RDR-131 POWERINT [Power Integrations, Inc.], RDR-131 Datasheet - Page 19

• 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.]

9 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 LEDs (delivering
3 watts).
These results indicate that additional heatsinking may be required for example by
arranging the LED heatsink to contact the top of the SO-8C package of U1.
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Vin (VAC)
115
230
265
85
Source Pin Temperature (°C)
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