Quasi-Resonant, 800V CoolSET™ in DS0-12 Package
Pin Configuration and Functionality
Table of Contents
1
2
3
3.1
3.2
3.3
3.3.1
3.3.1.1
3.3.1.2
3.3.1.3
3.3.1.4
3.3.1.5
3.4
3.4.1
3.5
3.5.1
3.5.2
3.5.3
3.6
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
5
6
7
8
Pin Configuration and Functionality ................................................................................ 3
Representative Block Diagram ........................................................................................ 4
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
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
CoolMOS™ Performance Characteristics..........................................................................19
Input Power Curve ........................................................................................................21
Outline Dimension ........................................................................................................22
Marking .......................................................................................................................23
Revision History ...........................................................................................................23
Data Sheet
2 Revision 1.1
2017-06-13
