TIDT347A November   2023  – October 2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency Data
    2. 2.2 Efficiency Graphs
    3. 2.3 Thermal Images
  7. 3Waveforms
    1. 3.1 Charging Waveform
    2. 3.2 Switching Waveform
    3. 3.3 Short-Circuit Protection
  8.   Trademarks

3.3 Short-Circuit Protection

Figure 3-9 and Figure 3-10 show the short-circuit protection and recovery waveform, once the battery voltage falls below Vbat_short (2.5V), the device is forced into PFM mode, and current is reduced to around 200mA. Once the battery short is removed, it recovers to normal operation.

PMP41083 Short-Circuit Protection and Recovery Figure 3-9 Short-Circuit Protection and Recovery
PMP41083 Zoom Waveform During SCP Figure 3-10 Zoom Waveform During SCP