FAN6921ML Fairchild Semiconductor, FAN6921ML Datasheet - Page 9

• Manufacturer Part Number: FAN6921ML
• Description: The highly integrated FAN6921ML combines a Power Factor Correction (PFC) controller and a Quasi-Resonant PWM controller
• Manufacturer: Fairchild Semiconductor

© 2010 Fairchild Semiconductor Corporation
FAN6921ML • Rev. 1.0.2
Electrical Characteristics
V
PFC Output Section
PFC Zero Current Detection Section
PWM Stage
Feedback Input Section
t
DD
RESTART-PFC
V
V
Symbol
V
V
V
V
t
ZCD-HYST
t
=15V, T
ZCD-HIGH
ZCD-LOW
t
ZCD-DIS
ZCD-SSC
t
V
t
ZCD-DIS
FB-OLP
DELAY
V
FB-OLP
FB-SS
V
V
INHIB
Z
V
A
I
t
t
ZCD
OZ
OH
OZ
OL
R
F
FB
V
Z
A
=-40℃~105℃ (T
PFC Gate Output Clamping
Voltage
PFC Gate Output Voltage Low
PFC Gate Output Voltage High
PFC Gate Output Rising Time
PFC Gate Output Falling Time
Input Threshold Voltage Rising
Edge
Threshold Voltage Hysteresis
Upper Clamp Voltage
Lower Clamp Voltage
Starting Source Current
Threshold Voltage
Maximum Delay from ZCD to
Output Turn-On
Restart Time
Inhibit Time (Maximum
Switching Frequency Limit)
PFC Enable/Disable Function Threshold Voltage
PFC Enable/Disable Function
Debounce Time
Input-Voltage to Current Sense
Attenuation
Input Impedance
Bias Current
Zero Duty-Cycle Input Voltage
Open-Loop Protection Threshold Voltage
The Debounce Time for Open-Loop Protection
Internal Soft-Start Time
Parameter
(4)
A
=T
(4)
J
), unless otherwise specified.
(Continued)
(4)
V
V
V
V
20~80%
V
80~20%
V
V
I
I
I
V
V
V
A
0<V
FB>V
FB=V
V
ZCD
ZCD
ZCD
DD
DD
DD
DD
DD
ZCD
ZCD
COMP
COMP
ZCD
V
FB
= V
=0V~3.6V
= 25V
=15V, I
=15V, I
=12V, C
=12V, C
=3mA
=-1.5mA
=5µA
CS
=100mV
Increasing
Decreasing
G
OZ
=5V, f
=5V
Conditions
<0.9
CS
9
/ V
O
O
L
L
S
=100mA
=100mA
=3nF,
=3nF,
=60KHz
FB
,
1/2.75
14.0
0.25
0.55
300
150
100
100
1.9
0.8
1.5
0.7
3.9
8.5
30
30
40
Min.
8
8
3
Continued on the following page…
1/3.00
15.5
0.35
0.70
500
200
150
2.1
0.9
2.5
1.2
0.9
4.2
9.5
65
50
10
50
Typ.
5
1/3.25
17.0
0.45
0.85
10.5
100
200
700
250
200
1.5
2.3
1.0
3.5
2.0
1.1
4.5
70
60
Max.
7
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Units
V/V
mV
mA
KΩ
ms
ms
µs
µs
µs
ns
ns
ns
V
V
V
V
V
V
V
V
V
V