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LX1993CDU

更新时间： 2024-11-21 04:02:35
品牌 Logo 应用领域
美高森美 - MICROSEMI 驱动器
页数 文件大小 规格书
12页 454K
描述
High Efficiency LED Driver

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中文翻译

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LX1993CDU 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：MSOP
包装说明：TSSOP,针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.82
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：R-PDSO-G8
JESD-609代码：e3长度：3 mm
湿度敏感等级：1复用显示功能：NO
功能数量：1区段数：1
端子数量：8最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, 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：1.1 mm
最大供电电压：6 V最小供电电压：1.6 V
标称供电电压：3 V表面贴装：YES
温度等级：COMMERCIAL端子面层：MATTE TIN
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
宽度：2.95 mmBase Number Matches：1

LX1993CDU 数据手册

 浏览型号LX1993CDU的Datasheet PDF文件第2页浏览型号LX1993CDU的Datasheet PDF文件第3页浏览型号LX1993CDU的Datasheet PDF文件第4页浏览型号LX1993CDU的Datasheet PDF文件第5页浏览型号LX1993CDU的Datasheet PDF文件第6页浏览型号LX1993CDU的Datasheet PDF文件第7页 
LX1993  
High Efficiency LED Driver  
I N T E G R A T E D P R O D U C T S  
P
RODUCTION  
KEY FEATURES  
DESCRIPTION  
ƒ > 80% Maximum Efficiency  
ƒ 70µA Typical Quiescent Supply  
Current  
ƒ Externally Programmable Peak  
Inductor Current Limit For  
Maximum Efficiency  
ƒ Logic Controlled Shutdown  
ƒ < 1µA Shutdown Current  
ƒ Dynamic Output Current  
Adjustment Via Analog  
Reference Or Direct PWM Input  
ƒ 8-Pin MSOP Package  
The LX1993 is a high efficiency  
step-up boost converter that features a  
psuedo-hysteretic pulse frequency  
modulation topology for driving  
white or color LEDs in backlight or  
guaranteed at 1.6V input.  
The LX1993 is capable of switching  
currents in excess of 300mA and the  
output current is readily programmed  
using one external current sense  
resistor in series with the LEDs. This  
frontlight systems.  
Designed for  
maximum efficiency, reduced board  
size, and minimal cost, the LX1993 is  
ideal for PDA and digital camera  
applications. The LX1993 features an  
internal N-Channel MOSFET and  
control circuitry that is optimized for  
portable system design applications.  
The LX1993 promotes improved  
performance in battery-operated  
systems by operating with a quiescent  
supply current 70µA (typical) and a  
shutdown current of less than 1µA.  
The input voltage range is from 1.6V  
to 6.0V thus allowing for a broad  
configuration provides a feedback  
signal to the FB pin thus maintaining  
constant output current regardless of  
varying LED forward voltage (VF).  
The LX1993 provides an additional  
feature for simple dynamic adjustment  
of the output current (i.e., up to 100%  
of the maximum programmed current).  
Designers can make this adjustment by  
generating an analog reference signal  
or a PWM signal applied directly to  
the ADJ pin and any PWM amplitude  
is readily accommodated via a single  
external resistor. The LX1993 is  
available in the 8-Pin MSOP and thus  
requires a very small PCB area.  
APPLICATIONS  
ƒ Pagers  
ƒ Wireless Phones  
ƒ PDAs  
ƒ Handheld Computers  
ƒ LED Driver  
ƒ Digital Camera Displays  
selection  
applications  
of  
battery  
and start-up  
voltage  
is  
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com  
PRODUCT HIGHLIGHT  
SW  
IN  
OUT  
SHDN  
ON OFF  
LX1993  
Li-Ion  
FB  
CS  
ADJ  
GND  
PACKAGE ORDER INFO  
Plastic MSOP  
8-Pin  
DU  
TA (°C)  
RoHS Compliant / Pb-free  
Transition DC: 0432  
0 to 70  
LX1993CDU  
Note: Available in Tape & Reel. Append the letters “TR” to the part  
number. (i.e. LX1993CDU-TR)  
Copyright © 2000  
Rev. 1.0b, 2005-03-03  
Microsemi  
Page 1  
Integrated Products Division  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
1234567...12

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