TIDT369A
November 2023 – April 2024
1
Description
Features
1
Applications
Resources
2
System Description
2.1
System Block Diagram
2.2
Key System Specification
2.3
Design Consideration
2.3.1
Boost Inductor Design
2.3.2
High Frequency Power Switch Selection
2.3.3
Input AC Voltage Sensing
2.3.4
Bulk Voltage Sensing
2.3.5
Input Current Sensing
2.3.6
Baby Boost Design
2.3.7
Relay
2.3.8
Protection
2.3.8.1
Over Voltage Protection
2.3.8.2
Over Current Protection
3
Power Up
3.1
Required Equipment
3.2
Considerations
3.3
Start-Up Sequence
4
Testing Results
4.1
Start-Up Waveform
4.2
THD Performance
4.3
Power Factor
4.4
Efficiency
4.4.1
Efficiency Graph
4.4.2
Efficiency Data
4.5
E-meter Performance
4.5.1
E-meter Graphs
4.5.2
E-meter Data
4.6
Load Transients
4.7
Input Current Waveforms
4.8
AC Drop Test
4.9
Thermal Images
5
External Reference
1
Applications
Rack and server PSU with 48V output
Server PSU with 12V output
Merchant telecom rectifiers
Industrial AC-DC
Single phase online UPS