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MAX14819 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX14819 Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 70 page  General Description The MAX14819 low-power, dual-channel, IO-Link® master transceiver with sensor/actuator power-supply con- trollers is fully compliant with the latest IO-Link and binary input standards and test specifications, IEC 61131-2, IEC 61131-9 SDCI, and IO-Link 1.1.2. This master transceiver also includes two auxiliary digital input (DI_) channels. The MAX14819 is configurable to operate either with external UARTs or using the integrated framers on the IC. To ease selection of microcontroller, the master transceiver features frame handlers with UARTs and FIFOs. These are designed to simplify time critical control of all IO-Link M-sequence frame types. The MAX14819 also features autonomous cycle timers, reducing the need for accu- rate controller timing. Integrated establish-communication sequencers also simplify wake-up management. The MAX14819 integrates two low-power sensor supply controllers with advanced current limiting, reverse current blocking, and reverse polarity protection capability to enable low-power robust solutions. The MAX14819 is available in a 48-pin (7mm x 7mm) TQFN package and is specified over the extended -40°C to +125°C temperature range. Applications ● IO-Link Master Systems ● IO-Link Gateways Benefits and Features ● Low-Power Architecture • 1Ω (typ) Driver On-Resistance • 1.9mA (typ) Total Supply Current for 2 Channels • Current Limiters with 15mV Sense Voltage ● Integrated IO-Link Framer Eliminates Need for External UARTs • Integrated Cycle Timer Relieves Microcontroller from Timing-Critical Tasks ● High Configurability and Integration Reduce SKUs • Two Auxiliary Type 1/Type 3 Digital Inputs • Supports npn Sensors • Selectable Driver Current: 100mA to 500mA ● Integrated Protection Enables Robust Systems • Reverse Polarity Protection on All Interface Pins • C/Q and DI Fully Compliant with IEC 61131-2 • C/Q Compliant with IO-Link 1.1.2 • Reverse Current Blocking on L+ and C/Q • 65V Absolute Max Ratings for TVS Flexibility • Dual 24V Sensor Supply Controllers Include: Large Capacitive Load Charge Capability 2A and Higher Load Currents • Glitch Filters for Improved Burst Resilience • -40°C to +125°C Operating Temperature Range Ordering Information appears at end of data sheet. IO-Link is a registered trademark of Profibus User Organization (PNO). 19-8744; Rev 0; 3/17 10µF 24V 1µF VL V5 VCC G1A SN1A SN2A G2A L+A 330pF XI XO CLKO CLKI A0 A1 GND MAX14819 µC SPI 14.7456MHz CQA DIA REGEN TXA TXENA THE MAX14819 IS A DUAL-CHANNEL MASTER TRANSCEIVER. ONLY ONE CHANNEL IS SHOWN HERE. OPERATED WITH INTERNAL IO-LINK FRAMER. 3.3V RXRDYA/LD1A RXERRA/LD2A MAX12931 MAX12930 IRQ 3.3V 5V 3.3V 100Ω MAX14819 Dual IO-Link Master Transceiver with Integrated Framers and L+ Supply Controllers Typical Operating Circuit EVALUATION KIT AVAILABLE |
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