DAK-85 Power Integrations, DAK-85 Datasheet - Page 3

• Manufacturer Part Number: DAK-85
• Description: DESIGN ACCELERATOR KIT LP SWITCH
• Manufacturer: Power Integrations
• Series: LinkSwitch®-LPr

Specifications of DAK-85

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 2W
• Voltage - Output: 6V
• Current - Output: 330mA
• Voltage - Input: 90 ~ 265VAC
• Regulator Topology: Flyback
• Frequency - Switching: 66kHz
• Board Type: Bare (Unpopulated) and Fully Populated
• Utilized Ic / Part: LNK562, LNK563, LNK564
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 596-1104

Table of Contents
1
2
3
4
5
6
7
8
9
10
11
12
13
Important Note:
Although this board is designed to satisfy safety isolation requirements, the engineering
prototype has not been agency approved. Therefore, all testing should be performed
using an isolation transformer to provide the AC input to the prototype board.
Page 3 of 32
4.1
4.2
4.3
4.4
4.5
7.1
7.2
7.3
7.4
7.5
8.1
8.2
8.3
10.1
10.2
10.3
10.4
Introduction .................................................................................................................4
Power Supply Specification ........................................................................................6
Schematic ...................................................................................................................7
Circuit Description.......................................................................................................7
PCB Layout.................................................................................................................9
Bill Of Materials.........................................................................................................10
Transformer Specification .........................................................................................11
Performance Data.....................................................................................................16
8.1.1
Thermal Performance ...............................................................................................18
10.4.1
10.4.2
Waveforms ............................................................................................................20
Conducted EMI .....................................................................................................25
AC Line Surge.......................................................................................................27
Revision History ....................................................................................................28
Input and EMI Filtering.........................................................................................7
LinkSwitch-LP Feedback .....................................................................................7
Primary Clamp and Transformer Construction ....................................................8
Output Rectification and Filtering.........................................................................8
Optional Components ..........................................................................................8
Electrical Diagram..............................................................................................11
Electrical Specifications .....................................................................................11
Materials ............................................................................................................12
Transformer Build Diagram................................................................................12
Design Spreadsheet ..........................................................................................14
Efficiency ...........................................................................................................16
No-Load Input Power.........................................................................................17
Regulation .........................................................................................................17
Drain Voltage and Current, Normal Operation...................................................20
Output Voltage Start-Up Profile, Battery Load ...................................................21
Drain Voltage and Current Start-Up Profile........................................................22
Output Ripple Measurements ............................................................................23
Active Mode CEC Measurement Data........................................................16
Ripple Measurement Technique.................................................................23
Measurement Results.................................................................................24
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