Features: • Precise detection of power voltage fall: ±2.5%• Detection voltage with hysteresis• Low power dispersion: ICC = 31 mA (reference)• Internal dual-input watchdog timer• Watchdog-timer halt function (by inhibition pin)• Independently-set wacthdog and res...
MB3793-27A: Features: • Precise detection of power voltage fall: ±2.5%• Detection voltage with hysteresis• Low power dispersion: ICC = 31 mA (reference)• Internal dual-input watchdog tim...
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Parameter | Symbol | Condition | Rating | Unit | ||
Min. | Max. | |||||
Power supply voltage* | VCC | - | 0.3 | +7 | V | |
Input voltage* | CK1 | VCK1 | - | 0.3 | +7 | V |
CK2 | VCK2 | - | ||||
INH | IINH | - | ||||
Power dissipation | RESET | OL | - | 10 | +10 | mA |
IOH | ||||||
Operating temperature | PD | Ta +85°C | 30 | +85 | mW | |
Storage temperature | Tstg | - | 55 | +125 | °C |
The MB3793-27A is an integrated circuit to monitor power voltage; it incorporates a watchdog timer.
MB3793-27A 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 applicaiton systems.
The MB3793-27A has a mask option that can detect voltages of 4.9 to 2.4 V in 0.1-V steps.