One-Time Programmable Industrial Sensor Output Driver 10-Pin TDFN EP

The MAX14832 is a 24V, 100mA driver for industrial binary sensors. The device is configurable through one-time programming (OTP) and integrates the common high-voltage circuitry needed for industrial binary sensors into a single-device solution. Integrated transient protection meets IEC60255-5 surges up to ±1.3kV. The output of the device can be configured for high-side (pnp), low-side (npn), or push-pull operation through OTP. Additionally, the device features an OTP option for the internal low-dropout (LDO) regulator, allowing the user to select a 3.3V or 5V output, as well as an option to configure the device for sensors with normally open (NO) or normally closed (NC) logic. Also configurable during OTP is the timing of the power-on reset (POR) delay. OTP programming options are performed with the sensor interface pins (VCC, DO, and GND) using the 1-Wire interface protocol. The MAX14832 operates from a wide 4.75V to 34V supply and is available in a 10-pin TDFN-EP (3mm x 3mm) package. The device functions over the extended -40°C to +85°C temperature range.

• High Configurability
  • OTP Configurable Through Sensor Interface Pins
  • Programmable High-Side (pnp), Low-Side (npn), or Push-Pull Driver
  • LDO with Selectable 3.3V or 5V Output Voltage
  • Optional Pulse Stretching
  • Programmable POR Delay
  • Programmable NO/NC Logic

Robust Design

• Reverse-Polarity Protection
• Hot-Plug Protection
• Short-Circuit Protection on DO
• Surge Protection ±1.3kV/500O IEC 60255-5
• ESD Protection
  • ±12kV IEC61000-4-2 Air-Gap Discharge Method
  • ±8kV IEC61000-4-2 Contact Discharge Method

Glitch Filtering on Logic Input

Accelerated Demagnetization of Inductive Load

Overtemperature Protection

Saves Space on Board

• 10-Pin TDFN-EP Package
• Dual, Integrated 4.5mA LED Drivers