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MB39C605 Datasheet

Phase Dimmable PSR LED Driver IC

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MB39C605
Phase Dimmable PSR LED Driver IC
for LED Lighting
Description
MB39C605 is a Primary Side Regulation (PSR) LED driver IC for LED lighting. Using the information of the primary peak current
and the transformer-energy-zero time, it is able to deliver a well regulated current to the secondary side without using an
opto-coupler in an isolated flyback topology. Operating in critical conduction mode, a smaller transformer is required. In addition,
MB39C605 has a built-in phase dimmable circuit and can constitute the lighting system for phase dimming.
It is most suitable for the general lighting applications, for example replacement of commercial and residential incandescent
lamps.
Features
PSR topology in an isolated flyback circuit
High efficiency (>80% : without dimmer) and low EMI by detecting transformer zero energy
TRAIC Dimmable LED lighting
Highly reliable protection functions
Under voltage lock out (UVLO)
Over voltage protection (OVP)
Over current protection (OCP)
Short circuit protection (SCP)
Over temperature protection (OTP)
Switching frequency setting : 30 kHz to 133 kHz
Input voltage range VDD : 9V to 20V
Input voltage for LED lighting applications : AC110VRMS, AC230VRMS
Output power range for LED lighting applications : 5 W to 10 W
Small Package : SOP-8 (3.9 mm × 5.05 mm × 1.75 mm [Max])
Applications
Phase dimmable (Leading/Trailing) LED lighting
LED lighting
Note: This product supports the web-based design simulation tool, Easy DesignSim.
It can easily select external components and can display useful information.
Please access from http://cypress.transim.com/login.aspx
Cypress Semiconductor Corporation
Document Number: 002-08444 Rev. *B
• 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Revised May 22, 2017


Cypress Semiconductor Electronic Components Datasheet

MB39C605 Datasheet

Phase Dimmable PSR LED Driver IC

No Preview Available !

MB39C605
Contents
Description
................................................................................................................................................................... 1
Features
................................................................................................................................................................... 1
Applications
................................................................................................................................................................... 1
1. Pin Assignment............................................................................................................................................................ 3
2. Pin Descriptions........................................................................................................................................................... 3
3. Block Diagram.............................................................................................................................................................. 4
4. Absolute Maximum Ratings ........................................................................................................................................ 5
5. Recommended Operating Conditions........................................................................................................................ 6
6. Electrical Characteristics ............................................................................................................................................ 7
7. Standard Characteristics............................................................................................................................................. 9
8. Function Explanations............................................................................................................................................... 10
8.1 LED Current Control by PSR (Primary Side Regulation) ............................................................................................. 10
8.2 Dimming Function........................................................................................................................................................ 11
8.3 Power-On Sequence ................................................................................................................................................... 12
8.4 Power-Off Sequence ................................................................................................................................................... 13
8.5 IP_PEAK Detection Function ........................................................................................................................................... 13
8.6 Zero Voltage Switching Function ................................................................................................................................. 13
8.7 Protection Functions.................................................................................................................................................... 14
9. I/O Pin Equivalent Circuit Diagram........................................................................................................................... 15
10. Application Examples................................................................................................................................................ 17
10.1 5W Non-isolated Dimming Application ........................................................................................................................ 17
11. Usage Precautions..................................................................................................................................................... 22
12. RoHS Compliance Information ................................................................................................................................. 22
13. Ordering Information ................................................................................................................................................. 22
14. Package Dimensions ................................................................................................................................................. 23
15. Major Changes ........................................................................................................................................................... 24
Document History................................................................................................................................................................. 25
Sales, Solutions, and Legal Information............................................................................................................................. 26
Document Number: 002-08444 Rev. *B
Page 2 of 26


Part Number MB39C605
Description Phase Dimmable PSR LED Driver IC
Maker Cypress
Total Page 26 Pages
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