SLVAF72 September   2021 TPS2661

 

  1.   Trademarks
  2. 1Overview of a HART Enabled Analog Input Module
  3. 2Protection Provided by TPS2661 to Analog Input Module
    1. 2.1 Overload Protection
    2. 2.2 Output Hot Short and Input Hot Plug
    3. 2.3 Miswiring on Input
    4. 2.4 Input Under Voltage Protection
  4. 3Protection Provided by TPS2661 to Analog Output Module (AOM)
    1. 3.1 Miswiring on Output
    2. 3.2 Output under voltage protection
  5. 4HART Tests Done on TPS2661x
  6. 5Challenges Using Discrete Solution Instead of TPS2661x

3.1 Miswiring on Output

The TPS2661x devices provide protection from over-voltage events on OUT pin by turning off the internal Pass FETs and cutting off the signal path whenever VOUT goes above Overvoltage Protection Threshold, Rising. The signal path through TPS2661x is restored again when VOUT goes below Overvoltage Protection Threshold, Rising – Overvoltage hysteresis