AN2809 6行/ 30 mA的升压转换器的LED背光液晶面板的驱动程序

AN2809 6行/ 30 mA的升压转换器的LED背光液晶面板的驱动程序

AN2809
Application note
6-row / 30-mA LED driver with boost converter
for the backlight of LCD panels

Introduction
The LED7706 consists of a high-efficiency monolithic boost converter and six controlled
current generators (rows) specifically designed to supply the LED arrays used in the
backlights of LCD panels. The device can manage an output voltage of up to 36 V (ten white
LEDs per row).
The generators can be externally-programmed to sink up to 30 mA and can be dimmed via
a PWM signal