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MAX14820 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX14820 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 29 page MAX14820 IO-Link Device Transceiver ����������������������������������������������������������������� Maxim Integrated Products 1 19-5787; Rev 4; 1/12 General Description The MAX14820 transceiver is suitable for IO-Link® devices and 24V binary sensors/actuators. All specified IO-Link data rates are supported. In IO-Link applica- tions, the transceiver acts as the physical layer interface to a microcontroller running the data-link layer protocol. Additional 24V digital inputs and outputs are provided. Two internal linear regulators generate common sensor and actuator power requirements: 5V and 3.3V. On-board C/Q and DO drivers are independently config- urable for push-pull, high-side (PNP), or low-side (NPN) operation. The device detects the IO-Link C/Q wake-up condition and generates a wake-up signal on the active- low WU output. The C/Q and DI inputs have selectable current loads for use in actuators. An SPI™ interface allows configuration and monitoring of the devices. Extensive alarm conditions are detected and communicated through the IRQ output and the SPI inter- face. The devices feature reverse-polarity, short-circuit, and thermal protection. All power lines are monitored for undervoltage conditions. The C/Q driver is specified for sinking/sourcing 300mA. The DO driver is specified for sinking/sourcing 135mA. The device is available in a 4mm x 4mm, 24-pin TQFN package, and is specified over the extended -40NC to +85NC temperature range. Applications IO-Link Sensors Industrial Sensors and Actuators IO-Link Actuators Features S IO-Link Specification v.1.0 and v.1.1 Physical Layer Compliant S Supports COM1, COM2, and COM3 Data Rates S IO-Link Device Wake-up Detection S Push-Pull, High-Side, or Low-Side Outputs S 300mA Specified C/Q Output Drive S 1µF C/Q and DO Load-Drive Capability S Auxiliary 24V, 135mA Digital Output S Auxiliary 24V Digital Input S Optional 6mA/7mA Current Loads at Both 24V Inputs S 5V and 3.3V Linear Regulators S Reverse-Polarity Protected 24V Supply Output S EMI Emission Control Through Slew-Controlled Driver S SPI Interface for Configuration and Monitoring S 2.5V to 5V Logic Interface Levels S Reverse-Polarity and Short-Circuit Protection on All 24V Inputs/Outputs S High-Temperature Warning and Thermal Shutdown S Extensive Fault Monitoring and Reporting S -40NC to +85NC Operating Temperature Range S 4mm x 4mm TQFN Package IO-Link is a registered trademark of Profibus User Organization (PNO). SPI is a trademark of Motorola, Inc. Ordering Information appears at end of data sheet. Typical Operating Circuit For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX14820.related EVALUATION KIT AVAILABLE 1 2 4 3 10kΩ MAX14820 0.8Ω 1F 0.1F 1F 0.1F VCC UV GPIO2 LDOIN DO SPI C/Q L+ L- GND DI GND VP V5 VCC LDO33 VL TXQ MICROCONTROLLER WU IRQ RX RX TXC TX TXEN RTS LO GPIO1 3.3V 5V For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. |
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