CXLE87156单级反激和PFC控制器带PWM模拟调光的LED照明应用无需二次反馈电路的一次侧控制器准谐振模式驱动反激变换器以获得更高的效率功率因数大于0.90单级转换大电流MOSFET驱动器

CXLE87156是一款单级反激和PFC控制器，适用于带PWM/模拟调光的LED照明应用。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
脉宽调制或模拟调光
实现低开关损耗的一次MOSFET谷通
0.3V初级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：典型值15uA
可靠的短LED和开放式LED保护
功率因数>0.90，单级转换（仅模拟调光）

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 CXLE87156 is a single stage Flyback and PFC controller targeting at LED lighting applications with PWM/Analog dimming. 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

PWM or Analog Dimming

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: 15uA typical

Reliable short LED and Open LED protection

Power factor >0.90 with single-stage conversion.(Analog dimming only)

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