RDR-131 POWERINT [Power Integrations, Inc.], RDR-131 Datasheet
RDR-131
Related parts for RDR-131
RDR-131 Summary of contents
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... Isolated Constant Current LED Driver Using LNK306DN Specification 85–265 VAC Input 300 mA Output LED Lighting / Bulb Retrofit Application Power Integrations Applications Department Author Document RDR-131 Number March 7, 2007 Date 1.1 Revision Summary and Features • Extremely small form factor, fits within GU10 lamp base • ...
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Table of Contents 1 Introduction...............................................................................................................3 2 Power Supply Specification ......................................................................................5 3 Circuit Diagram.........................................................................................................6 4 Circuit Description ....................................................................................................7 4.1 Configuration and Assembly Details..................................................................7 4.2 AC Input Rectification ........................................................................................7 4.3 LinkSwitch-TN ...................................................................................................7 4.4 Output Feedback...............................................................................................7 5 Bill of Materials .......................................................................................................10 5.1 Filter ...
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Introduction This engineering report describes an LED driver power supply that uses a member of the LinkSwitch-TN family of devices, the LNK306DN. The circuit regulates its load current to 300 mA while developing about 10 V across three series ...
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Figure 2 – Mechanical Positioning of the Power Supply Assembly Inside the GU10 Bulb Socket Base. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page ...
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Power Supply Specification Description Input Voltage Frequency No-load Input Power (230 VAC) Output Output Voltage 1 Output Current 1 Total Output Power Continuous Output Power Efficiency Environmental Conducted EMI Safety Ambient Temperature Page Symbol Min Typ ...
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Circuit Diagram Figure 3a – Circuit Diagram of Filter Board. Figure 3b – Circuit Diagram of Converter Board. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page ...
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Circuit Description 4.1 Configuration and Assembly Details The power supply is configured as a non-isolated buck converter. Since it must fit in a GU10 lamp socket base, the supply was split into 2 interconnected boards. A Faraday shield (the ...
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This voltage is divided by R7 and R1 so the voltage at the FB pin is 1.65 V when the output voltage reaches ~12 V. Due to the interaction with the current sense circuit and the small output capacitor value ...
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Converter Board (Bottom and Top Side) Page Filter Board Figure 4 – Printed Circuit Board Layouts. Tel: +1 408 414 9200 Fax: +1 408 414 9201 Power Integrations www.powerint.com ...
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Bill of Materials The BOM for each board is presented separately. 5.1 Filter Board Bill of Materials Item Qty Ref Des Value 1 1 BR1 MB6S 4.7 µ PCB Terminal ...
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Converter Board Bill of Materials Item Qty Ref Des Value 100 nF 2.2 µ BAV21WS-7 MURS160T3 PCB Terminal AWG ...
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PI Xls Design Spreadsheet ACDC_LinkSwitch- INPUT INFO OUTPUT UNIT LinkSwitch-TN_Rev_2-2.xls: LinkSwitch-TN Design TN_030906; Rev.2.2; Copyright Power Integrations 2006 INPUT VARIABLES VACMIN VACMAX 265 FL VO 12.00 IO 0.330 EFFICIENCY (User 0.72 Estimate) EFFICIENCY (Calculated Estimate) CIN 9.40 Input Stage ...
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OUTPUT CAPACITOR DELTA_V MAX_ESR I RIPPLE FEEDBACK COMPONENTS RBIAS RFB CFB C_SOFT_START Note: The feedback components in the spreadsheet were not used on the power supply because a higher impedance was required by the CC feedback circuit. Page 13 of ...
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Performance 7.1 Efficiency Efficiency measured at different line voltages are collected in the table below. Table 1: Efficiency data measured at different AC input line voltages. 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 70 120 Figure 5 ...
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Output Current Regulation Vs. Line Voltage 400 380 360 340 320 300 280 260 240 220 200 50 100 Figure 6 – Output Current vs. Input Voltage (stabilized, room temperature operation*). 7.3 Output VI Characteristic ...
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Waveforms 8.1 Drain Voltage and Current, Normal Operation Figure 7 – 85 VAC, Full Load. Upper div. DRAIN 0. div, 5 µs / div. Lower: I DRAIN 8.2 Output Current and Voltage ...
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... Figure 13 – 85 VAC, Full Load. Upper div. BULK Lower 200 mA div. DRAIN Page RDR-131 LED Driver – LNK306DN Figure 12 – 265 VAC, Full Load. Upper 100 V / div. BULK Lower 200 mA div. DRAIN Figure 14 – 265 VAC, Full Load. ...
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Startup Output Voltage and Current Figure 15 – 85 VAC Full Load. Upper div. out Lower 200 mA / div div. out 8.6 Fault Conditions Figure 17 – Drain ...
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Thermal Measurements The power supply assembly was installed into the lamp socket base and the temperature of the LNK306DN SOURCE pin was measured, while the room ambient temperature was 25 °C. The power supply was driving the three load ...
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Conducted EMI The measurements were taken with the power supply driving the 3 LEDs. The worst- case input voltage was at 230 VAC, where the margin to the test limits was about 7 dBµV. dBµV dBµ ...
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Competitive Product EMI Power Integrations 01.Feb 07 08:52 dBµV dBµV 100 CLRWR CLRWR EN55022Q 60 EN55022A -10 -20 150 kHz Figure 21 – Conducted EMI ...
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Revision History Date Author 02/16/2007 JAJ 03/7/2007 Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Revision Description & changes 1.0 Initial publication 1.1 Updated pictures Reviewed Page ...
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Page Notes Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com ...
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For the latest updates, visit our website: www.powerint.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any ...