ICE2QR2280G-1 Datasheet, PDF (5/27 Pages) Infineon Technologies AG – Quasi resonant operation

CoolSET™Q1
ICE2QR2280G-1
Table of Contents
Revision History ....................................................................................................................................................4
Table of Contents ..................................................................................................................................................5
1
Pin Configuration and Functionality ...............................................................................................7
1.1
Pin Configuration with PG-DSO-16/12................................................................................................7
1.2
Pin Functionality ..................................................................................................................................7
2
Representative Block Diagram ........................................................................................................8
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 .....................................................................................................................9
VCC Pre-Charging and Typical VCC Voltage During Start-up ...........................................................9
Soft-start .............................................................................................................................................. 9
Normal Operation ..............................................................................................................................10
Digital Frequency Reduction........................................................................................................10
Up/down counter .....................................................................................................................10
Zero crossing (ZC counter) .....................................................................................................11
Ringing suppression time.............................................................................................................12
Switch on determination..........................................................................................................12
Switch Off Determination .............................................................................................................12
Current Limitation ..............................................................................................................................12
Foldback Point Correction............................................................................................................13
Active Burst Mode Operation ............................................................................................................14
Entering Active Burst Mode Operation.........................................................................................14
During Active Burst Mode Operation ...........................................................................................14
Leaving Active Burst Mode Operation .........................................................................................14
Protection Functions .........................................................................................................................15
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 ...............................................................................................................17
Absolute Maximum Ratings ..............................................................................................................17
Operating Range ...............................................................................................................................17
Characteristics...................................................................................................................................18
Supply Section .............................................................................................................................18
Internal Voltage Reference ..........................................................................................................18
PWM Section ...............................................................................................................................19
Current Sense ..............................................................................................................................19
Soft Start ......................................................................................................................................19
Foldback Point Correction............................................................................................................19
Digital Zero Crossing....................................................................................................................20
Active Burst Mode ........................................................................................................................20
Protection .....................................................................................................................................21
CoolMOS^TM Section .....................................................................................................................21
6
Input power curve ...........................................................................................................................24
7
Outline Dimension...........................................................................................................................25
8
Marking.............................................................................................................................................26
Data Sheet
5
V2.2, 2014-07-10