MB3793 Datasheet, PDF (12/20 Pages) Fujitsu Component Limited. – POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER

MB3793-42/30
s ELECTRICAL CHARACTERISTICS
1. DC Characteristics
(VCC = +5 V (MB3793-42), VCC = +3.3 V (MB3793-30), Ta = +25°C)
Parameter
Symbol
Test Conditions
Min.
Limits
Unit
Typical Max.
Power current
MB3793-42
MB3793-30
ICC1
ICC2
ICC1
ICC2
Watchdog timer operation*
Watchdog timer halt**
Watchdog timer operation*
Watchdog timer halt**
-
27
50
µA
-
25
45
-
25
45
µA
-
24
45
Detection voltage
VSL
MB3793-42
VSH
VSL
MB3793-30
VSH
Ta = +25°C
4.10 4.20 4.30
VCC falling
V
Ta = -40 to +85°C 4.05
4.20
4.35
Ta = +25°C
4.20 4.30 4.40
VCC rising
V
Ta = -40 to +85°C 4.15
4.30
4.45
Ta = +25°C
2.90 3.00 3.10
VCC falling
V
Ta = -40 to +85°C 2.85
3.00
3.15
Ta = +25°C
2.97 3.07 3.17
VCC rising
V
Ta = -40 to +85°C 2.92
3.07
3.22
Detection voltage
hysteresis difference
MB3793-42
MB3793-30
VSHYS
VSH - VSL
50
100
150 mV
30
70
110 mV
Clock-input threshold voltage
Clock-input hysteresis
Inhibition-input threshold voltage
CK1
Input current
CK2
INH
Reset output voltage
MB3793-42
MB3793-30
Reset-output minimum power voltage
VthCH
VthCL
VCHYS
VthIN
IIH
IIL
VOH
VOL
VOH
VOL
VCCL
-
-
-
-
VCK = VCC
VCK = 0 V
IRESET = -5 mA
IRESET = +5 mA
IRESET = -3 mA
IRESET = +3 mA
IRESET = +50 µA
(1.4)
1.9
(2.5) V
(0.8)
1.3
(1.8) V
(0.4)
0.6
(0.8) V
0.8
1.5
2.0 V
-
0
1.0 µA
-1.0
0
-
µA
4.5
4.75
-
V
-
0.12
0.4 V
2.8
3.10
-
V
-
0.12
0.4 V
-
0.8
1.2 V
*At clock input pins CK1 and CK2, the pulse input frequency is 1 kHz and the pulse amplitude is 0 V to VCC.
**Inhibition input is at High level.
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