FAN6920 查看數據表（PDF） - Fairchild Semiconductor
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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 Current-Sense Section
VCSPFC
Threshold Voltage for Peak
Current Cycle-by-Cycle Limit
tPD
Propagation Delay
tBNK
Leading-Edge Blanking Time
AV
CSPFC Compensation Ratio for
THD
VCOMP = 5V
PFC Output Section
VZ
PFC Gate Output Clamping
Voltage
VOL
PFC Gate Output Voltage Low
VOH
PFC Gate Output Voltage High
tR
PFC Gate Output Rising Time
tF
PFC Gate Output Falling Time
VDD = 25V
VDD = 15V, IO = 100mA
VDD = 15V, IO = 100mA
VDD = 12V, CL = 3nF,
20~80%
VDD = 12V, CL = 3nF,
80~20%
PFC Zero-Current Detection Section
VZCD
Input Threshold Voltage Rising
Edge
VZCD Increasing
VZCD-HYST
VZCD-HIGH
VZCD-LOW
VZCD-SSC
Threshold Voltage Hysteresis
Upper Clamp Voltage
Lower Clamp Voltage
Starting Source Current
Threshold Voltage
VZCD Decreasing
IZCD = 3mA
tDELAY
tRESTART-PFC
tINHIB
Maximum Delay from ZCD to
Output Turn-On
Restart Time
VCOMP = 5V,
fS = 60kHz
Inhibit Time (Maximum Switching
Frequency Limit)
VCOMP = 5V
VZCD-DIS
PFC Enable / Disable Function
Threshold Voltage
tZCD-DIS
PFC Enable / Disable Function
Debounce Time
VZCD = 100mV
Min. Typ. Max. Units
0.77
0.82
0.87
V
110
200
ns
110
180
250
ns
0.90
0.95
1.00
V/V
14.0
15.5
17.0
V
1.5
V
8
V
30
65
100
ns
30
50
70
ns
1.9
2.1
2.3
V
0.25
0.35
0.45
V
8
10
V
0.35
0.45
0.55
V
0.70
0.90
1.10
V
100
200
ns
300
500
700
µs
1.5
2.5
3.5
µs
0.15
0.20
0.25
V
100
150
200
µs
Continued on the following page…
© 2010 Fairchild Semiconductor Corporation
FAN6920MR • Rev. 1.0.3
9
www.fairchildsemi.com
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