24V Pin-Configurable Industrial Sensor Output Drivers

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.

Applications

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

* 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