Cxle86177 is a high precision step-down LED constant current control chip with source power factor correction, which is suitable for the non isolated step-down LED constant current power supply with 85vac-265vac full range input voltage. Cxle86177 integrated active power factor
Digital correction circuit can achieve high power factor and low total harmonic distortion. Due to the critical continuous mode of inductor current, the power MOS transistor is in the zero current on state, the switching loss is reduced, and the utilization rate of inductor is also reduced
Higher. Cxle86177 adopts floating structure to sample inductance current in full period, which can realize high precision output constant current control, and achieve excellent line voltage regulation rate and load regulation rate. Cxle86177 has multiple protection functions to enhance system reliability, including LED open circuit protection, led short circuit protection, chip power supply undervoltage protection, current sampling resistance open circuit protection and cycle by cycle current limiting
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[ CXLE86177 ]"
目录
7.相关产品
产品概述 返回TOP
CXLE86177是一款带有源功率因数校正的高精度降压型LED 恒流控制芯片，适用于85Vac-265Vac 全范围输入电压的非隔离降压式LED 恒流电源。CXLE86177 集成有源功率因数校正电路，可以实现很高的功率因数和很低的总谐波失真。由于工作在电感电流临界连续模式，功率MOS管处于零电流开通状态，开关损耗得以减小，同时电感的利用率也较高。CXLE86177采用浮地构架，对电感电流进行全周期采样，可实现高精度输出恒流控制，并达到优异的线电压调整率和负载调整率。CXLE86177 具有多重保护功能以加强系统可靠性，包括LED 开路保护、LED 短路保护、芯片供电欠压保护、电流采样电阻开路保护和逐周期限流等。所有的保护状态都具
产品特点 返回TOP
有源功率因数校正，高PF 值，低THD
高达95%的系统效率
LED 输出电流精度
优异的线电压调整率和负载调整率
电感电流临界连续模式
超低(10uA) 启动电流
LED 开路/短路保护
电流采样电阻开路保护
逐周期原边电流限流
芯片供电过压/欠压保护
自动重启功能
SOP-8 封装
应用范围 返回TOP
GU10/E27 LED 球泡灯、射灯
LED PAR30、PAR38 灯
LED 日光灯
其它LED 照明
技术规格书（产品PDF) 返回TOP
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！
产品封装图 返回TOP
电路原理图 返回TOP
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AC/DC LED照明单级PFC恒流LED驱动器Single-stage PFC LED constant current drive |
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|
PartNumber |
Function |
Isol ation |
power tube |
OTP |
OCP |
OVP |
PF |
Work mode |
Constnt current |
Package |
note |
|
单级PFC PSR Flyback |
是 |
MOS |
有 |
有 |
有 |
0.9 |
QR |
是 |
SOP8 |
60W |
|
|
单级PFC PSR Flyback |
是 |
MOS |
有 |
有 |
有 |
0.9 |
QR |
是 |
SOT23-6 |
30W |
|
|
单级PFC PSR Flyback |
是 |
内置MOS |
有 |
有 |
有 |
0.9 |
QR |
是 |
SOP8 |
10W |
|
|
单级PFC PSR Flyback |
是 |
内置MOS |
有 |
有 |
有 |
0.9 |
QR |
是 |
DIP8 |
20W |
|
|
单级PFC BUCK |
否 |
MOS |
有 |
有 |
有 |
0.9 |
QR |
是 |
SOT23-6 |
30W |
|
|
单级浮地 PFC BUCK |
否 |
MOS |
有 |
有 |
有 |
0.9 |
QR |
是 |
SOT23-6 |
30W |
|
|
单级浮地 PFC BUCK |
否 |
内置MOS |
有 |
有 |
有 |
0.9 |
QR |
是 |
SOP8 |
10W |
|
|
单级浮地 PFC BUCK |
否 |
内置MOS |
有 |
有 |
有 |
0.9 |
QR |
是 |
SOP8 |
20W |
|
