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FAN6921MR データシート(PDF) 8 Page - Fairchild Semiconductor

部品番号 FAN6921MR
部品情報  Integrated Critical Mode PFC and Quasi-Resonant Current Mode PWM Controller
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メーカー  FAIRCHILD [Fairchild Semiconductor]
ホームページ  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN6921MR データシート(HTML) 8 Page - Fairchild Semiconductor

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© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN6921MR Rev. 1.0.2
8
Electrical Characteristics (Continued)
VDD=15V, TA=-40°C ~105°C (TA=TJ), unless otherwise specified.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
PFC Stage
Voltage Error Amplifier Section
Gm
Transconductance
(4)
100
125
150
µmho
VREF
Feedback Comparator Reference
Voltage
2.465
2.500
2.535
V
VINV-H
Clamp High Feedback Voltage
RANGE=Open
2.70
2.75
2.80
V
RANGE=Ground
2.60
2.65
2.70
VRATIO
Clamp High Output Voltage Ratio
(4)
VINVH / VREF,
RANGE=Open
1.06
1.14
V/V
VINVH / VREF,
RANGE=Ground
1.04
1.08
VINV-L
Clamp Low Feedback Voltage
2.25
2.35
2.45
V
VINV-OVP
Over-Voltage Protection for INV
Input
RANGE=Open
2.90
2.95
V
RANGE=Ground
2.75
2.80
tINV-OVP
Over-Voltage Protection Debounce
Time
50
70
90
µs
VINV-UVP
Under-Voltage Protection for INV
Input
0.35
0.45
0.55
V
tINV-UVP
Under-Voltage Protection
Debounce Time
50
70
90
µs
VINV-BO
PWM and PFC Off Threshold for
Brownout Protection
1.15
1.20
1.25
V
VCOMP-BO
Limited Voltage on COMP Pin for
Brownout Protection
1.55
1.60
1.65
V
VCOMP
Comparator Output High Voltage
4.8
6.0
V
VOZ
Zero Duty Cycle Voltage on COMP
Pin
1.10
1.25
1.40
V
ICOMP
Comparator Output Source
Current
VINV=2.3V, VCOMP=1.5V
15
30
45
µA
VINV=1.5V
0.50
0.75
1.00
mA
Comparator Output Sink Current
RANGE=Open,
VINV=2.75V, VCOMP=5V
20
30
40
µA
RANGE=Ground,
VINV=2.65V, VCOMP=5V
20
30
40
PFC Current Sense Section
VCSPFC
Threshold Voltage for Peak
Current Cycle-by-Cycle Limit
VCOMP=5V
0.82
V
tPD
Propagation Delay
110
200
ns
tBNK
Leading-Edge Blanking Time
110
180
250
ns
AV
CSPFC Compensation Ratio for
THD
0.90
0.95
1.00
V/V
Continued on the following page…


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