LM3699 Datasheet (Texas Instruments) - High-Efficiency White LED Driver

LM3699, High-Efficiency White LED Driver

The LM3699 is a three-string, high-efficiency, PWMcontrolled power source for display backlight or keypad LEDs in smartphone handsets.

The highvoltage inductive boost converter with integrated 1-A, 40-V MOSFET provides the power for three series LED strings.

The boost output automatically adjusts to

LM3699 Features

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

* Boost Converter up to 90% Efficiency

* Four User-Selectable Full-Scale Current Settings (20.2 mA, 18.6 mA, 17.0 mA, 15.4 mA)

* Quick-Dimming Enable Terminal (ILOW)

* Simple PWM Duty C