ICE2QR2280G-1_15 Datasheet, PDF (2/14 Pages) Infineon Technologies AG – 20 W 5 V SMPS Evaluation Board with Quasi- Resonant CoolSET™ ICE2QR2280G-1

20 W 5 V SMPS Evaluation Board with
Quasi-Resonant CoolSET™ ICE2QR2280G-1
Abstract
6.2
Normal mode operation...........................................................................................................................5
6.3
Primary side peak current control...........................................................................................................5
6.4
Digital frequency reduction .....................................................................................................................5
6.5
Burst mode operation...............................................................................................................................6
7
Protection features .....................................................................................................6
7.1
VCC over voltage and under voltage protection......................................................................................6
7.2
Foldback point protection .......................................................................................................................6
7.3
Open loop/over load protection..............................................................................................................6
7.4
Adjustable output overvoltage protection.............................................................................................7
7.5
Short winding protection .........................................................................................................................7
7.6
Auto restart for over temperature protection........................................................................................7
8
Circuit diagram...........................................................................................................8
9
PCB layout .................................................................................................................9
9.1
Top side......................................................................................................................................................9
9.2
Bottom side................................................................................................................................................9
10
Component list ......................................................................................................... 10
11
Transformer construction .......................................................................................... 11
12
Test results .............................................................................................................. 11
12.1
Efficiency, regulations and output ripple .............................................................................................11
12.2
Standby power ........................................................................................................................................13
13
References ............................................................................................................... 13
Revision History........................................................................................................................ 13
Application Note
2
Revision 1.1, 2015-04-02