MB3773 Datasheet, PDF (8/29 Pages) Fujitsu Component Limited. – Power Supply Monitor with Watch-Dog Timer

MB3773
■ ELECTORICAL CHARACTERISTICS
(1) DC Characteristics
Parameter
Symbol
Condition
(VCC = 5 V, Ta = + 25 °C)
Value
Min Typ Max ^Unit
Supply current
ICC
Watch-dog timer operating
⎯ 600 900 µA
Detection voltage
VCC
VSL
Ta = − 40 °C to + 85 °C
VCC
VSH
Ta = − 40 °C to + 85 °C
4.10 4.20 4.30
4.05 4.20 4.35
V
4.20 4.30 4.40
4.15 4.30 4.45
Hysteresis width
VHYS
VCC
50 100 150 mV
Reference voltage
VREF
⎯
Ta = − 40 °C to + 85 °C
1.227 1.245 1.263
V
1.215 1.245 1.275
Reference voltage change rate
∆VREF1
VCC = 3.5 V to 16 V
⎯
3
10 mV
Reference voltage output
loading change rate
∆VREF2
IOUT = − 200 µA to + 5 µA
− 5 ⎯ + 5 mV
CK threshold voltage
VTH
Ta = − 40 °C to + 85 °C
0.8 1.25 2.0 V
CK input current
IIH
VCK = 5.0 V
IIL
VCK = 0.0 V
⎯
0 1.0
µA
− 1.0 − 0.1 ⎯
CT discharge current
ICTD
Watch-dog timer operating
VCT = 1.0 V
7
10 14 µA
High level output voltage
VOH1
VOH2
VS open, IRESET = − 5 µA
VS = 0 V, IRESET = − 5 µA
4.5 4.9 ⎯
V
4.5 4.9 ⎯
VOL1
VS = 0 V, IRESET = 3 mA
⎯ 0.2 0.4
Output saturation voltage
VOL2
VOL3
VS = 0 V, IRESET = 10 mA
VS open, IRESET = 3 mA
⎯ 0.3 0.5
V
⎯ 0.2 0.4
VOL4
VS open, IRESET = 10 mA
⎯ 0.3 0.5
Output sink current
IOL1
VS = 0 V, VRESET = 1.0 V
IOL2
VS open, VRESET = 1.0 V
20 60 ⎯
mA
20 60 ⎯
CT charge current
ICTU
Power on reset operating
VCT = 1.0 V
0.5 1.2 2.5 µA
Min supply voltage for RESET
VCCL1
VRESET = 0.4 V,
IRESET = 0.2 mA
⎯ 0.8 1.2 V
Min supply voltage for RESET
VCCL2
VRESET = VCC − 0.1 V,
RL (between pin 2 and GND) = ⎯ 0.8 1.2 V
1 MΩ
8