- 您现在的位置：买卖IC网 > PDF目录80284 > LM3724I4.63MDC (NATIONAL SEMICONDUCTOR CORP) 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC PDF资料下载
参数资料
| 型号： | LM3724I4.63MDC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| 封装： | DIE |
| 文件页数： | 1/24页 |
| 文件大小： | 398K |
| 代理商： | LM3724I4.63MDC |
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
相关PDF资料 |
PDF描述 |
|---|---|
| LQD25A48-5V0-3V3RE | 2-OUTPUT 87.5 W DC-DC REG PWR SUPPLY MODULE |
| LQD30A48-3V3-1V8A | 2-OUTPUT 76.5 W DC-DC REG PWR SUPPLY MODULE |
| LT4356HS-2 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| LES50A48-1V2R | 1-OUTPUT 60 W DC-DC REG PWR SUPPLY MODULE |
| LTC3765EMSE#PBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装: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 |
发布紧急采购，3分钟左右您将得到回复。