原标题：TI TPS65982USB Type-C和PD控制器评估方案

　　TI公司的tps65982是USB Type-C和PD控制器,在USB Type-C连接器中提供电缆插头和定位检测,采用USB PD协议通信.当电缆检测和USB PD协商完成,TPS65982将提供电源通路和配置模式,以用于供电,受电和供电/受电,提供500mA,1.5A或3A电源.主要用在笔记本电脑,平板电脑,坞站系统,充电器,USB PD使能的总线供电设备,DisplayPort, Thunderbolt™和HDMI.本文介绍了TPS65982主要特性,功能框图和几种应用电路,以及评估模块TPS65982-EVM主要特性,电路图,材料清单和PCB设计图.

　　The TPS65982 is a stand-alone USB Type-C & Power Delivery (PD) controller providing cable plug and orientation detection at the USB Type-C connector. Upon cable detection, the TPS65982 communicates on the CC wire using the USB PD protocol. When cable detection and USB PD negotiation are complete, the TPS65982 enables the appropriate power path and configures alternate mode settings for internal and (optional) external multiplexers.

　　The mixed-signal front end on the CC pins advertises default (500 mA), 1.5 A or 3 A for Type-C power sources, detects a plug event and determines the USB Type-C cable orientation, and autonomously negotiates USB PD contracts by adhering to the specified bi-phase marked coding (BMC) and physical layer (PHY) protocol.

　　The port power switch provides up to 3 A downstream at 5 V for legacy and Type-C USB power. An additional bi-directional switch path provides USB PD power up to 3 A at a maximum of 20 V as either a source (host), sink (device), or source-sink.

　　The TPS65982 is also an Upstream-Facing Port (UFP), Downstream-Facing Port (DFP), or Dual-Role Port for data. The port data multiplexer passes data to or from the top or bottom D+/D– signal pair at the port for USB 2.0 HS and has a USB 2.0 Low Speed Endpoint. Additionally, the Sideband-Use (SBU) signal pair is used for auxiliary or Alternate Modes of communication (DisplayPort or Thunderbolt™, for example).

　　The power management circuitry utilizes a 3.3 V inside the system and also uses VBUS to start up and negotiate power for a dead-battery or no-battery condition.

　　TPS65982主要特性:

　　USB Power Delivery (PD) Controller

　　Mode Configuration for Source (Host), Sink (Device), or Source-Sink

　　Bi-Phase Marked Encoding/Decoding (BMC)

　　Physical Layer (PHY) Protocol

　　Policy Engine

　　Configurable at Boot and Host-Controlled

　　USB Type-C Specification Compliant

　　Detect USB Cable Plug Attach

　　Cable Orientation and Role Detection

　　Assign CC and VCONN Pins

　　Advertise Default, 1.5 A or 3 A for Type-C Power

　　Port Power Switch

　　5-V, 3-A Switch to VBUS for Type-C Power

　　5-V to 20-V, 3-A Bidirectional Switch to or from VBUS for USB PD Power

　　5-V, 600-mA Switches for VCONN

　　Over-Current Limiter, Overvoltage Protector

　　Slew Rate Control

　　Hard Reset Support

　　Port Data Multiplexer

　　USB 2.0 HS Data, UART Data, and Low Speed Endpoint

　　Sideband Use Data for Alternate Modes (DisplayPort and Thunderbolt™)

　　Power Management

　　Gate Control and Current Sense for External 5-V to 20-V, 5-A Bi-directional Switch (Back-to-Back NFETs)

　　Power Supply from 3.3-V or VBUS Source

　　3.3-V LDO Output for Dead Battery Support

　　BGA MicroStar Junior Package

　　0.5-mm Pitch

　　Through-Hole Via Compatible for All Pins

　　TPS65982应用:

　　• Notebook Computers

　　• Tablets and Ultrabooks

　　• Docking Systems

　　• Charger Adapters

　　• USB PD Hosts, Devices, and Dual-Role Ports

　　• USB PD-Enabled Bus-Powered Devices

　　• DisplayPort, Thunderbolt™ and HDMI

　　图1.TPS65982功能框图

　　图2. TPS65982Type-C和PD充电器应用框图

　　图3. TPS65982双端口笔记本电脑应用框图

　　TPS65982评估模块TPS65982-EVM

　　The TPS65982-EVM allows a simple way to evaluate the TPS65982. The TPS65982-EVM is built with aUSB Type-C receptacle and TPS65982 to detect another TPS65982-EVM or other Type-C host/device viaa USB Type-C cable. The TPS65982 detects the plug event and/or presence of another Type-C producton the CC1 or CC2 pin and provides or consumes power on the VBUS pin. The TPS65982-EVM alsosupports dead battery mode and can be powered by another TPS65982-EVM or other USB Type-C powerprovider. After CC detection and Type-C power is established, the TPS65982 will attempt to negotiate aUSB Power Delivery (PD) contract to provide or consume additional power. After a USB PD contract isnegotiated, the TPS65982 will attempt to enter an Alternate Mode. The TPS65982-EVM can be used toemulate other USB Type-C and PD products, such as a dock, a notebook computer, a tablet, a dongle, anAC charger adapter, and a high-power bus-powered device. The GPIOs of the TPS65982 are routed tothe EVM J2 and J3 headers and can also be used to control external SuperSpeed and DisplayPortmultiplexers.

　　评估模块TPS65982-EVM主要特性:

　　USB Type-C testing and verification

　　USB Power Delivery testing and verification

　　Application Emulation (Notebook, Dock, Dongle, Charger)

　　Powered from single supply and bus-powered capable

　　图4.评估模块TPS65982-EVM外形图(正面)

　　图5.评估模块TPS65982-EVM外形图(背面)

　　评估模块TPS65982-EVM材料清单: