LM2756TMEV

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.).

• 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