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      深圳市利盛達科技有限公司 利盛達科技讓電源設計更便捷可靠|聯系電話:13928434054
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      TP3919,8顆LED高效恒流驅動

      TP3919】8顆LED高效恒流驅動 下載TP3919規格書

      • 將TP3919添加至收藏夾 用郵件咨詢TP3919的相關信息 就TP3919 QQ咨詢,也可電話至139 2843 4054。

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      TP3919 詳細介紹
      相關商品: TP3984 MP3302 G5125 YB1517 VIC2513

      General Description
      The TP3919 is a 1.2MHz PWM boost switching regulator designed for constant-current white LED driver applications. The TP3919 can drive a string of up to 8 white LEDs from a 3.3V in series, ensuring uniform brightness and eliminating several ballast resistors. The TP3919 implements a constant frequency 1.2MHz PWM control scheme.The high frequency PWM operational so saves board space by reducing external component sizes.To improve efficiency, the feedback voltage is set to 200mV, which  reduces  the  power  dissipation  in the current setting resistor.
      Highly integration and internal compensation network minimizes as 3 external component counts. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency.

      Features
      *  Built-in  Schottky  Diode
      * High Efficiency: 86%
      * 1.2MHz Fixed-Frequency PWM Operation
      * Maximum Output Voltage up to 28V
      * Operating Range : 2.7V to 16V
      * Shutdown Supply Current:<1uA .
      * Available in SOT23-6 Package .
      * Built-in Over Voltage Protec. tion
      * Minimize the External Component
      * RoHS Compliant and 100% Lead (Pb)-Free

      Applications
      * WLED Backlight driver
      * OLED Backlight driver
      * PDA / DSC
      * Camera Flash WLED driver
       


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