FAN6920 Ver la hoja de datos (PDF) - Fairchild Semiconductor
Número de pieza
componentes Descripción
Fabricante
FAN6920
Fairchild Semiconductor
FAN6920 Datasheet PDF : 24 Pages
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Electrical Characteristics (Continued)
VDD=15V, TA=-40°C ~105°C (TA=TJ), unless otherwise specified.
Symbol
Parameter
Conditions
PFC STAGE
Voltage Error Amplifier Section
Gm
Transconductance(4)
VREF
Feedback Comparator Reference
Voltage
VINV-H Clamp High Feedback Voltage
RANGE = Open
RANGE = Ground
VRATIO
Clamp High Output Voltage Ratio(4)
VINV-H / VREF,
RANGE = Open
VINV-H / VREF,
RANGE = Ground
VINV-L
VINV-OVP
Clamp Low Feedback Voltage
Over-Voltage Protection for INV
Input
RANGE = Open
RANGE = Ground
tINV-OVP
Over-Voltage Protection Debounce
Time
VINV-UVP
Under-Voltage Protection for INV
Input
VINV-PWMON
PWM ON Threshold Voltage on INV
Pin
VHYST-PWMON
Hysteresis for PWM ON Threshold
Voltage on INV Pin
tINV-UVP
VINV-BO
VCOMP-BO
ICOMP-BURST
VCOMP-H
VCOMP-L
VOZ
ICOMP
Under-Voltage Protection Debounce
Time
PWM and PFC Off Threshold for
Brownout Protection
Limited Voltage on COMP Pin for
Brownout Protection
Internal Bias Current for PFC Burst
Mode
Comparator Output High Voltage
Comparator Output High Voltage at
PFC Burst Mode
Comparator Output Low Voltage at
PFC Burst Mode
Zero Duty Cycle Voltage on COMP
Pin
Comparator Output Source Current
Comparator Output Sink Current
VFB = 1.3V, VVIN = 1.2V
VFB = 1.3V, VVIN = 1.6V
VFB = 1.3V, VVIN = 2V
RANGE = Open,
VFB = 1.3V
VINV = 2.3V, VCOMP = 1.5V
VINV = 1.5V
RANGE = Open,
VINV = 2.75V, VCOMP = 5V
RANGE = Ground,
VINV = 2.65V, VCOMP = 5V
Min. Typ. Max. Units
100
2.465
2.70
2.60
1.06
1.04
2.25
50
125
2.500
2.75
2.65
2.35
2.90
2.75
70
150 µmho
2.535 V
2.80
V
2.70
1.14
V/V
1.08
2.45
V
2.95
V
2.80
90
µs
0.35
0.45 0.55
V
2.2
2.3
2.4
V
VINV-
VINV-
VINV-
PWMON
PWMON
PWMON
V
-1.6
-1.5
-1.4
50
70
90
µs
1.15
1.20 1.25
V
1.55
1.60 1.65
V
120
150
180
µA
4.80
5.20
2.20
2.30 2.40
V
2.00
2.10 2.20
1.80
1.90 2.00
0.9
1.0
1.1
V
1.10
1.25 1.40
V
15
30
45
µA
0.50
0.75 1.00 mA
20
30
40
µA
20
30
40
Continued on the following page…
© 2010 Fairchild Semiconductor Corporation
FAN6920MR • Rev. 1.0.3
8
www.fairchildsemi.com
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