CXLE87157对LED照明应用的单级反激和PFC控制器功率因数大于0.90单级转换大电流MOSFET驱动器反激变换器保持恒定的定时工作以获得高功率因数

CXLE87157是一款针对LED照明应用的单级反激和PFC控制器。它是一种无需二次反馈电路的一次侧控制器，成本低，并以准谐振模式驱动反激变换器以获得更高的效率。它使反激变换器保持恒定的定时工作，以获得高功率因数。
一次侧控制消除光耦。
实现低开关损耗的一次MOSFET谷通
0.3V一次电流检测参考电压引线
以降低感测电阻，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 CXLE87157 is a single stage Flyback and PFC controller targeting at LED lighting applications. It is a primary side controller without applying any secondary feedback circuit for low cost, and drives the Flyback converter in the quasi-resonant mode to achieve higher efficiency. It keeps the Flyback converter in constant on time operation to achieve high power factor.

   产品特点 返回TOP

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Primary side control eliminates the opto-coupler.

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

0.3V primary 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: MSOP10 and SO8

   应用范围 返回TOP

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LED lighting

Down light

Tube lamp

PAR lamp

Bulb

   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