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參數(shù)資料
| 型號： | LM3723I4.63MDC |
| 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)： | 1/24頁 |
| 文件大?。?/td> | 398K |
| 代理商： | LM3723I4.63MDC |
LM3722/LM3723/LM3724
5-Pin Microprocessor Reset Circuits
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 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 V
CC 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 Semicon-
ductor for details.
With
a
low
supply
current
of
only
6A,
the
LM3722/LM3723/LM3724 are ideal for use in portable equip-
ment. The LM3722/LM3723/LM3724 are available in the
5-pin SOT23 package.
Features
n
Precise monitoring of 2.5V, 3.3V, and 5V supply
voltages
n
Fully specified over temperature
Industrial: 40C to +85C
Extended: 40C to +125C
n
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)
n
Guaranteed RESET Output valid for V
CC ≥ 1V
n
Low Supply Current, 6A typical
n
Power supply transient immunity
n
Compatible with MAX811/812 applications
Applications
n
Microprocessor Systems
n
Computers
n
Controllers
n
Intelligent Instruments
n
Portable/Battery-Powered Equipment
Typical Application Circuit
20014401
20014437
Connection Diagram
SOT23-5
20014402
*( ) are for LM3723
June 2001
LM3722/LM3723/LM3724
5-Pin
Microprocessor
Reset
Circuits
2001 National Semiconductor Corporation
DS200144
www.national.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM3723IM5-2.32 | 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD 3723 SOT-23-5 |
| LM3723IM5-2.32 | 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD 3723 SOT-23-5 |
| LM3723IM5-2.32/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 |
| LM3723IM5-3.08 | 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD 3723 SOT-23-5 |
| LM3723IM5-3.08 | 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD 3723 SOT-23-5 |
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