Multi-Display Inductorless LED Driver with 32 Exponential Dimming Steps in micro SMD
LM2756TMEV
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Description & Features

Technical documentation

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Key Document

Description

The LM2756 is a highly integrated, switched-capacitor, multi-display LED driver that can drive up to 8 LEDs in parallel with a total output current of 180mA. Regulated internal current sources deliver excellent current and brightness matching in all LEDs

The LM2756 is a highly integrated, switched-capacitor, multi-display LED driver that can drive up to 8 LEDs in parallel. The regulated internal current sources on the evaluation boards are set-up to deliver 20mA to each LED delivering excellent current and brightness matching. Utilizing the I 2 C compatible interface, the user can configure the LM2756 evaluation board to drive the eight LEDs in any of the numerous LED group configurations (4:3:1, 5:2:1, 6:1:1, etc.).

Features
  • Drives up to 8 LEDs with up to 30mA of Diode Current each
  • 32 Exponential Dimming Steps with 800:1 Dimming Ratio for Group A (Up to 6 LEDs)
  • 8 Linear Dimming States for Groups B (Up to 3 LEDs) and D1C (1 LED)
  • Programmable Auto-Dimming Function
  • 3 Independently Controlled LED Groups Via I 2C Compatible Interface
  • Up to 90% Efficiency
  • Total Solution Size <21mm2
  • Low Profile 20 Bump micro SMD Package (1.615mm x 2.015mm x 0.6mm)
  • 0.4% Accurate Current Matching
  • Internal Soft-Start Limits Inrush Current
  • True Shutdown Isolation for LEDs
  • Wide Input Voltage Range (2.7V to 5.5V)
  • Active High Hardware Enable

Applications:

  • Dual Display LCD Backlighting for Portable Applications
  • Large Format LCD Backlighting
  • Display Backlighting with Indicator Light

 


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LM2756TMEV:
Multi-Display Inductorless LED Driver with 32 Exponential Dimming Steps in micro SMD

$99.00(USD)


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Technical documentation
Application notes (1)
Title Type Size (KB) Date
PDF 8351 30 Apr 2013
More literature (1)
Title Type Size (KB) Date
PDF 38 02 Jan 2019

TI Devices (1)

Part Number Name Product Family
LM2756  Multi-display inductorless LED driver with 32 exponential dimming steps in micro SMD  LED drivers 

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