LM2756 Overview
The LM2756 is a highly integrated, switchedcapacitor, 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 LED driver current sinks are split into three independently controlled groups.
LM2756 Key Features
- 2 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
- Up to 90% Efficiency
- Total Solution Size < 21mm2
- Low Profile 20 Bump DSBGA Package
- 0.4% Accurate Current Matching
- Internal Soft-Start Limits Inrush Current
LM2756 Applications
- Dual Display LCD Backlighting for Portable Applications
