LM27964
Overview
The LM27964 is a charge-pump-based white-LED driver that is ideal for mobile phone display backlighting. The LM27964 can drive up to 6 LEDs in parallel along with multiple keypad LEDs, with a total output current up to 180mA.
- 87% Peak LED Drive Efficiency
- 0.2% Current Matching between Current Sinks
- Drives 6 LEDs with up to 30mA per LED in two distinct * * * * * *
- groups, for backlighting two displays (main LCD and sub LCD) Dedicated Keypad LED Driver with up to 80mA of drive current Independent Resistor-Programmable Current Settings I2C Compatible Brightness Control Interface Adaptive 1×- 3/2× Charge Pump Extended Li-Ion Input: 2.7V to 5.5V Small low profile industry standard leadless package, LLP 24 : (4mm x 4mm x 0.8mm) LM27964SQ-I LED PWM frequency = 10kHz, LM2796
