Diodes Incorporated — Analog and discrete power solutions
SOT25

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT25

MSOP-8EP

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

SOT25

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT25

MSOP-8EP

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

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AL8807A (Chinese Version) (NRND)

NRND = Not Recommended for New Design

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Description

AL8807A 是一款降压直流/直流转换器,能够通过恒定电流驱动 LED 该器件可以凭藉一个 6V至 36V的电压源来驱动多达 9颗白色高亮度串 联LED。 
 
AL8807A 拥有扩展了的 CTRL 引脚电压范围,且能够将模拟调光范围 伸延至高于 10:1。改善了的模拟调光范围使该器件适用于多种要求宽 模拟调光范围的照明应用。 
 
AL8807A 以高达 1MHz 的频率开关,并通过控制上升时间和下降时间 来减少 EMI。这让设计可以采用小巧的外部零件,从而把所需的印刷 电路版面积减到最小。 
 
AL8807A 的最大输出电流可通过连接 VIN 引脚和 SET输入引脚的外部 电阻器来设定。 
 
该器件集成了过温保护,因此在故障发生时会自动关闭,且仅在结温下 降到某个程度时才会重新启动。 
 

Feature(s)

  • LED 驱动电流高达1A/1.3A 
  • 优于5%的精度 
  • 高效率,最高可达96% 
  • 最佳控制开关速度 
  • 工作输入电压由6V至36V 
  • 为调光控制 (>10:1) 而设的宽模拟输入范围 
  • 预置保护功能 
  • LED开路保护 
  • LED串短路保护 
  • 过温保护 
  • MSOP-8EP和SOT25封装: 采用“绿色” 模塑合成材料 (无溴和锑)
  • 及无铅涂料,符合RoHS标准 
  • 完全无铅及全面符合 RoHS指令 (注 1和 2) 
  • 器件不含卤素及锑。“绿色” 器件 (注 3) 
 

Application(s)

  • 通用照明灯 
  • 12V功率 LED灯 
  • 宽模拟调光范围 LED灯 
 

Specifications & Technical Documents

Product Parameters

AEC-Q100 Grade No
Dimming (Analog) Yes
Dimming (PWM) No
Efficiency (%) 97
LED Current Accuracy (%) 5
MaximumInput Voltage (V) 36
Maximum LED Current (A) 1.3
Maximum Output Voltage (V) 36
MinimumInput Voltage (V) 6
OperatingTemperatureRange  (°C) -40 to 125
AEC Qualified No
Sense/Feedback Voltage (mV) 100
Switching Frequency Maximum (kHz) 1000
Topologies (Boost) No
Topologies (Buck-Boost) No
Topologies (Buck) Yes

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