LED Lighting

Fairchild offers a wide range of LED lighting solutions for different power levels to best suit your design needs. For more information, see reference designs.

Universal Input 12W LED Lighting RD-226

Typical Applications: Decoration indication and commercial

This solution is an isolated, primary-side regulated off-line AC-DC converter in fly back topology. It has a universal input voltage range of 85VRMS to 265VRMS at a line frequency of 50Hz to 60Hz. It has one constant current output, that is selectable between 350mA and 700mA and offers a maximum output voltage of 17V. The FAN102 controller used in this design is a highly integrated green mode PWM controller.
  • Current accuracy is > 5%
  • Voltage limit accuracy is > 5%
universal input diagram
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European Input LED Ballast RD-270

Typical Application: LED Table Lamp

This solution for an isolated LED ballast consists of the FAN7527 boundary mode PFC controller, the FAN4272IMU8 dual RRIO CMOS amplifi er and the FQPF6N70 QFET MOSFET. The input voltage range is 185VRMS to 265VRMS and the solution features one DC output with a constant current of 700mA @ 48V max.
  • Single stage high power factor design
  • Very cost effective
  • Efficiency >85% at full load
  • PF > 0.93 at nominal input voltage
  • Output current can be easily adjusted
european input diagram
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200W Power Supply For LED Lighting RD-271

Typical Application: LED Street Lights

This solution for a 200W power supply utilizes the FSFR2100 Fairchild Power Switch, (FPS). The input voltage range is 90VRMS to 265VRMS and there are six outputs with 0.7A/48V max. each. This design consists of a high power factor pre-regulator based on the FAN6961 voltage mode PFC controller and an isolated DC-DC converter based on a resonant LLC topology.
  • Very compact design
  • Effi ciency >94% at full load
  • 1.2W standby power
  • Low EMI
  • Heatsink for PFC switch only
  • Dimmable via PWM signal
universal input diagram
Click to enlarge
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AC Input 90V ~ 264V 190V ~ 264V 85V ~ 264V
LED Output 1 Ch, 350mA, 2V ~ 24V
1 Ch, 700mA, 2V ~ 24V
1 Ch, 1000mA, 2V ~ 24V
1 Ch, 350mA, 3V ~ 48V
1 Ch, 700mA, 3V ~ 48V
1 Ch, 1000mA, 3V ~ 48V
6 Ch, 350mA, 15V ~ 96V
6 Ch, 700mA, 15V ~ 48V
6 Ch, 1000mA, 15V ~ 34V
Power consumption <25W 25W ~ 100W >100W
PFC No Yes, PF>0.9 Yes, PF > 0.9
Current Accuracy ±5% for DC level ±5% for DC level ±5% for DC level
Proposed Topology Primary Side Regulation Quasi-Resonant Converter BCM PFC + LLC
Target Efficiency @
Full Load @ AC110
~80% >85% >90%
Application Decoration/Indication/
Commercial
Table/Garden General/Street
 
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