EVALUATION KIT AVAILABLE MAX14820 IO-Link Device Transceiver General Description Features The MAX14820 transceiver is suitable for IO-Link S IO-Link Specification v.1.0 and v.1.1 Physical Layer devices and 24V binary sensors/actuators. All specified Compliant IO-Link data rates are supported. In IO-Link applica- S Supports COM1, COM2, and COM3 Data Rates tions, the transceiver acts as the physical layer interface S IO-Link Device Wake-up Detection to a microcontroller running the data-link layer protocol. Additional 24V digital inputs and outputs are provided. S Push-Pull, High-Side, or Low-Side Outputs Two internal linear regulators generate common sensor S 300mA Specified C/Q Output Drive and actuator power requirements: 5V and 3.3V. S 1F C/Q and DO Load-Drive Capability On-board C/Q and DO drivers are independently config- urable for push-pull, high-side (PNP), or low-side (NPN) S Auxiliary 24V, 135mA Digital Output operation. The device detects the IO-Link C/Q wake-up S Auxiliary 24V Digital Input condition and generates a wake-up signal on the active- low WU output. The C/Q and DI inputs have selectable S Optional 6mA/7mA Current Loads at Both 24V Inputs current loads for use in actuators. S 5V and 3.3V Linear Regulators An SPI interface allows configuration and monitoring of S Reverse-Polarity Protected 24V Supply Output the devices. Extensive alarm conditions are detected and communicated through the IRQ output and the SPI inter- S EMI Emission Control Through Slew-Controlled Driver face. The devices feature reverse-polarity, short-circuit, S SPI Interface for Configuration and Monitoring and thermal protection. All power lines are monitored for S 2.5V to 5V Logic Interface Levels undervoltage conditions. The C/Q driver is specified for sinking/sourcing 300mA. S Reverse-Polarity and Short-Circuit Protection on All The DO driver is specified for sinking/sourcing 135mA. 24V Inputs/Outputs The device is available in a 4mm x 4mm, 24-pin TQFN S High-Temperature Warning and Thermal Shutdown package, and is specified over the extended -40NC to S Extensive Fault Monitoring and Reporting +85NC temperature range. S -40NC to +85NC Operating Temperature Range Applications S 4mm x 4mm TQFN Package IO-Link Sensors Industrial Sensors and Actuators IO-Link Actuators Typical Operating Circuit 10 5V 3.3V 1F 0.1F 1F 10k 0.8 V CC V TXQ LDO33 V LDOIN V L 5 P GPIO2 UV V CC 1F SPI L+ DO IRQ WU MAX14820 MICROCONTROLLER 1 RX RX 2 TX TXC C/Q 4 3 RTS TXEN L- GPIO1 LO GND DI GND IO-Link is a registered trademark of Profibus User Organization (PNO). Ordering Information appears at end of data sheet. SPI is a trademark of Motorola, Inc. For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX14820.related For pricing, delivery, and ordering information, please contact Maxim Direct at 19-5787 Rev 6 3/14 1-888-629-4642, or visit Maxim Integrateds website at www.maximintegrated.com.MAX14820 IO-Link Device Transceiver Functional Diagram LDO33 V LDOIN V 5 P UV UV MONITOR 3.3V LDO 5V LDO V CC V L CS SDI STATUS AND SDO CONFIGURATION SCLK IRQ RX FILTER PROTECTION C/Q C/Q WAKE-UP LOAD WU DETECT DRIVER TXQ TXC PROTECTION GND TXEN LI PROTECTION DI DI LOAD DRIVER LO PROTECTION DO MAX14820 DoEn Maxim Integrated 2