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參數(shù)資料
| 型號： | MM1075XD |
| 廠商： | MITSUMI ELECTRIC CO LTD |
| 元件分類： | 電源管理 |
| 英文描述： | System Reset (with built-in watchdog timer) Monolithic IC |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8 |
| 封裝： | DIP-8 |
| 文件頁數(shù)： | 7/10頁 |
| 文件大?。?/td> | 241K |
| 代理商： | MM1075XD |
MITSUMI
System Reset (with built-in watchdog timer) MM1075
Measuring Circuit 2-2
SW & Power Supply Table
Item
Symbol
SW1 SW2
V
CCA
V
CC
V
CKA
V
CK
CRT
Notes
V
CC
input pulse width
T
PI
C
B
-
-
CRT1, 2, 3
T1=8μS
CK input pulse width
T
CKW
A
B
-
5V
-
CRT1, 2, 3
T2=3μS
CK input cycle
T
CK
A
B
-
5V
-
CRT1, 2, 3
T3=20μS
Watchdog timer
monitoring time
Reset time for
watchdog timer
Reset hold time for
power supply rise
T
WD
A
A
-
5V
-
5V
CRT1, 2, 3
T
WR
A
A
-
5V
-
5V
CRT1, 2, 3
T
PR
B A
A
-
5V
-
5V
CRT1, 2, 3
T
PD
1
C
A
-
-
0V
CRT1, 3
Output delay time
from V
CC
T
PD
2
C
A
-
-
0V
CRT2, 3
Output rise time
T
R
1
T
R
2
T
P
1
T
P
2
A
A
A
A
A
A
A
A
-
-
-
-
5V
5V
5V
5V
-
-
-
-
5V
5V
5V
5V
CRT1
CRT2
CRT1
CRT2
Output fall time
5V
4V
T1
1.4V
0V
1.4V
0V
1.4V
0V
T2
T3
T2
T2
T3
or
5V
0V
5V
0V
T2
Detection Voltage Adjustment 1
(lowering detection voltage)
Vs pin external resistance
(R2) (k
)
5.0
4.5
100 200
300
400 500
600
D
V
SH
value
V
SL
value
Detection voltage can be changed by
connecting resistor R2 externally to
MM1075 V
S
pin. Determine R2 according to
graph 1 when changing V
S
.
Graph 1. Detection voltage change using MM1075
external resistor
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