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LM3880MF-1AC PDF预览

LM3880MF-1AC

更新时间: 2024-09-30 02:52:19
品牌 Logo 应用领域
美国国家半导体 - NSC /
页数 文件大小 规格书
12页 260K
描述
Power Sequencer

LM3880MF-1AC 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:SOT-23, 6 PINReach Compliance Code:not_compliant
HTS代码:8542.39.00.01风险等级:5.01
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:R-PDSO-G6
JESD-609代码:e0长度:2.92 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封装主体材料:PLASTIC/EPOXY
封装代码:LSSOP封装等效代码:TSOP6,.11,37
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
电源:3/5 V认证状态:Not Qualified
座面最大高度:1.22 mm子类别:Power Management Circuits
最大供电电流 (Isup):0.08 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.7 V标称供电电压 (Vsup):3.3 V
表面贴装:YES技术:CMOS
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:0.953 mm
端子位置:DUAL宽度:1.6 mm
Base Number Matches:1

LM3880MF-1AC 数据手册

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March 2007  
LM3880  
Power Sequencer  
General Description  
The LM3880 Power Sequencer offers the easiest method to  
control power up and power down of multiple power supplies  
(switchers or linear regulators). By staggering the startup se-  
quence, it is possible to avoid latch conditions or large in-rush  
currents that can affect the reliability of the system.  
Features  
Easiest method to sequence rails  
Power up and power down control  
Input voltage range of 2.7V to 5.5V  
Small footprint SOT23-6  
Low quiescent current of 25 µA  
Available in a SOT23-6 package, the Power Sequencer con-  
tains a precision enable pin and three open drain output flags.  
Upon enabling the LM3880 the three output flags will sequen-  
tially release, after individual time delays, permitting the con-  
nected power supplies to startup. The output flags will follow  
a reverse sequence during power down to avoid latch condi-  
tions.  
Standard timing options available  
Customization of timing and sequence available through  
factory programmability  
Applications  
Multiple supply sequencing  
Standard timing option of 30ms is available.  
Microprocessor / Microcontroller sequencing  
EPROM capability allows every delay and sequence to be  
fully adjustable. Contact National Semiconductor if a non-  
standard configuration is required.  
FPGA sequencing  
Typical Application Circuit  
20192601  
© 2007 National Semiconductor Corporation  
201926  
www.national.com  

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