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參數(shù)資料
| 型號(hào)： | MB3793-37A |
| 廠商： | Fujitsu Limited |
| 英文描述： | Power Voltage Monitoring IC with Watchdog Timer |
| 中文描述： | 電源電壓監(jiān)測(cè)與看門狗定時(shí)器集成電路 |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 150K |
| 代理商： | MB3793-37A |
6
MB3793
-37A
I
ELECTRICAL CHARACTERISTICS
1.
DC Characteristics
(V
CC
= +5 V, Ta = +25
°
C)
Value
* :The values enclosed in parentheses ( ) are setting assurance values.
2.
AC Characteristics
(V
CC
= +5 V, Ta = +25
°
C)
Value
*1:The voltage range is 10% to 90% at testing the reset output transition time.
*2:The values enclosed in parentheses ( ) are setting assurance values.
Parameter
Symbol
Conditions
Unit
Min.
Typ.
Max.
Power supply current
I
CC1
After exit from reset
—
30
50
μ
A
Detection voltage
V
SL
V
CC
falling
Ta = +25
°
C
Ta = –40
°
C to +85
°
C
Ta = +25
°
C
Ta = –40
°
C to +85
°
C
3.60
3.70
3.80
V
(3.55)*
3.70
(3.85)*
V
SH
V
CC
rising
3.69
3.79
3.89
V
(3.64)*
3.79
(3.94)*
Detection voltage hysteresis
difference
V
SHYS
V
SH
– V
SL
40
85
130
mV
Clock-input threshold voltage
V
CIH
CK rising
(1.4)*
1.9
2.5
V
V
CIL
CK falling
0.8
1.3
(1.8)*
V
Clock-input hysteresis
V
CHTS
—
(0.4)*
0.6
(0.8)*
V
Inhibition-input voltage
V
IIH
—
3.5
—
—
V
V
IIL
—
—
0
0.8
Input current
(CK1, CK2, INH)
I
IH
V
CK
= 5 V
—
0
1.0
μ
A
μ
A
V
I
IL
V
CK
= 0 V
–1.0
0
—
Reset output voltage
V
OH
I
RESET
= –5 mA
4.5
4.75
—
V
OL
I
RESET
= +5 mA
—
0.12
0.4
V
Reset-output minimum
power voltage
V
CCL
I
RESET
= +50
μ
A
—
0.8
1.2
V
Parameter
Symbol
Conditions
Unit
Min.
Typ.
Max.
Power-on reset hold time
t
PR
C
TP
= 0.1
μ
F
C
TP
= 0.1
μ
F
C
TP
= 0.1
μ
F
C
TW
= 0.01
μ
F,
C
TP
= 0.1
μ
F
C
TP
= 0.1
μ
F
—
80
130
180
ms
μ
s
μ
s
V
CC
input pulse width
t
PI
(110)*
2
—
—
V
CC
delay time
t
PD
—
20
(100)*
2
Watchdog timer reset time
t
WD
7.5
15
22.5
ms
Watchdog timer reset time
t
WR
5
10
15
ms
Clock input pulse width
t
CKW
500
—
—
ns
μ
s
ns
Clock input pulse cycle
t
CKT
—
20
—
—
Reset (RESET) output transition
time*
1
Rising
t
r
*
1
C
L
= 50 pF
—
—
500
Falling
t
f
*
2
C
L
= 50 pF
—
—
500
ns
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