EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX14819/MAX14819A Dual IO-Link Master Transceiver with Integrated Framers and L+ Supply Controllers General Description Benefits and Features The MAX14819/MAX14819A low-power, dual-channel, Low-Power Architecture IO-Link master transceiver with sensor/actuator power- 1 (typ) Driver On-Resistance supply controllers is fully compliant with the latest IO-Link 1.9mA (typ) Total Supply Current for 2 Channels and binary input standards and test specifications, IEC Current Limiters with 15mV Sense Voltage 61131-2, IEC 61131-9 SDCI, and IO-Link 1.1.3. This Integrated IO-Link Framer Eliminates Need for master transceiver also includes two auxiliary digital input External UARTs (DI ) channels. Integrated Cycle Timer Relieves Microcontroller The MAX14819/MAX14819A is configurable to operate from Timing-Critical Tasks either with external UARTs or using the integrated fram- High Configurability and Integration Reduce SKUs ers on the IC. Two Auxiliary Type 1/Type 3 Digital Inputs To ease selection of microcontroller, the master transceiver Supports NPN Sensors features frame handlers with UARTs and FIFOs. These Dual 24V Sensor Supply Controllers Include: are designed to simplify time critical control of all IO-Link Large Capacitive Load Charge Capability M-sequence frame types. The MAX14819/MAX14819A 2A and Higher Load Currents also features autonomous cycle timers, reducing the need Integrated Protection Enables Robust Systems for accurate controller timing. Integrated establish-commu- Reverse Polarity Protection on All Interface Pins nication sequencers also simplify wake-up management. Overvoltage Tolerance on All Interface Pins C/Q and DI Fully Compliant with IEC 61131-2 The device message response delay on the MAX14819A C/Q Compliant with IO-Link 1.1.3. can be disabled when using the frame handler and Reverse Current Blocking on L+ and C/Q the MAX14819A features higher L+ thresholds than 65V Absolute Max Ratings for TVS Flexibility the MAX14819. The MAX14819A receivers also feature Glitch Filters for Improved Burst Resilience increased high-frequency signal isolation compared to -40C to +125C Operating Temperature Range the MAX14819. The MAX14819/MAX14819A integrates two low-power Ordering Information appears at end of data sheet. sensor supply controllers with advanced current limiting, reverse current-blocking, and reverse polarity protection IO-Link is a registered trademark of Profibus User Organization capability to enable low-power robust solutions. (PNO). The MAX14819/MAX14819A is available in a 48-pin (7mm x 7mm) TQFN package and is specified over the extended -40C to +125C temperature range. Applications IO-Link Master Systems IO-Link Gateways 19-8744 Rev 3 3/201F 100 MAX14819/MAX14819A Dual IO-Link Master Transceiver with Integrated Framers and L+ Supply Controllers Typical Operating Circuit 24V 10F 3.3V 5V 1F REGEN G1A SN1A SN2A G2A L+A VL V5 VCC MAX12930 IRQ C CQA 3.3V 5V 330pF SPI MAX14819 MAX14931 MAX14819A 100 XI DIA 14.7456MHz XO 3.3V CLKO RXRDYA/LD1A A0 A1 TXA TXENA GND RXERRA/LD2A CLKI THE MAX14819/MAX14819A IS A DUAL-CHANNEL MASTER TRANSCEIVER. ONLY ONE CHANNEL IS SHOWN HERE. OPERATED WITH INTERNAL IO- LINK FRAMER. Functional Diagram V V REGEN V G1A G1B SN1A SN1B SN2A SN2B G2A G2B L 5 CC REG MAX14819 MAX14819A XI L+ SUPPLY CONTROLLER XO L+A XTAL ESTABLISH OSCILLATOR CLKI L+B COMM CLKO RXA RXB CQA TXENA TXENB CQB DRIVER TXA TXB RXERRA/LD2A RXERRB/LD2B FRAME HANDLER RXRDYA/LD1A DIA RXRDYB/LD1B DIB IRQ SYNC CYCLE TIMER SDI SPI SDO CHANNEL A REGISTERS SCLK CHANNEL B CS A1 A0 GND LIB LIA Maxim Integrated 2 www.maximintegrated.com