Primary side startup controller
Table of contents
Table of contents
General description ...........................................................................................................................1
Features ...........................................................................................................................................1
Functional block diagram...................................................................................................................1
Table of contents...............................................................................................................................2
1 Pinout............................................................................................................................................3
2 Application overview ......................................................................................................................5
3 Functional description ....................................................................................................................7
3.1 Soft-start .................................................................................................................................................................7
3.2 X-cap mode .............................................................................................................................................................7
3.3 Secondary synchronization....................................................................................................................................7
3.4 Power circuit ...........................................................................................................................................................7
3.5 Overcurrent and overvoltage fault protection ......................................................................................................7
3.6 Auto-restart timer ...................................................................................................................................................8
3.7 Protection and fault condition...............................................................................................................................8
4 Electrical specifications.................................................................................................................11
5 Ordering information ....................................................................................................................14
5.1 Ordering code definitions.....................................................................................................................................14
6 Packaging ....................................................................................................................................15
Revision history ..............................................................................................................................16
Datasheet
2 of 17
002-25572 Rev. *F
2022-05-18