CXLE87156

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)

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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1.产品概述       2.产品特点     6gA嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)6gA嘉泰姆

5.产品封装       6.电路原理图  6gA嘉泰姆

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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.

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Primary side control eliminates the opto-coupler6gA嘉泰姆

PWM or Analog Dimming6gA嘉泰姆

Valley turn-on of the primary MOSFET to achieve low switching losses6gA嘉泰姆

0.3V primary current sense reference voltage leads to a lower sense resistance thus a lower conduction loss6gA嘉泰姆

Internal high current MOSFET driver: 1A  sourcing and 2A sinking6gA嘉泰姆

Low start up current: 15uA typical6gA嘉泰姆

Reliable short LED and Open LED protection6gA嘉泰姆

Power factor >0.90 with single-stage conversion.(Analog dimming only)6gA嘉泰姆

Compact package: SO86gA嘉泰姆

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     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!6gA嘉泰姆

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◀ 上一篇:CXLE8791三通道线性恒流驱动芯片DIM脚外接PWM调光输出四通道可单独65536级灰度调光OUT端口高压驱动输出电流外置可调单通道输出电流5mA~150mA工作电压5V~32V

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下一篇▶:CXLE8835ES高效率恒电流降压型直流转换器1.2A输出恒流输入电压6~36伏特Hysteretic PFM模式能提升效率至96%输出电流可通过不同阻值的外接电阻调整大小DIM脚连接PWM信号进行调光控制