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OB3330

20W LED Driver Using Demo Board



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OB3330 pdf
20W LED Driver Using OB3330
LED48V0.4AOB3330.00
Subject
OB3330 Demo Board Manual
Board Model: LED48V0.4A-OB3330.00
Doc. No.: OB_DOC_DBM_A_333000
Key features:
Primary-side control with single stage PFC for LED driver
Minimum BOM component amount
Power factor >0.9
THD meet IEC61000-3-2 Class C
Short circuit protection
Meet EN55015 & FCC Part 15 EMI
Revision History
Revise Date Version Reason/Issue
2011-12-27 00
First issue
©On-Bright Electronics
Confidential
OB_DOC_DBM_A_333000
1



No Preview Available !

OB3330 pdf
20W LED Driver Using OB3330
LED48V0.4AOB3330.00
Contents Index
1. Adapter Module Specification ..................................................................................................... 4
1.1. Input Characteristics ....................................................................................................................... 4
1.2. Output Characteristics .................................................................................................................... 4
1.3. Performance Specifications ............................................................................................................ 4
1.4. Protection Features......................................................................................................................... 4
1.5. Environments .................................................................................................................................. 4
2.
2.1.
2.2.
2.3.
2.4.
2.4.1.
2.4.2.
2.5.
LED Module Information .............................................................................................................. 5
Schematic ....................................................................................................................................... 5
Bill of material.................................................................................................................................. 6
PCB Gerber File.............................................................................................................................. 7
LED Module Snapshot .................................................................................................................... 8
Transformer Specification ............................................................................................................... 8
Transformer Winding data............................................................................................................... 8
LED Module Snapshot .................................................................................................................... 9
3.
3.1.
3.1.1.
3.1.2.
3.1.3.
3.2.
3.2.1.
3.2.2.
3.2.3.
3.3.
3.3.1.
3.3.2.
Performance Evaluation............................................................................................................. 10
Input Characteristics ..................................................................................................................... 10
Input current .................................................................................................................................. 10
Efficiency....................................................................................................................................... 10
Power Factor & THD ..................................................................................................................... 10
Output Characteristics ...................................................................................................................11
Output Current Regulation .............................................................................................................11
Ripple & Noise ...............................................................................................................................11
Output Voltage & Current Waveform............................................................................................. 12
EMI Test ........................................................................................................................................ 14
Conducted EMI Test...................................................................................................................... 14
Radiation EMI Test ........................................................................................................................ 16
3.4Thermal Test...................................................................................................................................... 17
3.5. OVP ................................................................................................................................................... 17
3.6 Short Circuit Protection ................................................................................................................... 17
3.7 Other Important Waveform .............................................................................................................. 19
3.7.1 MOSFET Vds & Rectifier Vak @output start / normal / short .......................................................... 19
3.7.2 MOSFET Voltage and Current waveform ..................................................................................... 20
©On-Bright Electronics
Confidential
OB_DOC_DBM_A_333000
2



Part Number OB3330
Description 20W LED Driver Using Demo Board
Maker On-Bright - On-Bright
Total Page 21 Pages
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