FAN7680 Fairchild Semiconductor, FAN7680 Datasheet - Page 2

• Manufacturer Part Number: FAN7680
• Description: PC Power Supply Outputs Monitoring IC
• Manufacturer: Fairchild Semiconductor

FAN7680
Internal Block Diagram
Typical Applicatin Circuit
2
VS33
V
VS5
PGI
CC
7
6
5
1
H
Vcc
Vref
P S O N
Start-up
PGI_O
UVP
5 V s b
L
L
Vref
L
PSON
REF.
POR
H
PGI_O
1
2
3
4 PSON
L
UVP
Debounce
F A N 7 6 8 0
Reset
R
H
Delay
73us
75ms
PGI
GND
FPO
3.6V
L
clr
Vref
Oscillator
CLK
OVP
L
clr
H
CLK
VS33
R
PGO
VS5
V
L
300ms
Delay
CLK
CC
CLK
8
7
6
5
H
Q
L
L
L
Debounce
CLK
73us
R
Delay
2.3ms
PSON
PSON
clr
3.6V
L
L
L
CLK
R
S
Debounce
R
R
H
38ms
Q
CLK
L
P G I
P G O
+ 1 2 V
5 V s b
+ 5 V
+ 3 . 3 V
L
L
3.6V
H
Vcc
150uA
L
L
3
4
8
2
FPO
PGO
GND
PSON