MB3793-42PF FUJITSU [Fujitsu Component Limited.], MB3793-42PF Datasheet - Page 17

• Manufacturer Part Number: MB3793-42PF
• Description: POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER
• Manufacturer: FUJITSU [Fujitsu Component Limited.]

STANDARD CONNECTION
Equation of time-setting capacitances (C
Value of A, B, C and D
(Example) When C
1300
A
t
t
t
V
C
PR
WD
WR
CC
TW
However, when C
t
WD
(ms) ≈ A × C
(ms) ≈ B × C
(ms) ≈ D × C
(ms) ≈ B × C
t
t
t
PR
WD
WR
C
≈ 130 [ms]
≈ 15 [ms]
≈ 10 [ms]
TP
1500
B
TP
TP
TW
TP
TW
3
(µF)
2
= 0.1 µF and C
(µF)
(µF) + C × C
TP
(µF)
CTW
CTP
/C
INH
TW
6
C
3
≤ 10,
MB3793
GND
V
4
5
CC
TP
TW
RESET
(µF)
= 0.01 µF,
100
CK2
CK1
TP
D
and C
1
8
7
TW
) and set time
Remark
RESET V
CK
processor 1
Micro-
GND
CC
RESET V
CK
processor 2
MB3793-42
Micro-
GND
CC
17