Diodes Incorporated — Analog and discrete power solutions
SO 8

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SO-8

SO 8EP

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SO-8EP

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AL9910-5 (Chinese Version)

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Description

AL9910/A高电压脉冲宽度调制 (PWM) LED驱动器控制器,为 离线高亮度LED灯提供高效率的解决方案,整流线性电压由 85VAC到高达277VAC。AL9910以最高300kHz的开关频率驱动 外部MOSFET,而开关频率由单一电阻来设定。AL9910拓扑 打造了流过多颗LED的恒定电流,带来恒定光线输出。输出电 流通过一个外部电阻进行编程,并最终由选定的外部MOSFET 来决定,因而可驱动多颗低电流LED及数颗高电流LED。 
 
LED的亮度可利用AL9910的LD管脚做线性调光,或通过 PWM_D管脚进行PWM调光。PWM_D输入以0~100%的占空 比率工作,频率可达数 kHz。 
 
AL9910能抵受高达500V的输入电压, 使它可以非常灵活面对 标准主线电压的瞬变。AL9910可以SO-8 和温度增强 SO-8EP 封装供货。

Feature(s)

  • 效率>90% 
  • 通用整流85 到277VAC输入范围 
  • 输入电压高达500V 
  • 内部稳压器省掉启动电阻
  • 7.5V MOSFET驱动 – AL9910 
  • 10V MOSFET驱动 – AL9910A 
  • 更严格电流感测容测:5% AL9910-5 
  • 驱动兼备高及低电流LED的LED灯具 
  • 以线性及PWM调光提供LED亮度控制 
  • 内部温度保护 (OTP) 
  • 采用“绿色”模塑合成材料的SO-8和SO-8EP封装 (无溴和锑) ,具有无铅涂料/ 符合RoHS (注1)

Application(s)

  • LED离线灯具 
  • 高电压直流-直流LED驱动器 
  • 标志和装饰LED照明 
  • 平板显示屏的背灯 
  • 通用恒定电源
 

Specifications & Technical Documents

Product Parameters

Minimum Input AC Voltage (VAC) 85
Maximum Input AC Voltage (VAC) 277
Maximum DC VDD (VDC) 500
LED Current (mA) External MOSFET
Frequency (kHz) 300
Accuracy (%) 5 %
Efficiency (%) 90 %
Dimming PWM to DC
SupplyCurrent (mA) 0.5 mA
Temperature Range (°C) -40 to 85, -40 to 105 °C

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Recommended Soldering Techniques

TN1.pdf

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