mb3769apf Fujitsu Microelectronics, Inc., mb3769apf Datasheet - Page 19

• Manufacturer Part Number: mb3769apf
• Description: Switching Regulator Controller
• Manufacturer: Fujitsu Microelectronics, Inc.

SYNCHRONIZED OUTSIDE CLOCK CIRCUIT
5 V
5 V
5 V
5 V
10 V
10 V
10 V
10 V
1 V
1 V
1 V
1 V
Fig. 20
Fig. 21
Fig. 22
500 ns
500 ns
500 ns
500 nS
V
C
V
C
GND Level (C
C
GND Level (C
OUT (10 V/div)
OUT (10 V/div)
V
OUT (10 V/div)
GND Level (C
P
T
P
T
P
T
(5 V/div)
(5 V/div)
(1 V/div)
(5 V/div)
(1 V/div)
(1 V/div)
T
T
T
)
)
)
1.No Clamp Circuit (Connect with GND)
C
R
2.Clamp Circuit A (Dividing Resistor)
C
R
3.Clamp Circuit B (Apply MB3761)
C
R
5 pin
5 pin
T
T
T
T
T
T
5 pin
220 pF
= 11 k
= 11 k
= 11 k
220 pF
= 150 pF + Prove Capacitor (~ 15 pF)
150 pF
= 220 pF + Prove capacitor (~ 15 pF)
= 220 pF + Prove capacitor (~ 15 pF)
C
C
C
T
T
T
0.1
0.1 F
820
F
5.1 k
5.1 k
5.1 k
V
REF
MB3769A
MB74HC04
MB74HC04
1.2 k
4.7 k
MB74HC04
3
4
MB3761
V
REF
5
8
V
V
V
P
P
P
19