This website stores cookies on your computer. These cookies are used to collect information about how you interact with our website and allow us to remember you. We use this information in order to improve and customize your browsing experience and for analytics and metrics about our visitors both on this website and other media. To find out more about the cookies we use, see our Cookie Statement. If you decline, your information won’t be tracked when you visit this website. A single cookie will be used in your browser to remember your preference not to be tracked. Find out more here.
RT9379 是包含有 x1/x1.5/x2 升压电荷泵和 6 个低压差恒流源 LED 驱动器,可为多达 6 只 LED 提供稳定一致的电流供应,每个 LED 通道的电流最大可达 25mA。它因采用具有多种升压模式的电荷泵和低压差的电流调节器而能维持最高的转换效率,当需要调光时,可用普通 CPU 的 GPIO 端子生成 PWM 信号来对它进行调节以实现 LED 的亮度控制。RT9379 的采用 WQFN-16L 2x3 封装供货,小型的 1μF 电容可被用作泵电容与之配合工作,它为便携式应用提供了一个效率高、空间占用少的最佳背光源驱动解决方案。
在锂离子电池的全电压范围内平均效率可达 85%
驱动多达 6 只 WLED
每个通道输出电流最高达 25mA
使用 PWM 信号进行亮度调节
恒流源电压降可达 60mV
LED 电流精度:1%
各 LED 电流一致性:0.7%
电荷泵自动实施 x1/x1.5/x2 模式转换
输入噪声低,EMI 问题少
过压保护
上电/模式转换电流冲击保护
工作频率:1MHz
关机电流消耗:0.4μA
符合 RoHS 规范,不含卤素
订阅接收最新产品讯息 (请先登入)
.
Please check your email box and click validation url.