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參數(shù)資料
| 型號(hào)： | MB3793 |
| 廠商： | Fujitsu Limited |
| 英文描述： | POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER |
| 中文描述： | 電源電壓監(jiān)測(cè)芯片，帶有看門狗定時(shí)器 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 192K |
| 代理商： | MB3793 |
1
DS04-27402-2E
FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP
POWER-VOLTAGE MONITORING
IC WITH WATCHDOG TIMER
MB3793-
42/30
DESCRIPTION
The MB3793 is an integrated circuit to monitor power voltage; it incorporates a watchdog
timer.
A reset signal is output when the power is cut or falls abruptly. When the power recovers
normally after resetting, a power-on reset signal is output to microprocessor units (MPUs).
An internal watchdog timer with two inputs for system operation diagnosis can provide a
fail-safe function for various application systems.
Two models with detection voltages of 4.2 and 3.0 V are available. There is also a mask
option that can detect voltages of 4.9 to 3.0 V in 0.1-V steps.
The model numbers are MB3793-42 or -30 corresponding to the detected voltage. The
model number and package code are as shown below.
FEATURES
Precise detection of power voltage fall:
±
2.5%
Detection voltage with hysteresis
Low power dispersion: ICC = 27
μ
A (reference)
Internal dual-input watchdog timer
Watchdog-timer halt function (by inhibition pin)
Independently-set watchdog and reset times
Mask option for detection voltage (4.9 to 3.0 V, 0.1-V steps)
Model No.
Package code
Detection voltage
MB3793-42
3793-A
4.2 V
MB3793-30
3793-N
3.0 V
8-PIN PLASTIC DIP
(DIP-8P-M01)
This device contains circuitry to protect the inputs against
damage due to high static voltages or electric fields. However,
it is advised that normal precautions be taken to avoid
application of any voltage higher than maximum rated voltages
to this high impedance circuit.
8-PIN PLASTIC SOL
(FPT-8P-M02)
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| MB3793-27A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Power Voltage Monitoring IC with Watchdog Timer |
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| MB3793-27APF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Power Voltage Monitoring IC with Watchdog Timer |
| MB3793-27APF-G-JN-6E1 | 制造商:Fujitsu 功能描述:L 3.5V to 16V 2.7V VvZbg/p[IZbg 8SOP Tube |
| MB3793-27APFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Power Voltage Monitoring IC with Watchdog Timer |
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