LM27964 - White LED Driver System

Product Overview

National Semiconductor

Part number	LM27964
Manufacturer	National Semiconductor
File Size	368.51 KB
Description	White LED Driver System
Datasheet	LM27964 Datasheet
Additional preview pages of the LM27964 datasheet.

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 s.

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Published: Jan 12, 2009 |