TIDT354
November 2023
1
Description
Features
Applications
1
Test Prerequisites
1.1
Voltage and Current Requirements
1.2
Required Equipment
1.3
Considerations
1.4
Dimensions
1.5
Test Setup
2
Testing and Results
2.1
Efficiency Graphs
2.2
Efficiency Data
2.3
Thermal Images
2.4
Bode Plots
3
Waveforms
3.1
Switching
3.2
Load Transients
3.3
Start-Up and Shutdown Sequences
1.2
Required Equipment
V
IN
power supply 24 V to 60 V, at least 250 W at the input voltage under test, or 11 A for the full load off a 24-V input
Electronic load to step for efficiency graphs, and for dynamic load testing such as Kikusui PLZ334WL
Low inductance dynamic load for the 3.3-V output if the load slew rates > 3 A / μs needed
Oscilloscope such as Tektronix MDO34 with TPP0500B 10 × voltage probes and 30-A TCP0030A current probe
Digital multimeters such as Fluke 87iii or 87V
For Bode plots: Vector Network Analyzer such as Bode 100 from OMICRON Lab
Thermal camera such as FLIR E75
Keysight 34970 data acquisition, switch unit along with calibrated 100-A and 50-A current shunts for efficiency measurements