SLUUCJ2C july   2021  – august 2023 UCC14240-Q1 , UCC14241-Q1 , UCC15240-Q1 , UCC15241-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 U1 Component Selection
    2. 1.2 Pin Configuration and Functions
  5. 2Description
    1. 2.1 EVM Electrical Performance Specifications
  6. 3Schematic
  7. 4EVM Setup and Operation
    1. 4.1 Recommended Test Equipment
    2. 4.2 External Connections for Easy Evaluation
    3. 4.3 Powering the EVM
      1. 4.3.1 Power on for Start-up
      2. 4.3.2 Power off for Shutdown
    4. 4.4 EVM Test Points
    5. 4.5 Probing the EVM
  8. 5 Performance Data
    1. 5.1  Efficiency Data
    2. 5.2  Regulation Data
    3. 5.3  Steady State Input Current
    4. 5.4  Start-up Waveforms
    5. 5.5  Inrush Current
    6. 5.6  AC Ripple Voltage
    7. 5.7  EN-to-/PG Timing
    8. 5.8  RLIM
    9. 5.9  Fault Protection
      1. 5.9.1 Output UVLO
      2. 5.9.2 Output OVP
    10. 5.10 Shutdown
    11. 5.11 Thermal Performance
  9. 6Assembly and Printed Circuit Board (PCB) Layers
  10. 7Bill of Materials (BOM)
  11. 8Revision History

5.6 AC Ripple Voltage

GUID-20221122-SS0I-GTMT-4MG4-VNGR6KH2XK5V-low.png
top: VDD-VEE, 100 mV/div, bot: COM-VEE, 50 mV/div, time = 100 ms/div
Figure 5-11 VDDAC=300 mV, VEEAC=108 mV, IVDD=80 mA, IVEE=10 mA
GUID-20221122-SS0I-CPHL-TT2B-4H1C9BHT9GZQ-low.png
top: VDD-VEE, 100 mV/div, bot: COM-VEE, 50 mV/div, time = 200 µs/div
Figure 5-12 AC Ripple: VIN=24 V, IVDD=80 mA, IVEE=10 mA, FSSM = 5 kHz
GUID-20221122-SS0I-6SJZ-VX7J-9TQJQZBXGPPG-low.png
top: VDD-VEE, 100 mV/div, bot: COM-VEE, 50 mV/div, time = 5 µs/div
Figure 5-13 AC Ripple: VIN=24 V, IVDD=80 mA, IVEE=10 mA, FMOD=45 kHz
GUID-20221122-SS0I-S0MV-VKNS-T8F2RBRZKC6L-low.png
(VDD-VEE, 50 mV/div, time = 5 µs/div,
Zoom: VDD-VEE, 5 mV/div, time_zoom=50 ns/div
Figure 5-14 AC Ripple: VIN=24 V, IVDD=80 mA, FSW(PRI)=12.95 kHz,
GUID-20221122-SS0I-3JXV-3GMP-FTK6KCMMTZ87-low.png
(VDD-VEE, 50 mV/div, time = 5 µs/div,
Zoom: VDD-VEE, 5 mV/div, time_zoom=122 ns/div
Figure 5-15 AC Ripple: VIN=24 V, IVDD=80 mA, FBURST=1 MHz,