SLUAAN5 February   2023 TPS61376

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2TPS61376 in Barcode Scanner Application
  5. 3TPS61376 Features
    1. 3.1 Inrush Current Control During Start-up
    2. 3.2 Input Average Current Limit During Load Transient
    3. 3.3 True Load Disconnect During Shutdown
  6. 4References

3.2 Input Average Current Limit During Load Transient

#GUID-785F6A36-A203-4CC0-81D2-6D23A58D669E shows a load transient of 2 A for 1 ms waveform with an average input current limit set to 500 mA.

During the load transient, the voltage across the output capacitor drops rapidly. The power source is required to provide a large current to charge the capacitor to the target output voltage. The average input current limit function makes sure that the current is within the range allowed by the power source. Until the output capacitor voltage reaches the target output voltage, the charging phase ends.

Figure 3-3 Load Transient with 500 mA Avarage Input Current Limit