Maxim Integrated — MAX14914 High-Side/Push-Pull Drivers

Maxim Integrated MAX14914 High-Side/Push-Pull Drivers

Featuring settable current-limiting, push-pull driver option and digital output configuration

The Maxim Integrated MAX14914 is a family of high-side/push-pull drivers that operate as both an industrial digital output (DO) and an industrial digital input (DI).

Designed to work together with the MAX22000 Industrial Configurable Analog I/O device, 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 MAX14914’s high-side driver 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 of the Maxim Integrated MAX14914 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. It is a low-DOI-leakage device.

MAX14914 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 PackageInternal Clamp for Fast Inductive Load Turn-OffOn-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

MAX14914 Applications

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