Circuit Protection Misc High Voltage Reverse Input Capable Current Loop Protector

The MAX14626 current loop protector features a current-limit switch to prevent damage to the analog input module from sensor failure. The current-limit switch features a 25O (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 -40°C to +85°C extended temperature range.

• High Performance
  • Low On-Resistance 25O (typ)
  • Accurate ±10% 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