LM3633 Datasheet (Texas Instruments) - Complete Lighting Power

LM3633, Complete Lighting Power

The LM3633 11-bit LED driver provides highperformance backlight dimming for 1, 2, or 3 parallel high-voltage LED strings while delivering up to 90% efficiency.

The boost converter with integrated 1-A, 40-V MOSFET automatically adjusts to LED forward voltage to minimize headroom voltage and effective

LM3633 Features

* 1 Drives Three Parallel High-Voltage LED Strings for Display and Keypad Lighting

* High-Voltage Strings Capable of up to 40-V Output Voltage and up to 90% Efficiency

* Up to 30-mA per Current Sink (Both Backlight and Indicator)

* 11-Bit High-Voltage LED Dimming