CXLE87155单级降压PFC控制器用于LED照明应用准谐振模式驱动Buck-Boost变换器以获得更高的效率功率因数大于0.90单级转换低开关损耗的MOSFET谷通ZCS检测和偏置电流可选

CXLE87155是一款单级降压PFC控制器，主要用于LED照明应用。它以准谐振模式驱动Buck-Boost变换器以获得更高的效率。它使Buck-Boost变换器保持恒定的准时工作，以获得高功率因数。
实现低开关损耗的MOSFET谷通
辅助绕组，用于ZCS检测和偏置电流可选
0.3V电流感测参考电压导致感测电阻降低，从而降低传导损耗
内部大电流MOSFET驱动器：1A源极和2A陷极
低启动电流：典型15μA
可靠的短LED和开放式LED保护
功率因数>0.90，单级转换

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）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXLE87155 is a single stage Buck-Boost PFC controller targeting at LED lighting applications. It drives the Buck-Boost converter in the quasi-resonant mode to achieve higher efficiency. It keeps the Buck-Boost converter in constant on time operation to achieve high power factor.

   产品特点 返回TOP

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Valley turn-on of the MOSFET to achieve low switching losses

Aux-winding for ZCS detection and bias current optional

0.3V current sense reference voltage leads to a lower sense resistance thus a lower conduction loss

Internal high current MOSFET driver: 1A  sourcing and 2A sinking

Low start up current: 15μA typical

Reliable short LED and Open LED protection

Power factor >0.90 with single-stage conversion

Compact package: SO8

   应用范围 返回TOP

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LED lighting

Down light

Tube lamp

PAR lamp

Bulb lamp

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

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Lighting Driver and Controller ICs
Part Number	Function	Package	Dimming	VIN Range	PFC	Isolation	OptoCouple	QR Mode
CXLE87154	Single Stage Buck PFC Regulato	SO8	NO	AC LINE	Yes	NO	NO	Yes
CXLE87155	Single stage BuckBoost PFC co	SO8	NO	AC LINE	Yes	NO	NO	Yes
CXLE87156	Single Stage Flyback PFC Contr	SO8	PWM/Analog	AC LINE	Yes	Yes	NO	Yes
CXLE87157	Single Stage Flyback PFC Contr	SO8	NO	AC LINE	Yes	Yes	NO	Yes