High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration

Ultra Robust, Configurable Driver facilitates High Speed and Safety Digital I/O module Designs

Please check latest availability status for a specific part variant.


The MAX14914 is a high-side/push-pull driver that operates as both an industrial digital output (DO) and an industrial digital input (DI). The MAX14914 is specified for operation with supplies up to 40V. 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 active-low DOI_LVL pin for safety applications.

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

Design Solution: Finally – Digital IO Means Digital IO! ›

MAX14914: Functional Diagram MAX14914: Functional Diagram Enlarge+

Key Features

  • Reduces Power and Heat Dissipation
    • 240mΩ (max) HS RON at TA = 125°C
    • Accurate Short-Circuit Current Limit
    • Accurate Internal Current Limiter for Types 1, Type 2, and Type 3 Digital Inputs
  • Enhances System Robustness
    • “Safe-Demagnetization” for Safe Turn-Off of Unlimited Inductance
    • 60V Supply Tolerance
    • Loss of GND Protection
    • Thermal Shutdown Protection
    • ±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 4x4 TQFN Package
    • Internal Clamps 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
    • Resistor Settable Current Limiting for the High-Side Switch (135mA - 1.3A)
    • 10V to 40V Operating Supply Range
  • Improves System Speed and Throughput
    • Propagation Delay of Less Than 2µSec


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

See parametric specs for Digital I/O (14)

Part NumberDigital Input/OutputµC Interface TypeChannelsVSUPPLY
Digital Input TypeCurrent Limit
Current Limit
Min. Detectable Field Input Pulse Width
Output Current
Driver TypeLTH Delay
HTL Delay
FeaturesOper. Temp.
MAX14914 Digital I/OCMOS110400.6
Type 1
Type 2
Type 3
Low Power
Small Size
-40 to +125

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX14914EVKIT: Evaluation Kit for the MAX14914
MAX14914PMB: MAX14914 Peripheral Module

Tools & Models

  • MAX14914 IBIS Model
  • Request Reliability Report for: MAX14914 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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    Related Resources

    Industrial Octal High-Side Switch

    • Robust Solutions
    • Reduces Power and Heat Dissipation
    • Flexible

    Type ID Title
    Evaluation Board9301MAX14914PMB MAX14914 Peripheral Module
    Evaluation Board9295MAX14914EVKIT Evaluation Kit for the MAX14914