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MB39C603 Datasheet

Phase Dimmable PSR LED Driver IC

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MB39C603
Phase Dimmable PSR LED Driver IC
for LED Lighting
Description
MB39C603 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, MB39C603 has a
built-in phase dimmable circuit and can constitute flicker less lighting systems for phase dimming with low-component count. 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 power factor (>0.9 : without dimmer) in Single Conversion
High efficiency (>80 % : without dimmer) and low EMI by detecting transformer zero energy
Built-in phase dimmable circuit
Dimming curve based on conduction angle
Dimmer hold current control
Highly reliable protection functions
Under voltage lock out (UVLO)
Over voltage protection (OVP)
Over current protection (OCP)
Over temperature protection (OTP)
Switching frequency setting : 30 kHz to 133 kHz
Input voltage range VDD : 9 V to 20 V
Input voltage for LED lighting applications : AC110VRMS
Output power range for LED lighting applications : 15 W to 50 W
Package : SOP-14 (5.30 mm × 10.15 mm × 2.25 mm [Max])
Applications
Phase dimmable (Leading/Trailing) LED lighting
LED lighting
Cypress Semiconductor Corporation
Document Number: 002-08450 Rev. *B
• 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Revised May 22, 2017


Cypress Semiconductor Electronic Components Datasheet

MB39C603 Datasheet

Phase Dimmable PSR LED Driver IC

No Preview Available !

MB39C603
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 PFC (Power Factor Correction) Function .................................................................................................................... 11
8.3 Phase Dimming Function ............................................................................................................................................ 11
8.4 HOLD Current Control Function .................................................................................................................................. 12
8.5 Power-On Sequence ................................................................................................................................................... 13
8.6 Power-Off Sequence ................................................................................................................................................... 14
8.7 IP_PEAK Detection Function ........................................................................................................................................... 14
8.8 Zero Voltage Switching Function ................................................................................................................................. 14
8.9 Protection Functions.................................................................................................................................................... 15
9. I/O Pin Equivalent Circuit Diagram........................................................................................................................... 16
10. Application Examples................................................................................................................................................ 18
10.1 17W Isolated and Phase Dimming Application ............................................................................................................ 18
11. Usage Precautions..................................................................................................................................................... 26
12. RoHS Compliance Information ................................................................................................................................. 26
13. Ordering Information ................................................................................................................................................. 26
14. Package Dimensions ................................................................................................................................................. 27
15. Major Changes ........................................................................................................................................................... 28
Document History................................................................................................................................................................. 29
Sales, Solutions, and Legal Information............................................................................................................................. 30
Document Number: 002-08450 Rev. *B
Page 2 of 30


Part Number MB39C603
Description Phase Dimmable PSR LED Driver IC
Maker Cypress
Total Page 30 Pages
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