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MAX14914A

INTERACTIVE Data Sheet Buy Now Download

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

INTERACTIVE Data Sheet

Product Details

General Description

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.

Block Diagram of MAX14914 and MAX14914A

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Benefits and Features

Reduces Power and Heat Dissipation
- 240mΩ (max) HS R_ON at T_A = 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^TM 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

Applications

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

SafeDemag is a trademark of Maxim Integrated Products, Inc.

19-8712; Rev 4; 9/20

See parametric specs for Digital I/O

Key Features

See parametric specs for Digital I/O

Parametric specs for Digital I/O

Digital Input/Output	Digital I/O
Interface Type	CMOS
# Channels	1
V_SUPPLY (V) (min)	10
V_SUPPLY (V) (max)	40
I_SUPPLY (µA) (typ)	0.6
Digital Input Type	Type 1 Type 2 Type 3
Current Limit (A) (min)	0.135
Current Limit (A) (max)	2.6
Min. Detectable Field Input Pulse Width (µs)	0.8
Load Current (A) (max)	1.3
Oper. Temp. (°C)	-40 to +125
Package/Pins	TQFN/16
Budgetary Price (See Notes)	2.06

Compare products in Family

See parametric specs for Digital I/O

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Simplified Block Diagram

Technical Docs

Data Sheet	High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration	Sep 21, 2020
App Note	Configurable Input/Output Modes for PLC Systems Using the MAX22000 and MAX14914A
User Guide	MAXREFDES185# Universal IO Quick Start Guide

Design & Development

Click any title below to view the detail page where available.

Hardware Development

Evaluation Board

MAX14914EVKIT

$44.52

Description/Applications

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.

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Features

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

Evaluation Board

MAX14914PMB

$33.39

Description/Applications

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.

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Features

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

SYSTEM BOARD

MAXREFDES185# Configurable IO with Safety Monitoring

Additional Resources

Design Solution: Finally – Digital IO Means Digital IO! ›
How to Safely Demagnetize Your Inductive Load Using SafeDemag™

Evaluation Board

MAX14914EVKIT

Data Sheet

$44.52

Description/Applications

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.

View Details

Features

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

Evaluation Board

MAX14914PMB

Data Sheet

$33.39

Description/Applications

View Details

Features

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

SYSTEM BOARD

MAXREFDES185# Configurable IO with Safety Monitoring

Design Solution: Finally – Digital IO Means Digital IO! ›
How to Safely Demagnetize Your Inductive Load Using SafeDemag™

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

General Description

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

Block Diagram of MAX14914 and MAX14914A

Enlarge+ Enlarge+

Benefits and Features

Reduces Power and Heat Dissipation
- 240mΩ (max) HS R_ON at T_A = 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^TM 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

Applications

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

SafeDemag is a trademark of Maxim Integrated Products, Inc.

19-8712; Rev 4; 9/20

Parameters

Parametric specs for Digital I/O

Digital Input/Output	Digital I/O
Interface Type	CMOS
# Channels	1
V_SUPPLY (V) (min)	10
V_SUPPLY (V) (max)	40
I_SUPPLY (µA) (typ)	0.6
Digital Input Type	Type 1 Type 2 Type 3
Current Limit (A) (min)	0.135
Current Limit (A) (max)	2.6
Min. Detectable Field Input Pulse Width (µs)	0.8
Load Current (A) (max)	1.3
Oper. Temp. (°C)	-40 to +125
Package/Pins	TQFN/16
Budgetary Price (See Notes)	2.06

Compare products in Family

See parametric specs for Digital I/O

Key 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

Applications/Uses

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

Description

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

Simplified Block Diagram

Technical Docs

Data Sheet	High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration	Sep 21, 2020
App Note	Configurable Input/Output Modes for PLC Systems Using the MAX22000 and MAX14914A
User Guide	MAXREFDES185# Universal IO Quick Start Guide

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

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INTERACTIVE Data Sheet

MAX14914A

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

Product Details

Key Applications

Key Features

Applications/Uses

Simplified Block Diagram

Technical Docs

Design & Development

Support & Training

Parameters

Key Features

Applications/Uses

Description

Simplified Block Diagram

Technical Docs

Support & Training

MAX14914A Related Videos