TIDT400 July   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Suggested Equipment
    3. 1.3 General Texas Instruments High Voltage Evaluation (TI HV EMV) User Safety Guidelines
  6. 2Testing and Results
    1. 2.1 Load Regulation
    2. 2.2 Efficiency Graphs
    3. 2.3 Power Factor (PF) and Input Current Total Harmonic Distortion (iTHD)
    4. 2.4 Efficiency, PF, and THD Data
    5. 2.5 Thermal Images
    6. 2.6 Bode Plots
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Output Current Ripple
    4. 3.4 Load Transients
    5. 3.5 Start-Up Sequence

Description

This reference design is a universal input, 71.4V, 7A constant current (CC), constant voltage (CV) charger for e-bike applications. The reference design achieves 92.93% end-to-end peak efficiency with a 115Vac input, and 94.50% end-to-end peak efficiency with a 230Vac input. This design includes fan control and charging status indication based on output current. This reference design uses the UCC28180, UCC256603, UCC28910, and TL103W devices.