MAX14824

Description

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The MAX14824 is an IO-Link® master interface that integrates an IO-Link physical layer transceiver with an auxiliary digital input and two linear regulators. High port count IO-Link master applications are supported through in-band SPI addressing, and the 12MHz SPI interface minimizes host controller access times. In-band addressing and selectable SPI addresses enable cascading up to 16 devices.

The device supports all the IO-Link data rates and features slew-rate-controlled drivers to reduce EMI. The driver is guaranteed to drive up to 300mA (min) load currents. Internal wake-up circuitry automatically determines the correct wake-up polarity, allowing for the use of simple UARTs for wake-up pulse generation.

The MAX14824 is available in a 4mm x 4mm, 24-pin TQFN package with exposed pad, and operates over the extended -40°C to +105°C temperature range.

Key Features

• IO-Link v.1.0 and v.1.1 Physical Layer Compliant
• Supports COM1, COM2, and COM3 Data Rates
• Push-Pull, High-Side, or Low-Side Outputs
• 300mA C/Q Output Drive
• 1µF C/Q Load Drive Capability
• Generates 500mA Wake-Up Pulse
• Automatic Wake-Up Pulse Polarity
• Auxiliary Digital Input
• 5V and 3.3V Linear Regulators
• SPI Interface for Configuration and Monitoring
• SPI-Based Chip Addressing
• EMI Emission Control Through Slew-Controlled Driver
• Reverse-Polarity Protection on DI
• Short-Circuit Protection on C/Q
• High Temperature Warning and Thermal Shutdown
• Extensive Fault Monitoring and Reporting
• -40°C to +105°C Operating Temperature Range
• 4mm x 4mm TQFN Package

Applications/Uses

• 24V Digital Inputs and Outputs
• High Port Count IO-Link Masters
• IO-Link Master Controllers
• PLC Fieldbus Gateways