CXLE8102是一种PWM控制buck转换器，旨在为驱动大功率led提供一种简单、高效的解决方案。通过0.25V参考电压反馈控制，以最小化功耗，外部电阻器根据驱动各种类型LED所需的电流设置。CXLE8102包括一个大电流P-MOSFET，以实现高效率和优异的瞬态特性。该PWM控制电路能够将占空比从0线性变化到100%。其他功能包括用户可访问的EN/DIM管脚，用于启用led和PWM调光、热关机、逐周期电流限制和过电流保护。
-
[ CXLE8102 ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）
一.产品概述
The CXLE8102 is a PWM control buck converter designed to provide a simple, high efficiency solution for driving high power LEDs. With a 0.25V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. The CXLE8102 includes a high current P-MOSFET to realize high efficiency and excellent transient characteristics. The PWM control circuit is able to change the duty ratio linearly from 0 up to 100%. Other features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs, thermal shutdown, cycle-by cycle current limit and over current protection.
二.产品特点
˙Wide Supply Voltage Operating Range: 3.6 to 28V
˙Built-in P-MOSFET for 3A Loading Capability
˙Precision Feedback Reference Voltage: 0.25V (2%)
˙Low Current Consumption: 4mA
˙Internal Fixed Oscillator Frequency: 320KHz (Typ.)
˙Internal Soft-Start Function (SS)
˙Over Current Protection
˙Package: SOP-8L
三.应用范围
Ø Chargers
Ø LCD Displays
Ø Digital Cameras
Ø Handheld Devices
Ø Portable Products
四.技术规格书（产品PDF)
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！
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
| WHITE LED DRIVERS | ||||||||||
| Part No. | VIN | VOUT | # of | Driver | Feedback | Switching | Notes | Package | Status | |
| (Min) | (Max) | (Max) | LEDs | Current | Voltage | Frequency | ||||
| (V) | (V) | (Max) | (A) | (V) | (kHz) | |||||
| CXLE8101 | 3.6 | 28 | 25 | 6 | 2 | 0.25 | 320 | 100% Duty | SOP8 | MP |
| CXLE8102 | 3.6 | 28 | 25 | 6 | 3 | 0.25 | 320 | 100% Duty | SOP8 | MP |
| CXLE8103 | 7 | 26 | 26 | 7 | 0.7 | NA | NA | SOT23-5 | MP | |
| CXLE8104 | 7 | 26 | 26 | 7 | 1 | NA | NA | SOT89-5 | MP | |
| CXLE8105 | 2.7 | 5.5 | 20 | 5 | 0.75 | 0.25 | 1200 | SOT23-6 | MP | |
| CXLE8106 | 8.5 | 100 | VIN*0.9 | VIN*0.9 | ILED | 0.25 | Auto | Buck | SOP8 | MP |
