MAX14914, MAX14914A

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

产品详情

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

请参见参数规范 Digital I/O

主要特征

请参见参数规范 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)	1.98

比较产品库中的器件

请参见参数规范 Digital I/O

缩小

简化框图

Technical Docs

数据资料	High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration	Sep 21, 2020
应用笔记	数字输出驱动器：理解关键特性与挑战
产品手册	Building Automation Brochure

设计与质量

单击下面的标题以查看详情页面

硬件开发

评估板

MAX14914EVKIT

$44.52

描述

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.

查看详情

特征

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

评估板

MAX14914PMB

$33.39

描述

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.

查看详情

特征

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

其他资源

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

评估板

MAX14914EVKIT

数据资料

$44.52

描述

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.

查看详情

特征

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

评估板

MAX14914PMB

数据资料

$33.39

描述

查看详情

特征

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

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

仿真模型

MAX14914 IBIS Model

下载

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题，请访问Maxim的支持中心。

参量

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)	1.98

Compare products in Family

See parametric specs for Digital I/O

主要特征

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

应用/用途

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

描述

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! ›

简化框图

MAX14914: Functional Diagram

Technical Docs

数据资料	High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration	Sep 21, 2020
应用笔记	数字输出驱动器：理解关键特性与挑战
产品手册	Building Automation Brochure

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题，请访问Maxim的支持中心。

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INTERACTIVE Data Sheet

MAX14914, MAX14914A

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

产品详情

主要特征

应用/用途

简化框图

Technical Docs

设计与质量

MAX14914 IBIS Model

MAX14914 IBIS Model

支持和培训

参量

主要特征

应用/用途

描述

简化框图

Technical Docs

支持和培训

MAX14914 相关视频