參數(shù)資料
型號： LM3723IM5-4.63/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝： SOT-23, 5 PIN
文件頁數(shù)： 1/12頁
文件大小： 290K
代理商： LM3723IM5-4.63/NOPB
July 2007
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. Reset will be asserted for at least 100ms even
after V
CC rises above the reset 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 equipment. The LM3722/
LM3723/LM3724 are available in the 5-pin SOT23 package.
Features
■ Precise monitoring of 2.5V, 3.3V, and 5V supply voltages
■ Fully specified over temperature
Industrial: 40°C to +85°C
Extended: 40°C to +125°C
■ 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)
■ Guaranteed RESET Output valid for V
CC ≥ 1V
■ Low Supply Current, 6A typical
■ Power supply transient immunity
■ Compatible with MAX811/812 applications
Applications
■ Microprocessor Systems
■ Computers
■ Controllers
■ Intelligent Instruments
■ Portable/Battery-Powered Equipment
Typical Application Circuit
20014401
20014437
Connection Diagram
SOT23-5
20014402
*( ) are for LM3723
2007 National Semiconductor Corporation
200144
www.national.com
LM3722/LM3723/LM3724
5-Pin
Microprocessor
Reset
Circuits
相關(guān)PDF資料
PDF描述
LM3722IM5-4.63/NOPB 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
LM3723IM5X-4.63/NOPB 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
LM3723IM5-2.32/NOPB 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
LM3722EM5X-2.32/NOPB 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
LM3723I2.32MWC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM3724EM5-2.32 制造商:Texas Instruments 功能描述:RESET CIRCUIT SMD SOT23-5 3724
LM3724EM5-2.32/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(biāo)準(zhǔn)包裝:1 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復(fù)位:低有效 復(fù)位超時:標(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR
LM3724EM5-3.08 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, SOT23-5, 3724 制造商:National Semiconductor Corporation 功能描述:Supervisory Circuit,Temp.,LM3724EM5-3.08 制造商:Texas Instruments 功能描述:Supervisory Circuit,Temp.,LM3724EM5-3.08
LM3724EM5-3.08/NOPB 功能描述:監(jiān)控電路 5-PIN MICROPROCESSOR RESET CIRCUITS 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(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
LM3724EM5-4.63 制造商:Texas Instruments 功能描述:RESET CIRCUIT, SMD, SOT23-5, 3724 制造商:Texas Instruments 功能描述:RESET CIRCUIT, SMD, SOT23-5, 3724; Threshold Voltage:4.63V; No. of Supervisors / Monitors:1; Supply Voltage Min:1V; Supply Voltage Max:5.5V; Reset Type:Active-Low; Digital IC Case Style:SOT-23; No. of Pins:5; Supply Current:8A; ;RoHS Compliant: Yes 制造商:Texas Instruments 功能描述:Supervisory Circuit,Temp.,LM3724EM5-4.63
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