Quasi-Resonant, 800V CoolSET™ in DS0-12 Package
Pin Configuration and Functionality
Table of Contents
Product Highlights......................................................................................................... 1
Features ....................................................................................................................... 1
Applications .................................................................................................................. 1
Description ................................................................................................................... 1
1
2
Pin Configuration and Functionality ................................................................................ 3
Representative Block Diagram ........................................................................................ 4
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
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...................................................................................................................................11
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
6
7
8
CoolMOS™ Performance Characteristics..........................................................................19
Input Power Curve ........................................................................................................21
Outline Dimension ........................................................................................................22
Marking .......................................................................................................................23
Revision History ...........................................................................................................23
Data Sheet
2
Revision 1.0
2016-05-12