MAX14914

PRODUCTION

MAX14914

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

PRODUCTION

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Features

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

Additional 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

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $2.33

Technical Documents 4

MAX14914: High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration Data Sheet (Rev.4) 09/21/2020

Open Interactive Page

MAX14914 Reliability Data 01/12/2023

Design Solutions 46 - Finally – Digital IO Means Digital IO! 09/01/2021

Digital Output Drivers: Understanding Key Features and Challenges 03/13/2017

Design Resources 2

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX14914ATE+	16-LFCSP-4X4X0.75	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX14914ATE+T	16-LFCSP-4X4X0.75	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX14914ATE+
Pin/Package Drawing
16-LFCSP-4X4X0.75
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX14914ATE+T
Pin/Package Drawing
16-LFCSP-4X4X0.75
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

Software 1

MAX14914/MAX14914A/MAX14914B No-OS Device Driver

View Evaluation Software

MAX14914PMB

MAX14914 Peripheral Module

MAX14914PMB

MAX14914 Peripheral Module

Features and Benefits

Easy Evaluation of the MAX14914
Configurable as a Digital Input or a High-Side or Push-Pull Digital Output
Accurate Internal Current Limiter for Types 1, 2, and 3 Digital Inputs
Support High-Side Current Up to 1.3A with External 24V Supply
Adjustable Short-Circuit Current Limit
Safe-Demagnetization for Safe Turn Off of Unlimited Inductance
Works with USB2PMB1 Adapter and Munich GUI Software
Fully Assembled and Tested
Proven PCB Layout
RoHS Compliant

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Product Detail

The MAX14914 peripheral module provides the hardware to evaluate the MAX14914 high-side/push-pull driver that operates as both an industrial digital output (DO) and an industrial digital input (DI). Refer to the MAX14914 IC data sheet for detailed information regarding operation of the IC.

The module can be used in various ways; Maxim sells a low-cost USB2PMB1 adapter board that uses the Munich GUI software for communication through a USB cable. This is not included with this board. Alternatively, any microcontroller or FPGA with a 12-pin Pmod™-compatible connector can be used, but the user needs to adapt the signalling because this is not a standard SPI port. Another option for the user is to wire-wrap a temporary connection from their system to the pins on connector X1.

Applications

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

MAX14914EVKIT

Evaluation Kit for the MAX14914/MAX14914A/MAX14914B

MAX14914EVKIT

Evaluation Kit for the MAX14914/MAX14914A/MAX14914B

Features and Benefits

Robust Operation with Wide Range of Input Voltages and Load Conditions
-40°C to +125°C Temperature Range
On-Board LED Indication of Status and Fault Conditions
Reverse Supply Voltage Protection
Proven PCB Layout
Fully Assembled and Tested

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Product Detail

The MAX14914 evaluation kit (EV kit) provides a proven design to evaluate the MAX14914/MAX14914A/ MAX14914B, a configurable industrial digital output driver/digital input. The EV kit allows controlling of the MAX14914 as either a digital output (in either High-Side or Push-Pull mode) or digital input with simple jumper settings.

The EV kit must be powered from an external +24V power supply and can consume up to 1.3A (minimum) when fully loaded.

The MAX14914EVKIT comes with a MAX14914ATE+ installed in a 16-pin, 4x4mm TQFN-EP package.

MAX14914B overcurrent interrupt output is not directly supported. For the MAX14914B application refer to the MAX14914 IC data sheet.

Applications