LED Driver Reference Designs | National Semiconductor — LED Driver Circuits Home->Power Management

LED Driver Circuit Reference Design Library

National offers a wide range of LED drivers for a variety of applications including high-brightness LED lighting. Download complete LED driver circuits and LED driver reference designs below.


NSC
Part Used		 Reference Design Vin Min
(V)		 Vin Max
(V)		 Vout Min
(V)		 Vout Max
(V)		 Iout
(mA)		 Switching Frequency
(kHz)		 Topology PWM
Dimming		 Key Features
Boost LED Driver 1.8 3.4 3.5 4 650 Variable Boost N Simple, Low Vin 650mA Single HB LED Driver
8 x 4 LED Array Driver 4.5 5.5 14.8 16 160 600 Boost Y Drives 32 White LEDs in eight strings of 4. 20mA per string.
Buck LED Driver 8 19 3.7 3.7 735 1600 Buck N Compact, 1A single HB LED Driver
Solar Cell Input LED Driver 12 14 3 4 2000 800 Buck Y Drives one high power LED at 2A
Variable Input LED Driver 12 30 13 24 350 400 SEPIC Y Drives 6 LEDs of any color at 350mA from various battery or regulated inputs
LED Demoboard 8 32 2.3 30 350/1400 Variable Buck N Drives any Luxeon LED or strings of LEDs depending on Vin (min).
Vanity LED 7 11 74 80 30 700 Boost N Drives 20 white LEDs in a single string at 30mA to light a vanity mirror
Automotive LED 9 40 2.3 8 350 Variable Buck N Drives 1-2 Luxeon LEDs. Designed for exterior automotive use.
Brake Tail 8 40 2.3 8 300/900 Variable Buck N Drives 1-2 Luxeon LEDs at different currents from separate power inputs. Designed for exterior automotive use.
Buck LED Driver 20 28 3 4 900 600 Buck Y High Efficiency, 900mA Luxeon III LED Driver

 

WHAT'S NEW
Power Products
  • Constant Current N-Channel Controller with Thermal Foldback for Driving LEDs
  • 75V Constant On-Time PFET Buck Switching Controller
  • 42V Constant On-Time PFET Buck Switching Controller
  • Voltage Mode Active Clamp Controller
  • High Efficiency, Multi Display LED Driver with 128 Exponential Dimming Steps & Integrated OLED Power Supply in 1.2mm × 1.6mm µSMD Package
  • Dual Synchronous Emulated Current-Mode Controller
  • N-Channel Controller for Constant Current LED Drivers
  • LM25037Q - Dual-Mode PWM Controller With Alternating Outputs
  • 1.2A Dual Flash LED Driver System with I2C Compatible Interface
  • PowerWise AVS Energy Management Unit with SPMI

See all new power solutions.

 

 

Power Application Notes
  • AN-1696 Designing a Boost LED Driver Using the LM5022
  • AN-1736 LM3433 HB LED Driver Evaluation Kit
  • AN-1774 LM3410X LED Driver 6-Pin LLP Demo Board
  • AN-1775 LM3410X SEPIC 6-Pin LLP Demo Board
Power Evaluation Boards
  • LM3410XMFLEDEV - $37.50 Description: LM3410 Boost will SOT23 Package evaluation board
  • LM3410XSDLEDEV - $37.50 Description: LM3410 Boost with LLP Package evaluation board
  • LM5035AEVAL - $160.00 Description: Evaluation Board for the PWM Controller with Integrated Half-Bridge and SyncFET Drivers
  • LM3881EVAL - $30.00 Description: Evaluation Board for the LM3881 Power Sequencer
Power Online Seminars


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