RDK-115 Power Integrations, RDK-115 Datasheet - Page 3

• Manufacturer Part Number: RDK-115
• Description: KIT REFERENCE DESIGN W/TN376PN
• Manufacturer: Power Integrations
• Series: TinySwitch®-PKr

Specifications of RDK-115

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 4, Isolated
• Power - Output: 7.5W
• Voltage - Output: 3.3V, 5V, 12V, -12V
• Current - Output: 500mA, 500mA, 250mA, 30mA
• Voltage - Input: 85 ~ 265VAC
• Regulator Topology: Flyback
• Frequency - Switching: 132kHz
• Board Type: Fully Populated
• Utilized Ic / Part: TNY376
• Product: Accessories & Kits
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 596-1145

Table of Contents
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Page 3 of 36
4.1
4.2
4.3
4.4
7.1
7.2
7.3
7.4
7.5
7.6
9.1
9.2
9.3
9.4
11.1
11.2
11.3
11.4
11.5
11.6
13.1
Introduction .................................................................................................................5
Power Supply Specification ........................................................................................6
Schematic ...................................................................................................................7
Circuit Description.......................................................................................................8
PCB Layout...............................................................................................................10
Bill of Materials .........................................................................................................11
Transformer Specification .........................................................................................13
Design Spreadsheet .................................................................................................16
Performance Data.....................................................................................................18
9.1.1
9.4.1
9.4.2
11.5.1
11.5.2
Thermal Performance............................................................................................24
Waveforms ............................................................................................................25
Conducted EMI .....................................................................................................32
Appendix A............................................................................................................33
Revision History ....................................................................................................34
Input EMI Filtering................................................................................................8
TinySwitch-PK Primary ........................................................................................8
Output Feedback .................................................................................................9
Bypass/Multifunction Pin......................................................................................9
Electrical Diagram..............................................................................................13
Electrical Specifications .....................................................................................13
Materials ............................................................................................................13
Transformer Build Diagram................................................................................14
Copper Foil Preparation.....................................................................................14
Transformer Construction ..................................................................................15
Efficiency ...........................................................................................................18
No-load Input Power ..........................................................................................19
Available Standby Output Power .......................................................................20
Regulation .........................................................................................................21
Drain Voltage and Current, Normal Operation...................................................25
Output Voltage Start-up Profile ..........................................................................25
Drain Voltage and Current Start-up Profile ........................................................26
Load Transient Response..................................................................................26
Output Ripple Measurements ............................................................................29
Line Surge .........................................................................................................31
Output Power Delivery Using a TNY375P .........................................................33
Active Mode CEC Measurement Data........................................................18
Load Regulation, Room Temperature, 115 VAC input. ..............................21
Line.............................................................................................................23
Ripple Measurement Technique.................................................................29
Measurement Results.................................................................................30
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