FAN7685 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
View to exact match
FAN7685 Datasheet PDF : 14 Pages
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FAN7685/FAN7686/FAN7687
Internal Block Diagrams
Vcc 13
VS12 10
(9)
VS5 12
VS33 11
IS33 9
(8)
Vcc
Start-up
Vref
REF.
3.6V
Vref
POR
Oscillator
Reset
UVP
L
L
H
Delay
75ms
CLK
clr
L
R
L
PGI_O
OVP L
L
CLK
PSON
clr
Delay
CLK
2.3ms
R
L Debounce L
73us
CLK
R
L
R
S QL
L
PWR
L
PSON L Debounce L
38ms
R CLK
3.6V
H
Q
H
L
L
L
H FPO
L
3 FPO
Vcc
3.6V
150uA
L 4 PSON
14 PGO
2 GND
IS5 8
(7)
IS12 5
8*Iref
8*Iref 8*Iref
Vcc
Iref
6
RI
UVP
H
L
L
L
1.2V
1
Vref
PSON
PGI
L
H
R CLK
H Debounce H
73us
Short
Detector
when AC ON
LH
H Delay
clr 300ms
CLK
FAN7685
(FAN7686)
VCC12 13
VS12 10
VS5 12
VS33 11
IS33 9
IS5 8
IS12 5
ISVCC12 7
Vcc
Start-up
REF.
3.6V
Vref
POR
Oscillator
Power On Reset
Reset
UVP
Block
UVP L
L
H
Delay
75ms
CLK
clr
CLK
PSON
clr
Delay
2.3ms CLK
R
L Debounce
L
73us
CLK
R
L
R
S QL
OVP OVP
Block
L
LR
PGI_O
L
PSON L Debounce L
38ms
R CLK
3.6V
Q
L
L
L
L 3 FPO
H FPO
Vcc
150uA
3.6V
L 4 PSON
H 14 PGO
2 GND
OCP
COMPs
Vcc
Iref
H
8*Iref
1.2V
Vref
6
1
RI
PGI
H
UVP
L
L
L
PSON
L
H
R CLK
H Debounce H
73us
Short
Detector
when AC ON
LH
H Delay
clr 300ms
CLK
FAN7687
FAN7687A
2
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