Quasi-Resonant, 650V CoolSET™ in DS0-12 Package
Table of contents
Table of contents
Table of contents ............................................................................................................................ 2
1
Pin Configuration and Functionality ................................................................................ 3
2
Representative Block Diagram ........................................................................................ 4
3
3.1
3.2
3.3
3.3.1
3.3.1.1
3.3.1.2
3.3.2
3.3.2.1
3.3.3
3.4
3.4.1
3.5
3.5.1
3.5.2
3.5.3
3.6
Functional Description ................................................................................................... 5
Introduction............................................................................................................................................. 5
Soft-start .................................................................................................................................................. 5
Normal Operation ................................................................................................................................... 6
Digital Frequency Reduction ............................................................................................................. 6
Up/down counter..........................................................................................................................6
Zero crossing (ZC counter) ........................................................................................................... 7
Ringing suppression time .................................................................................................................. 8
Switch on determination .............................................................................................................. 8
Switch off determination ................................................................................................................... 8
Current Limitation...................................................................................................................................9
Foldback Point Correction ................................................................................................................. 9
Active Burst Mode..................................................................................................................................10
Entering Active Burst Mode Operation ............................................................................................ 10
During Active Burst Mode Operation ............................................................................................... 10
Leaving Active Burst Mode Operation ............................................................................................. 11
Protection Functions............................................................................................................................. 12
4
4.1
4.2
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.3.7
4.3.8
4.3.9
4.3.10
Electrical Characteristics ...............................................................................................13
Absolute Maximum Ratings .................................................................................................................. 13
Operating Range....................................................................................................................................14
Characteristics ....................................................................................................................................... 14
Supply Section ................................................................................................................................. 14
Internal Voltage Reference .............................................................................................................. 15
PWM Section.....................................................................................................................................15
Current Sense ................................................................................................................................... 15
Soft Start...........................................................................................................................................15
Foldback Point Correction ............................................................................................................... 16
Digital Zero Crossing ........................................................................................................................ 16
Active Burst Mode ............................................................................................................................ 17
Protection ......................................................................................................................................... 17
CoolMOS™ Section ........................................................................................................................... 18
5
CoolMOS™ Performance Characteristics..........................................................................19
6
Input Power Curve ........................................................................................................21
7
Outline Dimension ........................................................................................................22
8
Marking .......................................................................................................................23
Revision History ............................................................................................................................23
Data Sheet
2
Revision 2.3
2017-09-12
