AGREE

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.

RT8498

18V, 具调光控制的多架构 LED 驱动器

RT8498
New

RT8498为支持3V~18V宽输入电压范围及输出电压可达18V的电流模式LED驱动器。内置350kHz操作频率，外部PWM电感和输出/输入电容的尺寸可最小化。藉由100mV电流感测控制达到高效率。LED调光控制可以经由模拟或PWM信号完成。RT8498提供内置软启动功能避免冲击电流和过热关机以防止设备过热。
RT8498采用SOT-23-6封装。

应用

  • GPS, 便携式DVD背光源
  • 展示灯和室内照明
  • IP摄像机

主要规格

RT8498
Status Active
Vin (min) (V) 3
Vin (max) (V) 18
Vout (max) (V) 18
LED Channels 1
Topology Boost;Buck;Buck-boost
SW Freq (typ) (kHz) 350
Vcs (typ) (mV) 100
Dimming Control Analog;PWM;PWM-to-Analog
Features Current Mode Control;Cycle-by-Cycle Current Limit;OVP
Package Type SOT-26

关键特性

  • 高电压:VIN可达18V, VOUT可达18V

  • 内建2A电源开关

  • 电流模式PWM控制

  • 350kHz固定开关频率

  • 模拟、PWM数字或PWM转换模拟与一个外部的电容

  • 内置软启动避免冲击电流

  • 欠压锁定

  • 内置过压保护以限制输出电压

  • 逐周期电流限制

  • 过热关机

Application Notes

与销售人员联系以获取更多信息