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參數(shù)資料
| 型號： | LM3724I2.32MDC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| 封裝： | DIE |
| 文件頁數(shù)： | 7/24頁 |
| 文件大?。?/td> | 398K |
| 代理商： | LM3724I2.32MDC |
National P/N LM3723 - 5-Pin Microprocessor Reset Circuits
LM3723E4.63 MWC
Full production
N/A
wafer jar
of
N/A
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LM3723I2.32 MWC
Full production
N/A
wafer jar
of
N/A
-
LM3723I3.08 MWC
Full production
N/A
wafer jar
of
N/A
-
LM3723I4.63 MWC
Full production
N/A
wafer jar
of
N/A
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General Description
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.
The LM3722/LM3723/LM3724 asserts a reset signal whenever 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.
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 Semiconductor for details.
With a low supply current of only 6A, the LM3722/LM3723/LM3724 are ideal for use in portable equipment.
The LM3722/LM3723/LM3724 are available in the 5-pin SOT23 package.
Features
q
Precise monitoring of 2.5V, 3.3V, and 5V supply voltages
q
Fully specified over temperature Industrial: -40°C to +85°C Extended: -40°C to +125°C
q
100 ms minimum Power-On Reset pulse width, 190 ms typical: Active-Low RESET# Output (LM3722)
Active-High RESET Output (LM3723) Active-Low RESET# Open Drain Output (LM3724)
q
Guaranteed RESET# Output valid for VCC >= 1V
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Low Supply Current, 6A typical
q
Power supply transient immunity
q
Compatible with MAX811/812 applications
Applications
q
Microprocessor Systems
q
Computers
q
Controllers
q
Intelligent Instruments
q
Portable/Battery-Powered Equipment
[Information as of 5-Aug-2002]
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM3723.html (3 of 4) [09-Aug-2002 2:21:49 PM]
相關PDF資料 |
PDF描述 |
|---|---|
| LM3722I2.32MDC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| LM3723I3.08MWC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| LM3723E4.63MDC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| LM3724E3.08MDC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| LM3724E4.63MDC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM3724IM5-2.32 | 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD 3724 SOT-23-5 制造商:Texas Instruments 功能描述:RESET CIRCUIT, SMD, 3724, SOT-23-5 |
| LM3724IM5-2.32 | 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD 3724 SOT-23-5 |
| LM3724IM5-2.32/NOPB | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| LM3724IM5232NOPB | 制造商:NATIONAL 功能描述:2 partial reels |
| LM3724IM5-3.08 | 制造商:Texas Instruments 功能描述:Processor Supervisor 3.08V 2.5V/3.3V/5V 5-Pin SOT-23 T/R 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD 3724 SOT-23-5 制造商:Texas Instruments 功能描述:RESET CIRCUIT, SMD, 3724, SOT-23-5 |
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