SLVAES9A June   2020  – July 2020 TPS1H000-Q1 , TPS1H100-Q1 , TPS1H200A-Q1 , TPS27S100 , TPS2H000-Q1 , TPS2H160-Q1 , TPS4H000-Q1 , TPS4H160-Q1


  1. 1Loss of Ground Conditions
    1. 1.1 Loss of Device Ground
    2. 1.2 Loss of Module Ground
    3. 1.3 Output Protection on TPSxHxx Devices
  2. 2Loss of Battery Conditions
    1. 2.1 Loss of Battery
    2. 2.2 Inductive Loading and Loss of Battery
      1.      Trademarks
  3. 3Revision History

Loss of Module Ground

The second classification of a loss of ground fault when designing with a TI high-side switch is the loss of ground of the entire module. As high-side switches generally power off board loads, this can be a loss of ground of the entire module or board such as an electronic control unit (ECU). Figure 1-2 illustrates this condition.

GUID-20200602-SS0I-R1ZS-3RSV-CQV4ZMRH1CQW-low.gifFigure 1-2 Loss of Module Ground
For both loss of local device ground and loss of global module ground, TI high-side switches will have built-in protection mechanisms to disable output and prevent damage. In this automatic shutoff condition, the device turns off the output to protect the downstream load. Once the ground reference is reestablished, the device returns to normal operation and the output follows the relevant signal on the IN pin.