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New low-power LED driver with integrated MOSFET helps designers save board space and design time

Google 우선 소스Published2012.07.24 15:39

As the LED lighting market continues to grow, designers are demanding solutions that meet limited circuit board footprints, meet circuit protection and system reliability requirements while complying with global energy regulations, and simplify supply chain logistics. To help designers meet these requirements, Fairchild Semiconductor (NYSE: FCS) has expanded its portfolio of LED lighting driver solutions to include optimized low-power products.

As a leader in MOSFET technology, Fairchild continues to offer the latest LED lamp drivers. The FLS0116, FLS3217, and FLS3247, which integrate MOSFETs and PFC, are optimally designed for low-power LED applications. The addition of integrated power MOSFETs helps reduce design time while minimizing board space and overall component count. By providing integrated protection features such as cycle-by-cycle current limiting, over-temperature protection (OTP), and under-voltage lockout (UVLO), these devices can significantly improve LED lamp system reliability.

The FLS0116 can enable/disable the PFC function by utilizing the “adopted digital” technique that automatically detects the AC and DC input voltage conditions, and also provides programmable oscillation frequency, analog dimming, and soft-start functions. The PSRFLS3217 and FLS3247, which provide primary-side regulation (PSR) function, can support isolated flyback converter and non-isolated DC-DC converter applications. Additionally, the devices feature accurate constant-current control (CC) to accurately regulate output current and linear frequency control to increase efficiency for easier design.

Fairchild's complete LED solutions for low, medium and high power designs save space, provide high reliability and enhance overall system efficiency by reducing external component count. By offering components integrated into a single IC, Fairchild leverages proven, high-efficiency, and effective technologies for power ranges above 1W. With multi-topology products that provide energy-efficient solutions, Fairchild helps designers achieve high power factor and low total harmonic distortion (THD) while complying with global energy regulations. In addition, Fairchild provides system expertise and design resources to help designers get their LED IC-based products to market more quickly.

For further information and sample orders, please refer to:

http://www.fairchildsemi.com/pf/FL/FLS0116.html
http://www.fairchildsemi.com/pf/FL/FLS3217.html
http://www.fairchildsemi.com/pf/FL/FLS3247.html

Features and Benefits:

FLS0116
• Built-in MOSFET (1A/550V)
• Built-in HV supply circuit for automatic biasing
• Low operating current of 0.85mAa (typical)
• Current-sensing pin open protection
• Reduced component count by eliminating the need for transformers and electrolytic capacitors
• Digital PFC function (>0.9)
• Auto-convertible AC-DC and DC-DC inputs
• Analog dimming function
• Programmable LED current and frequency

FLS3217/FLS3247
• Built-in MOSFET (FLS3217: 1A/700V or FLS3247: 4A/700V)
• Open/short LED protection
• Low operating current: 5mA (typical)
• Reduced component count by eliminating the need for transformers and electrolytic capacitors
• High PF (>0.9)
• Low THD (Class C)
• CC tolerance: <±5% within the system

Fairchild offers proven total driver solutions for low, medium and high power LED lighting applications. As an extension to Fairchild’s LED total solution family, these devices are included in the FL7730 and FL7732 LED drivers for TRIAC and analog dimming and non-dimming applications. All devices in this complete portfolio provide designers with a total solution package for their LED design needs, with comprehensive access to Fairchild's Excel-based LED driver design tools, application notes, reference designs, evaluation boards, and more.

For more information on Fairchild’s LED lighting solutions, please visit:
www.fairchildsemi.com/ledlighting

Fairchild Semiconductor: Solutions for Your Success™.

Price: Price per unit based on 1,000 units supplied

FLS0116MX: $1.29
FLS3217M: $0.92
FLS3217N: $1.27
FLS3247N: $1.36


Samples available upon request

Shipping: 8-12 weeks after order is received

contact:

To contact Fairchild Semiconductor about this product, please click on the address below:
http://www.fairchildsemi.com/cf/sales_contacts/ .

For more information about other products, design tools, and sales contacts, please visit:
http://www.fairchildsemi.com .

Editor's Note: See below for data sheets in PDF format
w.fairchildsemi.com/ds/FL/FLS0116.pdf" target=_blank>http://www.fairchildsemi.com/ds/FL/FLS0116.pdf
http://www.fairchildsemi.com/ds/FL/FLS3217.pdf
http://www.fairchildsemi.com/ds/FL/FLS3247.pdf

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