General Description
The MAX14626 current loop protector features a current limit switch to prevent damage to the sensor devices due to faulty current loop conditions. The current-limit switch features a 25I (typ) on-resistance and operates from a +2.3V to +36V input voltage range. The accurate current limit is set to 30mA, making the part ideal for protecting the sensor reading devices.
The MAX14626 handles an overcurrent event in a continuous current-limit mode. Additional safety features include thermal shutdown to prevent overheating and reverse-input blocking to protect from being reverse connected into the sensor.
The device is available in a tiny 6-pin (3mm x 3mm), TDFN exposed pad package and is specified over the -40NC to +85NC extended temperature range.

Benefits and Features
♦ High Performance
   Low On-Resistance 25I (typ)
   Accurate Q10% Current Limit
   +2.3V to +40V Wide Supply Voltage Range
   Low Operating Current
   Ultra-Low Temperature Coefficient
♦ Robust Protection for Sensors
   Avoids Power Dissipation Issues Compared to
   Discrete Solutions
   Thermal Shutdown
   Reverse Input Protection
♦ Saves Space in Compact Systems
   Eliminates Need for Discrete PTC Poly Switch,
   Zener Diodes, and Resistors
   3mm x 3mm, 6-Pin TDFN Package
  
Applications
  Industrial Current Loop Control