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

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)

Datasheet

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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 (V_AC)	85
Maximum Input AC Voltage (V_AC)	277
Maximum DC VDD (V_DC)	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

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products