MAX14838

24V Pin-Configurable Industrial Sensor Output Drivers

Simplify and Shrink Sensor Designs by 25x


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Description

The MAX14838/MAX14839 24V/100mA drivers are optimized for use in industrial sensors. These devices integrate all of the high-voltage (24V) circuitry commonly found in industrial sensors, including a configurable PNP/ NPN/push-pull driver and an integrated linear regulator that meets common sensor power requirements.

The MAX14838/MAX14839 are pin-configurable. Logic inputs allow the driver to be configured for high-side (PNP), low-side (NPN), or push-pull operation. An additional input allows the user to select between normally-open and normally-closed logic.

The MAX14838 features an onboard 5V linear regulator, while the MAX14839 features a 3.3V linear regulator.

Each device includes two LED drivers for visual feedback. One LED driver reflects the output logic status and the other is a general-purpose driver that can be used to signal a fault condition.

The DO output, supply (VCC), and ground (GND) pins are reverse polarity-protected and are protected against IEC ESD and surge events.

The MAX14838 and MAX14839 operate from a wide supply range and are available in a 12-pin TDFN-EP package (3mm x 3mm) or a 12-bump wafer-level package (WLP) (2.1mm x 1.6mm) and operate over the -40°C to +105°C temperature range.
MAX14838, MAX14839: Typical Application Circuit MAX14838, MAX14839: Typical Application Circuit Enlarge+

Key Features

  • High Configurability Simplifies Design
    • Pin-Selectable High-Side (PNP), Low-Side (NPN), or Push-Pull Driver
    • Pin-Configurable NO/NC Logic
  • Integrated Protection Provides Robust Sensor Solutions
    • Reverse-Polarity Protection on DO, VCC, and GND
    • 4.75V to 34V Supply Range (MAX14839)
    • Driver is Short-Circuit Protected
    • Active-Low FAULT Output for Fault Indication
    • VCC Hot Plug Protection
    • Thermal Shutdown Protection
    • ±1kV/500Ω Surge Protection
    • ±8kV IEC 61000-4-2 Air Gap ESD Protection
    • ±6kV IEC 61000-4-2 Contact ESD Protection
    • -40°C to +105°C Temperature Range
  • Fast Turn-Off of Inductive Loads Up to 1.5H
  • Saves Space on Board
    • Available in 12-Pin TDFN-EP (3mm x 3mm) or 12-Bump WLP (2.1mm x 1.6mm)
    • Dual Integrated 2mA LED Drivers

Applications/Uses

  • Capacitive and Inductive Sensors
  • Industry Binary Sensors
  • Proximity Switches

MAX14838EVKIT: Evaluation Kit for the MAX14838

Tools & Models

  • MAX14838 IBIS Model
  • Product Reliability Reports: MAX14838.pdf 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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