FAN6921MR Fairchild Semiconductor, FAN6921MR Datasheet - Page 11

• Manufacturer Part Number: FAN6921MR
• Description: The highly integrated FAN6921MR combines Power Factor Correction (PFC) controller and Quasi-Resonant PWM controller
• Manufacturer: Fairchild Semiconductor

© 2009 Fairchild Semiconductor Corporation
FAN6921MR Rev. 1.0.2
Electrical Characteristics
V
PWM Output Section
Current Sense Section
t
V
V
V
STARTER-PWM
DD
Symbol
CS-FLOATING
CTL-PFC-OFF
CTL-PFC-ON
t
V
t
V
t
=15V, T
PFC-OFF
V
ON-BNK
PFC-ON
t
V
CLAMP
V
SLOPE
CS-H
t
LIMIT
t
t
PD
OH
OL
R
F
A
=-40℃~105℃ (T
Threshold Voltage on FB Pin for
PFC EnableDisable
Threshold Voltage on FB Pin for
PFC Disable  Enable
PFC Disable Debounce Time
PFC Enable Debounce Time
Start Timer (Time-Out Timer)
PWM Gate Output Clamping
Voltage
PWM Gate Output Voltage Low
PWM Gate Output Voltage High
PWM Gate Output Rising Time
PWM Gate Output Falling Time
Delay to Output
The Limit Voltage on CSPWM
Pin for Over Power
Compensation
Slope Compensation
Leading-Edge Blanking Time
CSPWM Pin Floating V
Clamped High Voltage
The Delay Time once CSPWM
Pin Floating
Parameter
A
=T
J
), unless otherwise specified.
(4)
(Continued)
CSPWM
RANGE Pin Internally
Open
RANGE Pin Internally
Ground
RANGE Pin Internally
Open
RANGE Pin Internally
Ground
PFC Enable 
Disable
PFC Disable 
Enable
V
V
V
V
V
C
20~80%
C
20~80%
I
I
I
I
t
RANGE=Open
t
CSPWM Pin Floating
CSPWM Pin Floating
DET
DET
DET
DET
ON
ON
FB
FB
DD
DD
DD
L
L
=3nF, V
=3nF, V
=45µs,
=0µs
=25V
=15V, I
=15V, I
=185µA, T
=350µA, T
=550µA, T
＜V
＞V
＜75µA, T
Conditions
G
FB-OLP
11
DD
DD
O
O
=100mA
=100mA
=12V,
=12V,
A
A
A
A
=25°C
=25°C
=25°C
=25°C
Min.
1.70
1.60
1.85
1.70
1.85
16.0
0.81
0.69
0.55
0.37
0.25
0.05
400
2.0
4.5
22
8
Continued on the following page…
Typ.
1.75
1.65
1.90
1.75
2.25
17.5
0.84
0.72
0.58
0.40
0.30
0.10
150
300
500
150
2.5
28
80
40
Max.
1.80
1.70
1.95
1.80
2.65
19.0
0.87
0.75
0.61
0.43
0.35
0.15
600
110
200
3.0
1.5
5.0
34
70
www.fairchildsemi.com
Units
ms
ms
ms
µs
ns
ns
ns
ns
µs
V
V
V
V
V
V
V
V