Document Number: 002-08441 Rev.*A

Page 2 of 36

MB39C604

Contents

1. Pin Assignment ................................................................................................................................................................. 3

2. Pin Descriptions................................................................................................................................................................ 4

3. Block Diagram ................................................................................................................................................................... 5

4. Absolute Maximum Ratings ............................................................................................................................................. 6

5. Recommended Operating Conditions............................................................................................................................. 7

6. Electrical Characteristics ................................................................................................................................................. 8

7. Standard Characteristics................................................................................................................................................ 10

8. Function Explanations.................................................................................................................................................... 11

8.1

LED Current Control by PSR (Primary Side Regulation) ............................................................................................. 11

8.2

PFC (Power Factor Correction) Function .................................................................................................................... 12

8.3

Dimming Function ....................................................................................................................................................... 12

8.4

Power-On Sequence ................................................................................................................................................... 13

8.5

Power-Off Sequence ................................................................................................................................................... 14

8.6

IP_PEAK Detection Function ........................................................................................................................................... 14

8.7

Zero Voltage Switching Function ................................................................................................................................. 14

8.8

Protection Functions.................................................................................................................................................... 15

9. I/O Pin Equivalent Circuit Diagram ................................................................................................................................ 16

10. Application Examples..................................................................................................................................................... 18

10.1

50W Isolated and PWM Dimming Application ............................................................................................................. 18

10.2

5W Non-Isolated and Non-Dimming Application ......................................................................................................... 24

11. Usage Precautions.......................................................................................................................................................... 29

12. Ordering Information ...................................................................................................................................................... 30

13. Marking Format ............................................................................................................................................................... 31

14. Recommended Mounting Condition [JEDEC Level3] Lead Free ................................................................................ 32

14.1

Recommended Reflow Condition ................................................................................................................................ 32

14.2

Reflow Profile .............................................................................................................................................................. 32

15. Package Dimensions ...................................................................................................................................................... 33

16. Major Changes ................................................................................................................................................................ 34

Document History................................................................................................................................................................. 35