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MB3793-45

Features: • Precise detection of power voltage fall: ±2.5%• Detection voltage with hysteresis• Low power dispersion: ICC = 31 A (reference)• Internal dual-input watchdog timer• Watchdog-timer halt function (by inhibition pin)• Independently-set wacthdog and rese...

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MB3793-45: Features: • Precise detection of power voltage fall: ±2.5%• Detection voltage with hysteresis• Low power dispersion: ICC = 31 A (reference)• Internal dual-input watchdog time...

MB3793-45 Data Sheet

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Part Number:
MB3793-45
Supply Ability:
5000

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Upload time: 2024/11/27

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Product Details

Description



Features:

• Precise detection of power voltage fall: ±2.5%
• Detection voltage with hysteresis
• Low power dispersion: ICC = 31 A (reference)
• Internal dual-input watchdog timer
• Watchdog-timer halt function (by inhibition pin)
• Independently-set wacthdog and reset times


Pinout

Connection Diagram




Specifications

                                                                                                               (Ta = +25°C)
Parameter Symbol Conditions Rating Unit
Min. Max.
Power supply voltage* VCC - 0.3 +7 V
Input voltage CK1 VCK1 - 0.3 +7 V
CK2 VCK2 -
INH IINH -
Reset output current  RESET IOL - 10 +10 mA
IOH
Allowable loss PD Ta +85°C - 200 mW
Storage temperature Tstg - 55 +125 °C
*: The power supply voltage is based on the ground voltage (0 V).
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
                  temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.



Description

The MB3793-45 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 fall-safe function for various application systems.

The MB3793-45 has a mask option that can detect voltages of 4.9 to 2.4 V in 0.1-V steps.

The model number is MB3793-45 corresponding to the detected voltage. The model number and package code are as shown below.

Model No. Package code Detection voltage
MB3793-45 3793-7 4.5 V



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