LT3003

• Product introduction

LT3003 triple LED Ballaster with PWM

peculiarity

• 3% LED Current Matching 3% LED current matching
• Up to 350mA Continuous Current per LED String Up to 350mA of continuous current per LED string
• Up to 3000:1 True Color PWMTM Dimming Range Up to 3000:1 True Color PWMTM dimming range
• PWM Input Disconnects LED StringsThe PWM input disconnects the LED string
• Can Operate in Buck, Boost and Buck-Boost ModesCan operate in buck, boost and buck-boost modes
• Wide Input Range: 3V to 40VWide input voltage range: 3V to 40V
• Overtemperature OutputsOverheated output
• Works with LT1618, LT3477, LT3474, LT3475, LT3476, LTC3783LT1618, LT3477, LT3474, LT3475, LT3476, LTC3783 compatible
• Thermally Enhanced 10-Pin MSOP PackageThermally enhanced 10-pin MSOP package
• descriptionThe LT3003 drives three separate strings of LEDs up to 350mA/channel with 3% accurate current matching, resulting in uniform LED brightness and intensity.The LT3003 drives three independent LED strings 350mA/channel with 3% current matching for accurate, consistent LED brightness and intensity. This approach is superior to conventional methods of running three separate channels with external ballast resistors requiring expensive factory calibration.This method is superior to traditional methods and requires expensive factory calibration with external ballast resistors to run three separate channels.

  The LT3003 operates in boost mode, “buck mode” and “buck-boost mode”.The LT3003 operates in boost mode, "buck mode" and "buck-boost mode". A True Color PWM Dimming ratio of up to 3000:1 is achievable using a logic-level signal at the PWM pin for all modes without the need for external level-shifting circuitry.Logic level signals on the PWM pin in all modes, without the need for external level shifting circuitry, can achieve a true color PWM dimming ratio of up to 3000:1. For applications with input supply above and below the output voltage of the LED strings, the LT3003 allows the LEDs to be returned to the input supply (“buck-boost mode”) instead of being limited to only SEPIC solutions.For applications above and below the output voltage of the LED string and input supply, the LT3003 allows the LED to return to the input supply (buck-boost mode), rather than being limited to SEPIC solutions.

  The LT3003 is ideal for high power LED driver applications such as TFT LCD backlighting and heads-up displays.The LT3003 is ideal for high power LED driver applications such as TFT LCD backlights and heads-up displays. Additional overtemperature outputs allow appropriate system management for increased reliability.Additional overtemperature output allows for proper system management and improves reliability.

  The LT3003 is available in a small 10-pin MSE package.The LT3003 is a small 10-pin MSE bag.

  apply

  • High Power LED BallasterHigh-power indicator Ballaster
  • Automotive LightingAutomotive lighting
  • Video Camerascamera
  • TFT LCD BacklightingTFT LCD backlight