LM3503ITL-44
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LM3503ITL-44

  • Category:converter
  • Product Name:Dual display constant current LED drivers
  • Manufacturers:NSC
  • Production Batch Number:09+
  • Encapsulation:10-MicroSMD
  • Stock Status:There is stock
  • Stock Quantity:6000
  • Minimum order quantity: 1
  • Details:Click here to find pdf information on LM3503ITL-44
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  • Product introduction

peculiarity

  • Drive up to 4, 6, 8 or 10 dual-display backlit white LEDs
  • > 80% peak efficiency
  • Output voltage protection options: 16V, 25V, 35V and 44V
  • Input undervoltage protection
  • Internal soft-start eliminates inrush current
  • Constant switching frequency of 1 MHz
  • Analog brightness control
  • Wide input voltage range: 2.5V to 5.5V
  • Low profile package:
  • 10 bump MicroSMD
  • 16-pin LLP

illustrate

The LM3503 is a driver for white LED lighting applications. For dual display backlight applications, the LM3503 provides a complete solution. The LM3503 contains two white LEDs with current bypass FET (Field Effect Transistor) switches. The white LED current is adjustable from the digital DC voltage filtering PWM (Pulse Width Modulation) signal at the CNTRL pin to an analog converter or RC.

With no external compensation, cycle-by-cycle current limiting, output overvoltage protection, input undervoltage protection, and dynamic white LED current control capability, the LM3503 offers superior performance over other step-up white LED drivers.


apply

  • Dual backlight display on portable devices
  • Cellular phones and PDAs

andLM3503ITL-44Related ICs are:


Model Manufacturers lot number encapsulation illustrate
LM3503ITL-44 NSC 09+ 10-MicroSMD Dual display constant current LED drivers
LM3503ITL-35 NSC 11+ MICRO SMD Dual display constant current LED drivers

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