IO-Link Device Transceiver

The MAX14826 transceiver is suitable for IO-Link® devices and 24V binary sensors. All specified IO-Link data rates are supported. In IO-Link applications, 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-configurable 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/THSD output.

The MAX14826 includes a selectable parallel or SPI interface for configuration and monitoring of the drivers. Extensive alarm conditions are detected and communicated through the interrupt outputs and the SPI interface. The device features reverse-polarity, short-circuit, and thermal protection. All power lines are monitored for undervoltage conditions.

The C/Q and DO drivers are specified for sinking/sourcing 200mA.

The MAX14826 is available in a 4mm x 4mm, 24-pin TQFN package, and is specified over the extended -40°C to +105°C temperature range.

Applications

* Industrial Sensors and Actuators * IO-Link Actuators * IO-Link Sensors

* IO-Link Specification v.1.0 and v.1.1 Physical Layer Compliant

* High Configurability and Integration Reduce SKU's

* Push-Pull, High-Side, or Low-Side Outputs

* Supports COM1, COM2, and COM3 Data Rates

* SPI or Pin-Driven Control and Monitoring

* 2.5V to 5V Logic Interface Levels

* C/Q and DO Drivers Can Be Connected in Parallel

* Auxiliary 24V, 200mA Digital Output (DO)

* Auxiliary 24V Digital Input (DI)

* Integrated 5V and 3.3V Linear Regulators

* Driver Currents Specified for 200mA, 100mA and 50mA

* 1µF C/Q and DO Load Drive Capability

* Integrated Protection Enables Robust Solutions

* Extensive Fault-Monitoring and Reporting

* Reverse-Polarity and Short-Circuit Protection on All 24V Inputs/Outputs

* Reverse-Polarity Protected 24V Supply Output

* -40°C to +105°C Operating Temperature Range

* Backwards Pin-and Software-Compatible to MAX14821

* Space-Saving 4mm x 4mm TQFN Package