LED Lighting

Designers of LED lighting applications need to simplify design complexity and increase energy efficiency in limited PCB space. That’s why we offer a total solution portfolio for low-, mid-, and high power designs. Designers can select the best topology for their application – saving time, lowering system cost and eliminating components. In addition, our Global Power Resource℠, comprised of online tools, FAEs and regional centers staffed by power engineers, is the industry standard for customer design support.

Low Power

For low-power applications, the major challenges include space and cost restrictions as well as the need to improve light radiation and conserve energy. Our primary side, regulated PWM controllers—such as the FL7730 and FL7732—have been engineered to deliver superior light quality, greater perating efficiency, and significant size and cost savings. Each controller features a multi-chip package with MOSFET built in, as well as our TRUECURRENT™ and proprietary linear predict method technologies. Together, they deliver best-in-class constant current and constant voltage operation.

Middle Power

For mid-power applications such as down lights and L-Lights, designs typically start with a requirement for high PF, reduced board space, and the ever-increasing demand for greater energy savings. Fairchild’s CRM PFC PWM controllers—FL6961 and FL7930B/C—address these concerns.

Fairchild’s LED solutions deliver the PF performance that energy regulations require, while eliminating multiple components and the performance limitations of older topologies.

High Power

When designing for street light, wall washing and industrial light applications, the major concerns are high system efficiency, reliability, as well as containing the BOM count and cost. By combining Fairchild’s PWM controllers—such as the FL6961 or FL7930B/C—with our QR flyback technology, such as the FL6300A—you have an ideal design solution for high-power applications. Our QR controllers provide higher efficiency through extended valley switching while further reducing space by integrating SenseFET or MOSFET functionality inside.

Furthermore, Fairchild has leveraged our extensive power supply IP for a combined CRM PFC and LLC half-bridge topology. Our FLS-xxxxXS series of controllers combines a PWM, for half-bridge resonant converters, with two highly integrated power switches, optimized for half-bridge LLC control into a single package. When used in conjunction with one of our CRM PFC controllers, you’ll eliminate dozens of components while significantly improving system efficiency and reliability.

Design Advantages

  • Accurate constant-current control
  • High power efficiency
  • Save board space and reduce manufacturing cost
  • Excellent PF and low THD
  • Dimming/Non-dimming Options

LED Lighting Low Power Block Diagram 1

Our family of building blocks for LED lighting lower power (isolated) systems includes:

LED Lighting Low Power Block Diagram 2

Our family of building blocks for LED lighting low power (non-isolated) systems includes:

LED Lighting Middle Power Block Diagram

Our family of building blocks for LED lighting middle power systems includes:

ApplicationDocument NumberFeatured
Power (W)
Input Voltage
Range (VAC)
LED LightingPDFRD-L012
160 W90 - 265 VACCRM PFC + LLC H/B + 4 Channel CC
LED LightingPDFRD-L011
100 W90 VAC - 265 VACCRM PFC + LLC H/B + 4 Channel CC
LED LightingPDFRD-L013
150 W85 - 277 VAC @ 300 VACMAXCRM PFC + LLC H/B
LED LightingPDFRD-L015
8.4 W85-265VACLow BOM PSR Flyback
LED LightingPDFRD-L008
70 W90VAC - 277VACCRM PFC + QR Flyback
LED LightingPDFRD-L010
30 W90VAC - 265VACSingle Stage Flyback
LED LightingPDFRD-L031H
7.8 W187 - 264 VACPFC Buck
LED LightingPDFRD-L031L
7.8 W90 - 150 VACPFC Buck
LED LightingPDFRD-L034
18.3 W90 - 264VACPFC Buck
LED LightingPDFRD-L033
2.7 W90 - 265 VACPFC Buck
LED LightingPDFRD-L030
2.52 W90 VAC - 264 VACPFC Buck
LED LightingPDFRD-L021H
16.8 W180 - 265 VACPFC PSR Flyback
LED LightingPDFRD-L020H
8.4 W180 - 265 VACPFC PSR Flyback
LED LightingPDFRD-L020L
8.4 W90 - 140 VACPFC PSR Flyback
LED LightingPDFRD-L021L
16.8 W90 - 140 VACPFC PSR Flyback
LED LightingPDFRD-L028
8.4 W90 - 265 V 交流电PFC Buck-Boost
LED LightingPDFRD-L026
16.8 W90 - 265 VACPFC PSR Flyback
LED LightingPDFRD-L025
8.4 W90 - 265 VACPFC PSR Flyback
LED LightingPDFRD-L032
2.7 W90 - 264 VACPFC Buck with Integrated MOSFET
LED LightingPDFRD-L040
3.5 W90 - 265 VPFC Buck-Boost with Integrated MOSFET
LED LightingPDFRD-L041
6.5 W90 - 265 VACPFC PSR Flyback with Integrated MOSFET
LED LightingPDFRD-L042
10 W90 - 265 VACPFC PSR Flyback with Integrated MOSFET