概述

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.

关键特性

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

MAX14824: Typical Operating Circuit

应用

24V数字输入、输出

多端口IO-Link主机

IO-Link主控制器

PLC现场总线网关

关键参数