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
[ CXLE87155 ]
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产品概述 返回TOP
产品特点 返回TOP
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
LED lighting
Down light
Tube lamp
PAR lamp
Bulb lamp
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电路原理图 返回TOP
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Lighting Driver and Controller ICs |
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Part Number |
Function |
Package |
Dimming |
VIN Range |
PFC |
Isolation |
OptoCouple |
QR Mode |
|
Single Stage Buck PFC Regulato |
SO8 |
NO |
AC LINE |
Yes |
NO |
NO |
Yes |
|
|
Single stage BuckBoost PFC co |
SO8 |
NO |
AC LINE |
Yes |
NO |
NO |
Yes |
|
|
Single Stage Flyback PFC Contr |
SO8 |
PWM/Analog |
AC LINE |
Yes |
Yes |
NO |
Yes |
|
|
Single Stage Flyback PFC Contr |
SO8 |
NO |
AC LINE |
Yes |
Yes |
NO |
Yes |
|
下一篇▶: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
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