RDR-131 POWERINT [Power Integrations, Inc.], RDR-131 Datasheet - Page 2

• Manufacturer Part Number: RDR-131
• Description: Reference Design Report for 3 W Non- Isolated Constant Current LED Driver Using LNK306DN
• Manufacturer: POWERINT [Power Integrations, Inc.]

Table of Contents
1
2
3
4
5
6
7
8
9
10 Conducted EMI.......................................................................................................20
11 Revision History......................................................................................................22
Important Note:
This board has no safety isolation. Therefore, all testing should be performed using an
isolation transformer to provide the AC input to the prototype board.
4.1
4.2
4.3
4.4
5.1
5.2
7.1
7.2
7.3
8.1
8.2
8.3
8.4
8.5
8.6
10.1 Competitive Product EMI.................................................................................21
Introduction...............................................................................................................3
Power Supply Specification ......................................................................................5
Circuit Diagram.........................................................................................................6
Circuit Description ....................................................................................................7
Bill of Materials .......................................................................................................10
PI Xls Design Spreadsheet.....................................................................................12
Performance ...........................................................................................................14
Waveforms .............................................................................................................16
Thermal Measurements..........................................................................................19
Configuration and Assembly Details..................................................................7
AC Input Rectification ........................................................................................7
LinkSwitch-TN ...................................................................................................7
Output Feedback...............................................................................................7
Filter Board Bill of Materials.............................................................................10
Converter Board Bill of Materials.....................................................................11
Efficiency .........................................................................................................14
Output Current Regulation Vs. Line Voltage....................................................15
Output VI Characteristic ..................................................................................15
Drain Voltage and Current, Normal Operation.................................................16
Output Current and Voltage.............................................................................16
Drain Current and Bulk Capacitor Voltage.......................................................17
Startup Drain Current and Bulk Capacitor Voltage ..........................................17
Startup Output Voltage and Current ................................................................18
Fault Conditions ..............................................................................................18
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
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