MAX22192
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MAX22192

Octal Industrial Digital Input with Diagnostics and Digital Isolation

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Small Digital Input Device that Translates 8 Industrial Inputs to an Isolated Serialized SPI Output

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $6.84
Features
  • High Integration Reduces BOM Count and Board Space
    • Eight Input Channels with Serializer
    • Integrated Isolation of 600VRMS for 60s (VISO)
    • Operates Directly from Field Supply (7V to 65V)
    • Compatible with 1.8V, 3.3V or 5V Logic
    • 6mm x 10mm GQFN Package
  • Reduced Power and Heat Dissipation
    • Accurate Input-Current Limiters
    • Energyless Field-Side LED Drivers
  • Fault Tolerant with Built-In Diagnostics
    • Input Protection to ±40V with Low-Input Leakage Current
    • Wire-Break Detection
    • Integrated Field-Supply Voltage Monitors
    • Integrated Overtemperature Monitors
    • 5-Bit CRC Code Generation for Error Detection
  • Configurability Enables a Wide Range of Applications
    • Configurable IEC 61131-2 Type 1, 2, 3 Inputs
    • Configurable Input Current-Limiting from 0.5mA to 3.4mA
    • Selectable Input Glitch Filter
    • Capable of Daisy-Chaining Other Field-Side Devices Sharing Isolated SPI
  • Robust Design
    • ±8kV Contact ESD and ±15kV Air-Gap ESD Using Minimum 1kΩ Resistor
    • ±1kV Surge Tolerant Using Minimum 1kΩ Resistor
    • -40°C to +125°C Ambient Operating Temperature
Additional Details
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The MAX22192 is an IEC 61131-2 compliant industrial digital input device with integrated digital isolation. The MAX22192 translates eight, 24V current-sinking, industrial inputs to an isolated serialized SPI-compatible output that interfaces with 1.71V to 5.5V logic voltage. A current-setting resistor allows the MAX22192 to be configured for Type 1, Type 2, or Type 3 inputs. For proximity switches, the field-wiring is verified using the wire break feature. When wire break is enabled, the active-low LFAULT output is asserted and a register flag set if the input current drops below the wire break threshold for more than 20ms. Additional diagnostics that assert active-low LFAULT include: overtemperature protection, low 24V field supply, 24V field supply missing, and CRC communication error.

For robust operation in industrial environments, each input includes a programmable glitch filter. The filter delay on each channel can be independently programmed to one of eight values between 50µs and 20ms, or filter bypass.

The MAX22192 has an isolated 4-pin SPI interface, and in addition uses isolated active-low LLATCH input for synchronizing input data across multiple devices in parallel, and isolated active-low LFAULT output for instantly alerting the host of any diagnostic issues. The digital signals with a name starting with L are logic-side signals, and the digital signals with a name starting with F are field-side signals.

The MAX22192 field-side accepts a single 7V to 65V supply to the VDD24F pin. When powered by the field supply, the MAX22192 generates a 3.3V output on the VDD3F pin from an integrated LDO regulator, which can provide up to 25mA of current for external loads in addition to powering the MAX22192. Alternatively, the MAX22192 can be powered from a 3.0V to 5.5V supply connected to the VDD3F pin. The logic-side of the MAX22192 is powered from a single 1.71V to 5.5V supply to the VDDL pin to interface with 1.8V, 3.3V, or 5V logic levels.

The MAX22192 has an isolation rating of 600VRMS for 60 seconds and is available in a 70-pin GQFN package with 2.3mm clearance and creepage. The package material has a minimum comparative tracking index (CTI) of 600V, which gives it a group I rating in creepage tables.

Applications

  • Industrial Automation
  • Process Automation
  • Programmable Logic Controllers
Part Models 2
1ku List Price Starting From $6.84

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX22192ARC+
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  • HTML
MAX22192ARC+T
  • HTML
  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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MAX22192EVKIT

Evaluation System for the MAX22192

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MAX22192EVKIT

Evaluation System for the MAX22192

Evaluation System for the MAX22192

Features and Benefits

  • Easy Evaluation of the MAX22192
  • EV Kit Logic-Side is USB-Powered
  • Configured for IEC 61131-2 Type 1 and 3, and Type 2
  • Independent Slave or Daisy-Chain SPI Interface
  • Galvanic Isolation using MAX22192 and MAX12931
  • Robust Design ±1kV Surge Tolerant Line-to-Ground
  • Windows® 10, Windows 8.1, Windows 7, and Windows XP® Compatible Software
  • Fully Assembled and Tested
  • Proven PCB Layout
  • RoHS Compliant

Product Detail

The MAX22192 evaluation system (EV system) provides the hardware and software necessary to evaluate the MAX22192 octal industrial digital input device with diagnostic features and digital isolation. The MAX22192 evaluation kit (MAX22192EVKIT#) has Pmod™ compatible connector for SPI communication, but does not include the USB2PMB2# adapter board. The EV system (MAX22192EVSYS#) includes both the MAX22192EVKIT# and the USB2PMB2# adapter board that receives commands from a PC through the USB port to create an SPI interface for communication between the software and the MAX22192 on the EV kit.

