升压率驱动LED集成开关型变换器高压功率MOSFET开关管

产品概述 返回TOP
CXLE8120 演示板用来演示升压率驱动 LED 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，大输出电压可达 60V 的 LED 驱动；
大开关电流 5A，系统转换可到 90%以上；CXLE8120 采用60V高压
制造工艺，内部集成高压功率 MOSFET 开关管，具有转换，系统元件少，
可靠性高，安全性高等优点。
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
恒流控制，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 返回TOP
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 Thermal Shutdown Function
Built in Current Limit Function
Available in TO263-5L & TO220-5L package
应用范围 返回TOP
LED Lighting
Boost constant current driver
TFT LED Backlighting