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LM3405AXMY PDF预览

LM3405AXMY

更新时间: 2024-01-21 05:37:01
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
20页 510K
描述
1.6MHz, 1A Constant Current Buck LED Driver with Internal Compensation in Tiny SOT23 and eMSOP Package

LM3405AXMY 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSOP
包装说明:VSSOP,针数:6
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.16
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:15 V
最小输入电压:2.51 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G6JESD-609代码:e3
长度:2.97 mm湿度敏感等级:1
功能数量:1端子数量:6
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:2.8 A最大输出电压:13.5 V
最小输出电压:0.2 V封装主体材料:PLASTIC/EPOXY
封装代码:VSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:1600 kHz温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.95 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:1.65 mm
Base Number Matches:1

LM3405AXMY 数据手册

 浏览型号LM3405AXMY的Datasheet PDF文件第2页浏览型号LM3405AXMY的Datasheet PDF文件第3页浏览型号LM3405AXMY的Datasheet PDF文件第4页浏览型号LM3405AXMY的Datasheet PDF文件第5页浏览型号LM3405AXMY的Datasheet PDF文件第6页浏览型号LM3405AXMY的Datasheet PDF文件第7页 
October 23, 2008  
LM3405A  
1.6MHz, 1A Constant Current Buck LED Driver with Internal  
Compensation in Tiny SOT23 and eMSOP Package  
General Description  
Features  
The LM3405A is a 1A constant current buck LED driver de-  
signed to provide a simple, high efficiency solution for driving  
high power LEDs. With a 0.205V reference voltage feedback  
control to minimize power dissipation, an external resistor  
sets the current as needed for driving various types of LEDs.  
Switching frequency is internally set to 1.6MHz, allowing  
small surface mount inductors and capacitors to be used. The  
LM3405A utilizes current-mode control and internal compen-  
sation offering ease of use and predictable, high performance  
regulation over a wide range of operating conditions. With a  
maximum input voltage of 22V, it can drive up to 5 High-  
Brightness LEDs in series at 1A forward current, with the  
single LED forward voltage of approximately 3.7V. Additional  
features include user accessible EN/DIM pin for enabling and  
PWM dimming of LEDs, thermal shutdown, cycle-by-cycle  
current limit and over-current protection.  
VIN operating range of 3V to 22V  
Drives up to 5 High-Brightness LEDs in series at 1A  
Thin SOT23-6 package & eMSOP8 with exposed DAP  
1.6MHz switching frequency  
EN/DIM input for enabling and PWM dimming of LEDs  
300mNMOS switch  
40nA shutdown current at VIN = 5V  
Internally compensated current-mode control  
Cycle-by-cycle current limit  
Input voltage UVLO  
Over-current protection  
Thermal shutdown  
Applications  
LED Driver  
Constant Current Source  
Industrial Lighting  
LED Flashlights  
LED Lightbulbs  
Typical Application Circuit  
Efficiency vs LED Current (VIN = 12V)  
30015201  
30015273  
© 2008 National Semiconductor Corporation  
300152  
www.national.com  

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