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MB3771PF-G-BND-JNE1 PDF预览

MB3771PF-G-BND-JNE1

更新时间: 2024-11-09 12:27:47
品牌 Logo 应用领域
富士通 - FUJITSU 监控
页数 文件大小 规格书
21页 196K
描述
ASSP For power supply applications BIPOLAR Power Supply Monitor

MB3771PF-G-BND-JNE1 数据手册

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FUJITSU SEMICONDUCTOR  
DATA SHEET  
DS04-27400-9E  
ASSP For power supply applications  
BIPOLAR  
Power Supply Monitor  
MB3771  
DESCRIPTION  
The Fujitsu MB3771 is designed to monitor the voltage level of one or two power supplies (+5 V and an arbitrary  
voltage) in a microprocessor circuit, memory board in large-size computer, for example.  
If the circuit’s power supply deviates more than a specified amount, then the MB3771 generates a reset signal to  
the microprocessor. Thus, the computer data is protected from accidental erasure.  
Using the MB3771 requires few external components. To monitor only a +5 V supply, the MB3771 requires the  
connection of one external capacitor. The level of an arbitrary detection voltage is determined by two external  
resistors. The MB3771 is available in an 8-pin Dual In-Line, Single In-Line Package or space saving Flat Package.  
FEATURES  
• Precision voltage detection (VSA = 4.2 V ± 2.5 %)  
• User selectable threshold level with hysterisis (VSB = 1.23 V ± 1.5 %)  
• Monitors the voltage of one or two power supplies (5 V and an arbitrary voltage, >1.23 V)  
• Usable as over voltage detector  
• Low voltage output for reset signal (VCC = 0.8 V Typ)  
• Minimal number of external components (one capacitor Min)  
• Low power dissipation (ICC = 0.35 mA Typ, VCC = 5 V)  
• Detection threshold voltage has hysteresis function  
• Reference voltage is connectable.  
PACKAGES  
8-pin plastic DIP  
8-pin plastic SIP  
8-pin plastic SOP  
(DIP-8P-M01)  
(SIP-8P-M03)  
(FPT-8P-M01)  

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