使用 RT6033A 4 通道 LED 驱动器进行显示屏背光应用的典型应用。 RT6033A 是一款具有动态净空控制 (DHC) 功能的 4 通道恒流灌 LED 驱动器。 RT6033A可以提供良好的电流匹配能力,可调节VSET来选择MOS/BTJ上合适的压差电压。除此之外,DHC将提供稳定的VFB调光,因此即使在调光过程中
电压纹波也保持在很小的水平
说明
-
Typical Application Using RT6033A 4-CH LED Driver for Display Backlight Applications. The RT6033A is a 4-CH constant current sink LED drivers with Dynamic Headroom Control (DHC) function. RT6033A can provide well current matching ability, adjustable VSET to choose the suitable dropout voltage across the MOS/BTJ. Beside that, DHC will provide the stable VFB dimming, thus voltage ripple is kept as small even during the dimming