost controller with highly integrated functions and flexibility for USB PD provider applications. The IC has an embedded ARM CortexTM-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.
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 ► VCONN 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
AnyPowerTM for Constant Voltage Output and Constant Current Output
PD Safe® ► Adjustable Converter Input Overcurrent Limit (INOC) ► 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 ► CC1/2, D+/D- 25V Tolerant
Cable Voltage Drop Compensation for VBUS
Switching Frequency Synchronization for Better EMI
Adjustable Gate Drive Current for Better EMI
Firmware-based Functions ► VIN De-Rating and Power Sharing
Master and Slave I2C Interfaces, LED Drivers, GPIOs
Built-in Output Bleeders for Quick VBUS Discharge
Built-in Charge Pump for Driving Cost-Effective N-MOSFETs
Built-in Internal LDO
Online Firmware Update via Slave I2C Interface or CC1/2 Interface
Available in WQFN-48L 6x6 Package
USB PD PD3.1/PPS Certification Passed (TID 8011)
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