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
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Key Features
Applications/Uses
| Digital Input/Output | Digital I/O |
| Interface Type | CMOS |
| # Channels | 1 |
| VSUPPLY (V) (min) | 10 |
| VSUPPLY (V) (max) | 40 |
| ISUPPLY (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) | 1.94 |
Simplified Block Diagram
Technical Docs
Design Solution: Finally – Digital IO Means Digital IO! ›
How to Safely Demagnetize Your Inductive Load Using SafeDemag™
Support & Training
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Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
| Digital Input/Output | Digital I/O |
| Interface Type | CMOS |
| # Channels | 1 |
| VSUPPLY (V) (min) | 10 |
| VSUPPLY (V) (max) | 40 |
| ISUPPLY (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) | 1.94 |
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, 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.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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