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 re...
MB3793-30A: Features: • Precise detection of power voltage fall: ± 2.5%• Detection voltage with hysteresis• Low power dispersion: ICC = 31 mA (reference)• Internal dual-input watchdog ti...
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Parameter |
Symbol |
Conditions |
Rating |
Units | ||
Min |
Max | |||||
Power supply voltage* |
VCC |
-- |
-0.3 |
+7 |
V | |
Input voltage* | CK1 |
VCK1 |
-- |
-0.3 |
VCC + 0.3 ( +7) |
V |
CK2 |
VCK2 |
-- | ||||
INH |
IINH |
-- | ||||
Reset output voltage* |
RESET |
VOL VOH |
-- |
-0.3 |
VCC + 0.3 ( +7) |
V |
Reset output current |
IOL IOH |
-- |
-10 |
+10 |
mA | |
Power dissipation |
PD |
Ta +85 °C |
-- |
200 |
mW | |
Storage temperature |
Tstg |
-- |
-55 |
+125 |
°C |
The MB3793-30A is an integrated circuit to monitor power voltage; it incorporates a watchdog timer.
A reset signal of MB3793-30A 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 MB3793-30A has a mask option that can detect voltages of 4.9 V to 2.4 V in 0.1-V steps.