RTQ7880A-QT中文资料立锜科技数据手册PDF规格书

General Description

The RTQ7880A-QT is a USB Type-C Power Delivery (USBC

PD) and PWM buck-boost controller with highly

integrated by the specific functions and the flexibility for

USB PD provider applications. The IC has embedded an

ARM CortexTM-M0 MCU so as to handle 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 over-voltage

protection (VBUS OVP), VO under-voltage protection (VO

UVP), and VCONN current limit protection, so that the

protections have faster responses and can still function

properly even when the MCU is not activated. The

RTQ7880A-QT hereby offers an excellent USB PD solution

for a USB-PD Provider application with minimal external

components and simple PCB layout.

特性 Features

 Support USB Type-C Power Delivery (PD) Provider

Application

 AEC-Q100 Grade 2 Qualified

 Operating Ambient Temperature : −40°C to 105°C

 Type-C, USB PD and Communication Protocols

 Compliant with USB PD 3.0 Specification, USB

Type-C Cable and Connector Specification 1.2

 Alternate Mode and VCONN Output

 Support Other Proprietary Communication

Protocols through Internal MCU, DP and DM Pins

 Integrated PWM Buck-Boost Controller

 Wide Input Voltage Range : 4V to 36V

 Peak-Current Mode PWM Operation

 Programmable PWM Switching Frequency

(200kHz to 600kHz)

 Pulse-Skipping Mode for Light-Load Efficiency;

Selectable Forced CCM Operation

 AnyPowerTM for Constant Voltage Output (in 10-Bit

Resolution) and Constant Current (in 9-Bit

Resolution) Output Settings

 PD Safe®

 Adjustable Converter Input Current Limit

 Programmable VBUS OVP and VO UVP

 Adjustable External OTP

 VCONN1/2 Output Current Limit

 Cable Voltage Drop Compensation for VBUS

 Master and Slave I2C Interfaces

 GPIOs for MUX Control or Customized Functions

 Built-in Output Bleeders for Quick VBUS Discharge

 Built-in Charge Pump for Driving Cost-Effective NMOSFETs

 Available in WQFN-48L 6x6 Package

 Online Firmware Update via Slave I2C Interface

 USB PD PD3.0/PPS Certification Passed

(TID 1080016)

Applications

 Automotive USB Type-C Power Delivery Charger