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參數(shù)資料
| 型號： | LM3722E2.32MDC |
| 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 |
| 文件大小： | 398K |
| 代理商： | LM3722E2.32MDC |
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
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LM3723I3.08 MWC
Full production
N/A
wafer jar
of
N/A
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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
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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)
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Guaranteed RESET# Output valid for VCC >= 1V
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Low Supply Current, 6A typical
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Power supply transient immunity
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Compatible with MAX811/812 applications
Applications
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Microprocessor Systems
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Computers
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Controllers
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Intelligent Instruments
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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 |
|---|---|
| LM3723E3.08MWC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| LM3723I2.32MDC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| LM3722E4.63MWC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| LM3724I2.32MWC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| LM3722E3.08MDC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM3722EM5-2.32 | 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD SOT23-5 3722 |
| LM3722EM5-2.32/NOPB | 功能描述:IC MPU SUPERVISR 2.32V SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:1 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時:標準傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
| LM3722EM5-3.08 | 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD SOT23-5 3722 |
| LM3722EM5-3.08/NOPB | 功能描述:IC MPU SUPERVISR 3.08V SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:1 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時:標準傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
| LM3722EM5-4.63 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD SOT23-5 3722 |
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