SLLU344 February   2022 TIOL112 , TIOL1123 , TIOL1125 , TIOS102 , TIOS1023 , TIOS1025

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Description
  3. 2EVM Setup and Features Explained
    1. 2.1 Evaluation Equipment
    2. 2.2 Power Overview
    3. 2.3 Current Limit Overview
    4. 2.4 Fault Reporting (NFAULT)
    5. 2.5 Transient Protection and Custom Loads
    6. 2.6 IO-Link Communication (TIOL112x)
    7. 2.7 Digital Sensor Output Driver Control (TIOS102x and TIOS112x)
    8. 2.8 EVM Jumper Settings
  4. 3Schematic and Bill of Materials
    1. 3.1 Schematic
    2. 3.2 Bill of Materials
  5. 4Revision History

2.4 Fault Reporting (NFAULT)

The TIOL112x and TIOS102x can both monitor for three types of fault conditions and have a single fault reporting pin (NFAULT) that is used to indicate that one or more of these faults are currently present in the device. The NFAULT pin is driven low if either a current fault condition is detected, the die temperature has exceeded the thermal warning threshold T(WRN), or supply has dropped below the under voltage lock out (UVLO) threshold. NFAULT returns to a high-impedance state as soon as all three fault conditions clear.

The NFAULT signal for the TIOL112x (NFAULT) can be monitored through pin 19 of header J11, test point TP13, and LED D1. Likewise, the NFAULT signal for the TIOS1012x (DO_NFAULT) can be monitored through pin 18 of header J11, test point TP14, and LED D2.