ICE2QR2280G-1(2015) 데이터 시트보기 (PDF) - Infineon Technologies

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ICE2QR2280G-1
(Rev.:2015)

20 W 5 V SMPS Evaluation Board with Quasi - Resonant CoolSET™ ICE2QR2280G-1

Infineon Technologies 

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

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