CXLE8190

CXLE8190是一个升压型DC/DC转换器,设计用于驱动外部可编程恒流的白色LED。该器件采用集成的38V功率MOSFET,可串联驱动多达10个白光led,为均匀亮度提供固有电流匹配。WLED的亮度调整很容易通过一个单线接口实现,共有32个亮度等级的LED调光。
CXLE8190具有多种保护电路,包括集成过电压保护(OVP)、软启动、逐周限流和热关机保护电路。CXLE8190具有1A电流限制。
•高效率升压DC/DC WLED偏置电源
•内部38V,0.5Ω功率MOSFET
•每个字符串最多10个串行白色LED
•开关电流限制:1A
•LED的单线接口32亮度级别
调光
•可编程OVP电压
•软启动功能
•通过LED串从车辆识别号到接地无泄漏
•热关机
•循环过电流保护

CXLE8190高效率升压型DC转换器WLED偏置电源驱动外部可编程恒流的白色LED单线接口32亮度级别38V功率MOSFET串联驱动多达10个白光led循环过电流保护

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1.产品概述       2.产品特点     GKu嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)GKu嘉泰姆

5.产品封装       6.电路原理图  GKu嘉泰姆

7.相关产品GKu嘉泰姆

   产品概述 返回TOPGKu嘉泰姆


The CXLE8190 is a step-up DC/DC converter designed for driving the white LEDs with an externally programmable constant current. This device features integrated, 38V power MOSFET that is capable of driving up to 10 white LEDs in series, providing inherent current matching for uniform brightness. WLED brightness adjustment is easily achieved via a single wire interface, totally 32 brightness levels of LED Dimming.The CXLE8190 features a variety of protection circuits, including integrated over-voltage protection (OVP), soft-start, cycle-by-cycle current limiting, and thermal shutdown protection circuitry.The CXLE8190 has 1A current limit. It is available in Green TDFN-2×2-8L package. It operates over an ambient temperature range of -40℃to +85℃.

   产品特点 返回TOPGKu嘉泰姆


• High-Efficiency Boost DC/DC WLED Bias SupplyGKu嘉泰姆
• Internal 38V, 0.5Ω Power MOSFETGKu嘉泰姆
• Up to 10 Serial White LEDs per StringGKu嘉泰姆
• Switch Current Limit: 1AGKu嘉泰姆
• Single Wire Interface 32 Brightness Levels for LEDGKu嘉泰姆
   DimmingGKu嘉泰姆
• Programmable OVP VoltageGKu嘉泰姆
• Soft-Start FunctionGKu嘉泰姆
• No Leakage from VIN to GND through LED StringGKu嘉泰姆
• Thermal ShutdownGKu嘉泰姆
• Cycle-by-Cycle Over-Current ProtectionGKu嘉泰姆
• -40℃ to +85℃ Operating Temperature RangeGKu嘉泰姆
• Available in Green TDFN-2×2-8L PackageGKu嘉泰姆

   应用范围 返回TOPGKu嘉泰姆


TFT LCD DisplaysGKu嘉泰姆
Smart PhonesGKu嘉泰姆
Portable Media PlayersGKu嘉泰姆
GPS/Personal Navigation DevicesGKu嘉泰姆

   技术规格书(产品PDF) 返回TOP GKu嘉泰姆


     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持GKu嘉泰姆

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◀ 上一篇:串联驱动10个LED的38V开放式LED保护升压boost转换器以1.2MHz固定开关频率开关电流限制1.1A脉宽调制亮度控制CXLE8189

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下一篇▶:CXLE8191多功能恒流LED驱动器高效的升压转换器结构驱动高达38V的输出10个LED串联2.7V至5.5V输入电压260毫安的总电流每串3个系列LED