产品概述 

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 CXLE8120 演示板用来演示升压高效率驱动  全集成开关型变换器CXLE8120。此设计是在直流输入电压为 5V-32V 时，最大输出电压可达60V的  驱动；最大开关 5A，系统效率最高可到 90%以上；CXLE8120 采用60V高压工艺，内部集成高压功率 MOSFET 开关管，具有转换效率高，系统元件少，高，安全性高等。演示板可以演示CXLE8120 的若干特性，包括改变 RCS 阻值来实现对于系统控制，使用EN引脚进行系统的开关控制。The CXLE8120 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W/3W/5W LED units with excellent line and load regulation. The regulator is simple to use because it includes internal frequency compensation and a fixed-frequency oscillator so that it requires a minimum number of external components to work. The CXLE8120 could directly drive 16 Series 1W/3W LED units at VIN=24V . The PWM control circuit is able to adjust the duty ratio linearly from 0 to 90%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.

   产品特点 

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 1.Wide 5V to 32V Input Voltage Range
2.Maximum Boost Output Up to 60V
3.0.22V FB adjustable LED drive current
4.Directly drive 16 Series 1W/3W LED at VIN=24V
5.Fixed 180KHz Switching Frequency
6.Max. 5A Switching Current Capability
7.Up to 94% efficiency
8.Excellent line and load regulation
9.EN PIN TTL shutdown capability
10.Internal Optimize Power MOSFET
11.Built in Soft-Start Function
12.Built in Frequency Compensation
Built in rmal Shutdown Function
Built in Current Limit Function
Available in TO263-5L & TO220-5L package

   应用范围 

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LED Lighting
Boost constant current driver
TFT LED Backlighting

   技术规格书（产品PDF)  

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