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LM3503 - Dual-Display Constant Current LED Driver

General Description

The LM3503 is a white LED driver for lighting applications.

For dual display backlighting applications, the LM3503 provides a complete solution.

The LM3503 contains two internal white LED current bypass FET (Field Effect Transistor) switches.

Key Features

  • 1.
  • 2 Drives up to 4, 6, 8 or 10 White LEDs for Dual Display Backlighting.
  • >80% Peak Efficiency.
  • Output Voltage Protection Options: 16V, 25V, 35V & 44V.
  • Input Under-Voltage Protection.
  • Internal Soft Start Eliminates Inrush Current.
  • 1 MHz Constant Switching Frequency.
  • Analog Brightness Control.
  • Wide Input Voltage Range: 2.5V to 5.5V.
  • Low Profile Packages:.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM3503 www.ti.com SNVS329E – JULY 2005 – REVISED MAY 2013 LM3503 Dual-Display Constant Current LED Driver with Analog Brightness Control Check for Samples: LM3503 FEATURES 1 •2 Drives up to 4, 6, 8 or 10 White LEDs for Dual Display Backlighting • >80% Peak Efficiency • Output Voltage Protection Options: 16V, 25V, 35V & 44V • Input Under-Voltage Protection • Internal Soft Start Eliminates Inrush Current • 1 MHz Constant Switching Frequency • Analog Brightness Control • Wide Input Voltage Range: 2.5V to 5.5V • Low Profile Packages: <1 mm Height – 10 Bump DSBGA – 16 Pin WQFN APPLICATIONS • Dual Display Backlighting in Portable devices • Cellular Phones and PDAs DESCRIPTION The LM3503 is a white LED driver for lighting applications.