NCP81239中文资料4 开关降压/升压控制器，USB供电和 Type-C 应用数据手册ONSEMI规格书

描述 Description

The NCP81239 USB Power Delivery (PD) Controller is a synchronous buck boost that is optimized for converting battery voltage or adapter voltage into power supply rails required in notebook, tablet, and desktop systems, as well as many other consumer devices using USB PD standard and C−Type cables. The NCP81239 is fully compliant to the USB Power Delivery Specification when used in conjunction with a USB PD or C−Type Interface Controller.NCP81239 is designed for applications requiring dynamically controlled slew rate limited output voltage that require either voltage higher or lower than the input voltage. The NCP81239 drives 4 NMOSFET switches, allowing it to buck or boost and support the consumer and provider role swap function specified in the USB Power Delivery Specification which is suitable for all USB PD applications. The USB PD Buck Boost Controller operates with a supply and load range of 4.5 V to 28 V.

特性 Features

• 4.5 V to 28 V operating range
• Wide operating range for various applications
• I2C interface
• Allows for uC to interface to device to meet USB-PD power requirements
• Switching frequency from 150 kHz to 1200 kHz
• Optimize efficiency and size trade-off
• Slew rate control during transition
• Allow easy implementation for USB-PD specification
• Supports USB-PD, QC2.0, and QC3.0 profiles
• Overvoltage and overcurrent protection

应用 Application

• Consumer
• Computing
• Point of Sales
• USB Type-C
• USB PD
• Desktop
• Hubs
• Docking Station
• 充电宝
• Car charger

简介

NCP81239属于集成电路（IC）的DC-DC开关控制器。由制造生产的NCP81239DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。