TIDT339
june 2023
1
Description
Features
Applications
1
Test Prerequisites
1.1
Voltage and Current Requirements
1.2
Required Equipment
1.3
Testing Conditions
1.4
Considerations
1.5
Dimensions
2
Testing and Results
2.1
Efficiency Graphs and Data
2.1.1
Efficiency Graph: Light Load Performance
2.1.2
Efficiency Graph: Available Output Power Versus Input Power
2.1.3
Efficiency Graph: Full Load Performance
2.1.4
Efficiency Data
17
18
19
2.2
Thermal Images
2.3
Static Output Voltage Variation versus Load
2.3.1
Light Load Range
2.3.2
Light to Full Load Range
2.4
EMI Measurement According to EN55022 Class-B Quasi-Peak Limits
3
Waveforms
3.1
Switching on Q1 (VDS Voltage) at Full Load
3.2
Output Voltage Ripple
3.3
Load Transients
3.4
Start-Up and Shutdown Sequence
3.4.1
Start-Up Sequence
3.4.1.1
Load Current 0 A
3.4.1.2
Load Current 1.7 A
3.4.2
Shutdown Sequence
Features
185-V
AC
to 265-V
AC
input, 50 Hz and 60 Hz; 12-V, 2.1-A output
Over 85% average 4-point efficiency
Over 82% efficiency at 2% load (0.4 W)
Less than 6-mW standby power losses
Protected against output short circuits