目录

1.产品概述       2.产品特点     FHo嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）FHo嘉泰姆

5.产品封装       6.电路原理图  FHo嘉泰姆

7.相关产品FHo嘉泰姆

   产品概述 返回TOPFHo嘉泰姆

With a 40V rated integrated switch FET, the CXLE8189 is a boost converter that drives up to 10 LEDs in series. The boost converter runs at a 1.2MHz fixed switching frequency with 1.1A switch current limit, and allows for the use of a high brightness LED in general lighting.The default white LED current is set with the external sensor resistor R_SET, and the feedback voltage is regulated to 200mV, as shown in the typical application. During the operation, the LED current can be controlled using PWM signal through the CTRL pin, the pulse width modulation (PWM) signal determines the feedback reference voltage. In PWM mode, the CXLE8189 does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the CXLE8189 to prevent the output voltage from exceeding the IC’s absolute maximum voltage ratings during open LED conditions.The CXLE8189 is available in Green TDFN-2×2-6L and TSOT-23-6 packages. It operates over an ambient temperature range of -40℃ to +85℃.

   产品特点 返回TOPFHo嘉泰姆

• Input Voltage Range: 3V to 20VFHo嘉泰姆
• 38V Open LED Protection for 10 LEDsFHo嘉泰姆
• 200mV Reference VoltageFHo嘉泰姆
• 500kΩ Pull-Low Resistor on CTRL PinFHo嘉泰姆
• 1.1A Switch FET with 1.2MHz Switching FrequencyFHo嘉泰姆
• PWM Brightness ControlFHo嘉泰姆
• 1kHz to 100kHz PWM Dimming Frequency RangeFHo嘉泰姆
• Soft-Start FunctionFHo嘉泰姆
• Up to 90% EfficiencyFHo嘉泰姆
• -40℃ to +85℃ Operating Temperature RangeFHo嘉泰姆
• Available in Green TDFN-2×2-6L and TSOT-23-6FHo嘉泰姆
   PackagesFHo嘉泰姆

   应用范围 返回TOPFHo嘉泰姆

High Brightness LED LightingFHo嘉泰姆
White LED Backlighting for Media Form Factor DisplayFHo嘉泰姆

   技术规格书（产品PDF) 返回TOP FHo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！FHo嘉泰姆

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产品封装图 返回TOPFHo嘉泰姆

FHo嘉泰姆

电路原理图 返回TOPFHo嘉泰姆

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