Overview

Features and Benefits

  • Reduces Power and Heat Dissipation
    • 240mΩ (max) HS RON at TA = 125°C
    • 0.9mA (typ) High-Side DO-Mode Supply Current
    • Accurate Internal Current Limiter for Type 1, Type 2, and Type 3 Digital Inputs
  • Enhances System Robustness
    • SafeDemag for Safe Turn-Off of Unlimited Inductance
    • 60V Supply Tolerance
    • Accurate Short-Circuit DO Mode Current Limiting
    • ±2kV IEC 61000-4-5 Surge Protection
    • ±20kV IEC 61000-4-2 Air-Gap ESD Protection
    • ±7kV IEC 61000-4-2 Contact ESD Protection
    • -40°C to +125°C Ambient Operating Temperature
  • Reduces BOM Count and PCB Space
    • Small 4mm x 4mm TQFN Package
    • Internal Clamp for Fast Inductive Load Turn-Off
    • On-Chip 5V Regulator
  • Provides Flexibility
    • Configurable as a Digital Input, or a High-Side or Push-Pull Digital Output
    • Low-Leakage Mode (MAX14914A) Allows High Accuracy AIO/DIO applications
    • Resistor Settable Current Limiting for the High-Side Switch (135mA to 1.3A)
    • Pin-Selectable Type 1/3 or Type 2 DI Operation
  • Improves System Speed and Throughput
    • Propagation Delay of Less Than 2µs

Product Details

The MAX14914, MAX14914A and MAX14914B are the family of high-side/push-pull drivers that operate as both an industrial digital output (DO) and an industrial digital input (DI). The MAX14914 family features full IEC 61131-2 compliance in both their DO and DI modes of operation. The high-side switch current is resistor settable from 135mA (min) to 1.3A (min). The high-side driver’s on-resistance is 120mΩ (typ) at 125°C ambient temperature. Optional push-pull operation allows driving of cables and fast discharge of load capacitance. The output voltage is monitored and indicated through the DOI_LVL pin for safety applications.

The MAX14914 family complies with Type 1, Type 2, or Type 3 input characteristics when configured for DI operation.

The MAX14914A is a low-DOI-leakage version of MAX14914, designed to work together with the MAX22000 Industrial Configurable Analog IO device. The MAX14914B features a high-side switch overcurrent indication.

Applications

  • Configurable Digital Input/Output
  • Industrial Digital Outputs and Inputs Modules
  • Motor Control
  • Safety Systems

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.