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。
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[ CXLE87157 ]"
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7.相关产品
产品概述 返回TOP
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
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
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 |
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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 |
|