The EV system includes a graphical user interface (GUI) that provides communication between the target device and the PC. The MAX22192 EV kit has a MAX22192 device (U1) and a MAX22190 device (U2), which is an octal industrial digital input device without digital isolation. The EV kit can be configured to operate in multiple modes.

  1. Single-Channel Mode: The USB2PMB2# adapter communicates with either U1 or U2 on the EV kit, depending on which channel is preferred and selected using the on-board jumpers.

  2. Independent Slave Mode: The USB2PMB2# adapter uses two chip-select signals (active-low CS1 and active-low CS2) to control each chip through a single connector/GUI interface.

  3. Daisy-Chain Mode: The USB2PMB2# adapter communicates with both U1 and U2 in SPI daisy-chain mode. The OSDI from U1 connects to SDI of U2, and the SDO of U2 connects to FSDI of U1. Both U1 and U2 are controlled from a single SPI interface.

Applications

  • Industrial Automation
  • Process Automation
  • Programmable Logic Controllers
reference details image

MAX22192EVSYS

Evaluation System for the MAX22192

zoom

MAX22192EVSYS

Evaluation System for the MAX22192

Evaluation System for the MAX22192

Features and Benefits

  • Easy Evaluation of the MAX22192
  • EV Kit Logic-Side is USB-Powered
  • Configured for IEC 61131-2 Type 1 and 3, and Type 2
  • Independent Slave or Daisy-Chain SPI Interface
  • Galvanic Isolation using MAX22192 and MAX12931
  • Robust Design ±1kV Surge Tolerant Line-to-Ground
  • Windows® 10, Windows 8.1, Windows 7, and Windows XP® Compatible Software
  • Fully Assembled and Tested
  • Proven PCB Layout
  • RoHS Compliant

Product Detail

The MAX22192 evaluation system (EV system) provides the hardware and software necessary to evaluate the MAX22192 octal industrial digital input device with diagnostic features and digital isolation. The MAX22192 evaluation kit (MAX22192EVKIT#) has Pmod™ compatible connector for SPI communication, but does not include the USB2PMB2# adapter board. The EV system (MAX22192EVSYS#) includes both the MAX22192EVKIT# and the USB2PMB2# adapter board that receives commands from a PC through the USB port to create an SPI interface for communication between the software and the MAX22192 on the EV kit.

The EV system includes a graphical user interface (GUI) that provides communication between the target device and the PC. The MAX22192 EV kit has a MAX22192 device (U1) and a MAX22190 device (U2), which is an octal industrial digital input device without digital isolation. The EV kit can be configured to operate in multiple modes.

  1. Single-Channel Mode: The USB2PMB2# adapter communicates with either U1 or U2 on the EV kit, depending on which channel is preferred and selected using the on-board jumpers.

  2. Independent Slave Mode: The USB2PMB2# adapter uses two chip-select signals (active-low CS1 and active-low CS2) to control each chip through a single connector/GUI interface.

  3. Daisy-Chain Mode: The USB2PMB2# adapter communicates with both U1 and U2 in SPI daisy-chain mode. The OSDI from U1 connects to SDI of U2, and the SDO of U2 connects to FSDI of U1. Both U1 and U2 are controlled from a single SPI interface.

Applications

  • Industrial Automation
  • Process Automation
  • Programmable Logic Controllers
Reference Designs

Reference Designs 2

fig03

Go-IO Industrial IoT Reference Design

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MAXREFDES212

Go-IO Industrial IoT Reference Design

Go-IO Industrial IoT Reference Design

Features and Benefits

  • Universal IO (UAIO), ±12.5V or ±25mA
  • 8 Digital Inputs, IEC 61131-2 compliant Types 1/3
  • 4 Digital Outputs, up to 1A with Safe Demag
  • IO-Link® Master, four ports, version 1.1 compliant
  • TMG IO-Link Master Stack
  • One RS-485 COM port, full duplex to 25Mbps data rate
  • Robust interfaces with integrated protection for ESD and surge

View Detailed Reference Design external link

Design & Integration Tools

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