Maxim公司的MAX22513是雙路低功耗IO-Link收發器,具有可選擇的控制接口,內部高效率DC/DC降壓穩壓器,兩個線性穩壓器和集成了用于魯棒通信的浪涌保護.器件還有低開態電阻驅動器(C/Q和DO/DI),可選擇驅動電流限制和過流保護以降低功耗.DC/DC降壓穩壓器提供多達300mA負載電流和可調整輸出電壓(2.5V-12V).而內部線性穩壓器產生5V和3.3V,提供高達50mA電流.MAX22513可通過SPI或I2C接口,靈活接口微控制器,支持全雙工和半雙工SPI.內部的MCLK振蕩器為IO-LINK通信的微控制器提供時鐘源.工作溫度-40℃到 +125℃,主要用在IO-Link傳感器和執行機構裝置以及工業傳感器.本文介紹了MAX22513主要優勢和特性,框圖和I2C接口應用電路圖,半雙工SPI接口應用電路圖以及評估板MAX22513 EVK主要特性,框圖,電路圖,材料清單和PCB設計圖.

The MAX22513 dual-channel low power IO-Link device transceiver features a selectable control interface, internal high-efficiency DC-DC buck regulator, two internal linear regulators, and integrated surge protection for robust communication. The device features low-on resistance drivers (C/Q and DO/DI), selectable driver current limits, and overcurrent protection to reduce power dissipation in small sensor applications.

The DC-DC buck regulator supplies up to 300mA load current and has an adjustable output voltage (from 2.5V to 12V). Internal linear regulators generate 5V and 3.3V, supplying up to 50mA of current.

The MAX22513 can be controlled using SPI or I2C interfaces, providing flexibility for microcontrollers, and extensive control and diagnostic features. Both full-and half-duplex SPI are supported. The internal MCLK oscillator provides a clock source to a microcontroller for IO-Link communication.

The MAX22513 features extensive integrated protection to ensure robust communication in harsh industrial environments. All four IO pins (V24, C/Q, DO/DI, and GND), are reverse voltage protected, short circuit protected, and feature integrated ±1kV/500Ω surge protection.

The MAX22513 is available in a tiny WLP package (4.1mm x 2.1mm) or 28-pin TQFN-EP package (3.5mm x 5.5mm) and operates over the -40℃ to +125℃ temperature range.

MAX22513主要優勢和特性:

High Configurability and Integration Reduces SKU Configurable C/Q and DO/DI Drivers PNP, NPN, and Push-Pull Modes
Individual Slew Rate Control for Drivers
Selectable Driver Current Limit: 50mA to 250mA
Control and Monitoring with I2C or SPI Half- and Full-Duplex SPI Modes
Integrated High-Efficiency DC-DC Buck Regulator Selectable Switching Frequency 921kHz (typ) or 1.229MHz (typ)
300mA (max) Load
Output Voltage from 2.5V to 12V
Internal 5V and 3.3V Linear Regulators
Accurate Oscillator for IO-Link Communication
Integrated Protection Enables Robust Systems Integrated ±1kV/500Ω Surge Protection
Glitch Filters for Improved Burst Resilience
Selectable Overcurrent Configuration
Hot-Plug and Reverse Polarity Protection
-40℃ to +125℃ Operating Temperature Range
Optimized for Small Sensor Designs Low Power Dissipation: 2Ω (typ) On-Resistance for C/Q and DO/DI Drivers
Available in Two Tiny Packages: 28-Pin TQFN-EP (3.5mm x 5.5mm)
WLP (4.1mm x 2.1mm)

MAX22513應用:

IO-Link Sensor and Actuator Devices
Industrial Sensors

圖1.MAX22513框圖

圖2. MAX22513 I2C接口應用電路圖

圖3.9V/150mA DC/DC輸出(12V最小輸入)MAX22513 I2C半雙工SPI接口應用電路圖

評估板MAX22513 EVK

The MAX22513 evaluation kit (EV kit) consists of the evaluation board and software. The EV kit is a fully assembled and tested circuit board that evaluates the MAX22513 IO-Link? device transceiver with integrated DC-DC buck regulators.

The EV kit includes Windows?-compatible software that provides a graphical user interface (GUI) for exercising the features of the MAX22513. The EV kit is connected to a PC through a USB-A-to-micro-B cable.

評估板MAX22513 EVK主要特性:

IO-Link-Compliant Device Transceiver
I/O, I2C, and SPI Interface Terminals
Arduino? Compatible Connector
Windows 10-Compatible Software
USB-PC Connection
Proven PCB Layout
Fully Assembled and Tested

圖4.評估板MAX22513 EVK框圖

圖5.評估板MAX22513 EVK外形圖

圖6.評估板MAX22513 EVK電路圖
評估板MAX22513 EVK材料清單:

圖7.評估板MAX22513 EVK PCB設計圖:頂層絲印

圖8.評估板MAX22513 EVK PCB設計圖:頂層布局

圖9.評估板MAX22513 EVK PCB設計圖:地層

圖10.評估板MAX22513 EVK PCB設計圖:電源層

圖11.評估板MAX22513 EVK PCB設計圖:底層布局

圖12.評估板MAX22513 EVK PCB設計圖:底層絲印
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