FAN4800I Fairchild Semiconductor, FAN4800I Datasheet - Page 7

• Manufacturer Part Number: FAN4800I
• Description: The FAN4800 is a controller for power-factor-corrected, switched-mode power supplies
• Manufacturer: Fairchild Semiconductor

FAN4800 Rev. 1.0.6
© 2005 Fairchild Semiconductor Corporation
Electrical Characteristics
Unless otherwise stated, these specifications apply: V
Notes:
1. This parameter, although guaranteed by design, is not 100% production tested.
2. Includes all bias currents to other circuits connected to the V
3. Gain = K × 5.375V; K = (I
PFC
PWM
SUPPLY
R
R
R
R
R
R
R
R
PWM(ls)
Symbol
ON
ON
ON
ON
V
ON
ON
ON
ON
V
t
D
D
r(pwm)
t
th(start)
Vol1
Vol2
th(hys)
r(pfc)
(high)1
(high)2
(high)3
(high)4
I
max.
I
min.
(low)1
(low)2
(low)3
(low)4
D
op
st
Minimum Duty Cycle
Maximum Duty Cycle
Output Low R
Output Low Voltage
Output High R
Rise/Fall Time
Duty Cycle Range
Output Low R
Output Low Voltage
Output High R
Rise/Fall Time
PWM Comparator Level Shift
Startup Current
Operating Current
Under-Voltage Lockout Threshold
Under-Voltage Lockout Hysteresis
Parameter
SENSE
dson
dson
dson
dson
(1)
(1)
– I
(Continued)
OFFSET
) × [I
AC
V
V
I
I
I
T
I
I
C
I
I
I
T
I
I
C
V
14V, C
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
× (V
CC
IEAO
IEAO
A
A
CC
L
L
= 25°C
= 1000pF
= 25°C
= 1000pF
= 15V, R
= 12V, C
EAO
= -20mA at T
= -100mA at T
= -10mA, V
= 20mA at T
= 100mA at T
= -20mA at T
= -100mA at T
= -10mA, V
= 20mA at T
= 100mA at T
7
> 4.0V
< 1.2V
L
= 0pF
Condition
– 0.625)]
FB
(1)
T
L
pin.
= 52.3kΩ, C
= 0pF
CC
CC
A
A
A
A
A
A
-1
= 25°C
= 25°C
A
A
= 9V,
= 9V,
= 25°C
= 25°C
; V
= 25°C
= 25°C
= 25°C
= 25°C
EAO (MAX.)
T
= 470pF, T
12.74
Min.
0-42
2.80
0.6
= 6V.
92
A
= -40°C to 125°C.
13.00
Typ.
0-47
3.00
100
0.4
0.4
0.9
2.5
95
15
15
50
15
15
50
Max.
13.26
0-49
3.20
200
0.8
0.8
1.2
7.0
15
15
20
20
15
15
20
20
0
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Unit
mA
µA
ns
ns
%
%
%
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
V
V
V
V
V