TIDT380 February   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 Dimensions
  6. 2Testing and Results
    1. 2.1 Thermal Images
    2. 2.2 Bode Plots
  7. 3Waveforms
    1. 3.1 Cold Crank
    2. 3.2 Start-up
    3. 3.3 Steady State
    4. 3.4 Short-Circuit Protection
    5. 3.5 Load Transients

Thermal Images

LM5152-Q1 thermal images are shown in the following figures. The test conditions include room temperature with no airflow.

GUID-20231212-SS0I-28W9-QVNT-GKC4ZCNN8HD3-low.jpgFigure 2-1 Thermal Image at 13.5 VIN, 13.5 VOUT, 7.4A IOUT
GUID-20231212-SS0I-Q42W-2ZMZ-LFKT0ZKHL6S4-low.jpgFigure 2-3 Thermal Image at 4.2 VIN, 8.5 VOUT, 11.76A IOUT
GUID-20231212-SS0I-RHZD-CTPJ-GXM7QV2FN24B-low.jpgFigure 2-2 Thermal Image at 18 VIN, 18 VOUT, 5.55A IOUT

LM74900-Q1 thermal images are shown in the following figures. The test conditions include room temperature, no airflow.

GUID-20231212-SS0I-256S-BTS9-7GVKWBFPPW3R-low.jpgFigure 2-4 Thermal Image at 4.2 VIN, 4.2 VOUT, 24A IOUT
GUID-20231212-SS0I-4LXN-PLW2-FXJW4X3MRKND-low.jpgFigure 2-6 Thermal Image at 18 VIN, 18 VOUT, 5.55A IOUT
GUID-20231212-SS0I-NHBQ-G1TW-16Q1X3JS8PCZ-low.jpgFigure 2-5 Thermal Image at 13.5 VIN, 13.5 VOUT, 7.48A IOUT

LMQ644A2-Q1 thermal images are shown in the following figures. The test conditions include room temperature, output1 3.3V, 4A, output2 6V, 6A with no airflow.

GUID-20231212-SS0I-P0PX-M3P2-ZGSJ3JD286ZH-low.jpgFigure 2-7 Thermal Image at 8.5 VIN
GUID-20240114-SS0I-G6F5-STPT-ZHQRNDCZJJFS-low.jpgFigure 2-9 Thermal Image at 18 VIN
GUID-20240114-SS0I-TQWH-JBMS-2VKCFMZKMCF1-low.jpgFigure 2-8 Thermal Image at 13.5 VIN

Thermal images of TPS7B81-Q1 are shown in the following figure. The test conditions include room temperature, no airflow.

GUID-20231212-SS0I-DZMM-S7GW-TJQVPQXK8GKX-low.jpgFigure 2-10 Thermal Image at 4.2 VIN, 3.3 VOUT, 0.15A IOUT
GUID-20231212-SS0I-DTMD-SNSD-PTRTRMGDF4FT-low.jpgFigure 2-12 Thermal Image at 18 VIN, 3.3 VOUT, 0.15A IOUT
GUID-20231212-SS0I-PLWP-8DBZ-BKMTRJWW1VCP-low.jpgFigure 2-11 Thermal Image at 13.5 VIN, 3.3 VOUT, 0.15A IOUT

Thermal images of TPS628503-Q1 are shown in the following figure. The test conditions include room temperature, no airflow.

GUID-20231212-SS0I-5DLD-L78H-HQMKVDLL7X4X-low.jpg Figure 2-13 Thermal Image at 3.3 VIN, 1.15 VOUT, 3A IOUT