TIDT347 November   2023

 

  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

3.3 Short-Circuit Protection

Figure 3-15 and Figure 3-10 show the short-circuit protection and recovery waveform, once the battery voltage falls below Vbat_short (2.5 V), the device is forced into PFM mode, and current is reduced to around 200 mA. Once the battery short is removed, it recovers to normal operation.

GUID-20230810-SS0I-W6CZ-R9SP-GMWFWVNXGQ7B-low.png Figure 3-9 Short-Circuit Protection and Recovery
GUID-20230810-SS0I-RPDZ-PGTB-GVPZKP29HVRS-low.png Figure 3-10 Zoom Waveform During SCP