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LM3722I2.32MDC PDF预览

LM3722I2.32MDC

更新时间: 2024-09-18 19:34:39
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 214K
描述
IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, DIE, Power Management Circuit

LM3722I2.32MDC 技术参数

生命周期:Obsolete包装说明:DIE, DIE OR CHIP
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.69
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:X-XUUC-N信道数量:1
功能数量:1最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:UNSPECIFIED
封装代码:DIE封装等效代码:DIE OR CHIP
封装形状:UNSPECIFIED封装形式:UNCASED CHIP
电源:2.5 V认证状态:Not Qualified
子类别:Power Management Circuits最大供电电流 (Isup):0.01 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):1 V
标称供电电压 (Vsup):2.5 V表面贴装:YES
温度等级:INDUSTRIAL端子形式:NO LEAD
端子位置:UPPER阈值电压标称:+2.32V
Base Number Matches:1

LM3722I2.32MDC 数据手册

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June 2001  
LM3722/LM3723/LM3724  
5-Pin Microprocessor Reset Circuits  
General Description  
Features  
n Precise monitoring of 2.5V, 3.3V, and 5V supply  
voltages  
The LM3722/LM3723/LM3724 microprocessor supervisory  
circuits monitor the power supplies in microprocessor and  
digital systems. They provide a reset to the microprocessor  
during power-up, power-down, brown-out conditions, and  
manual reset.  
n Fully specified over temperature  
Industrial: −40˚C to +85˚C  
Extended: −40˚C to +125˚C  
n 100 ms minimum Power-On Reset pulse width, 190 ms  
typical:  
The LM3722/LM3723/LM3724 asserts a reset signal when-  
ever the supply decreases below the factory-programmed  
reset threshold for at least 100 ms. The reset signal remains  
asserted for 190 ms after VCC rises above the threshold.  
Active-Low RESET Output (LM3722)  
Active-High RESET Output (LM3723)  
Active-Low RESET Open Drain Output (LM3724)  
n Guaranteed RESET Output valid for VCC 1V  
n Low Supply Current, 6µA typical  
n Power supply transient immunity  
n Compatible with MAX811/812 applications  
The LM3722 has an active-low RESET push-pull output. The  
LM3723 has an active-high RESET push-pull output. The  
LM3724 has an active-low open-drain RESET output.  
Three standard reset voltage options are available, suitable  
for monitoring 5V, 3.3V, and 2.5V supply voltages. Additional  
reset voltages are also available; contact National Semicon-  
ductor for details.  
Applications  
n Microprocessor Systems  
n Computers  
n Controllers  
n Intelligent Instruments  
n Portable/Battery-Powered Equipment  
With  
a
low supply current of only 6µA, the  
LM3722/LM3723/LM3724 are ideal for use in portable equip-  
ment. The LM3722/LM3723/LM3724 are available in the  
5-pin SOT23 package.  
Typical Application Circuit  
20014401  
20014437  
Connection Diagram  
SOT23-5  
20014402  
*
( ) are for LM3723  
© 2001 National Semiconductor Corporation  
DS200144  
www.national.com  

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