TIDT377 December   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 Dimensions
   4. 1.4 Test Setup
6. 2Testing and Results
   1. 2.1 Efficiency Graph
   2. 2.2 Thermal Images
   3. 2.3 Bode Plots
      1. 2.3.1 Bode Plot With Battery
         1. 2.3.1.1 Bode Plot With Battery During Recharging Phase (Constant Current)
         2. 2.3.1.2 Bode Plot With Battery at Constant Battery Voltage
      2. 2.3.2 Bode Plot With Electronic Load
7. 3Waveforms
   1. 3.1 Switching
      1. 3.1.1 Transistor Q2 Drain to Source
         1. 3.1.1.1 9-V Input Voltage
         2. 3.1.1.2 36-V Input Voltage
      2. 3.1.2 Transistor Q1 Source to Drain
         1. 3.1.2.1 9-V Input Voltage
         2. 3.1.2.2 36-V Input Voltage
   2. 3.2 Output Voltage Ripple
   3. 3.3 Load Transients
   4. 3.4 Start-Up Sequence
   5. 3.5 Shutdown Sequence

SEPIC Reference Design Fitting for Battery Chargers