FAN4800A Datasheet, PDF (11/24 Pages) Fairchild Semiconductor – PFC/PWM Controller Combination

Electrical Characteristics (Continued)
VDD=15V, TA=25°C, RT=6.8kΩ, CT=1000pF unless noted operating specifications.
Symbol
Parameter
PFC ILIMIT Comparator
VPFC-ILIMIT
Peak Current Limit
Threshold Voltage,
Cycle-by-Cycle Limit
ΔVpk
PFC ILIMIT-Gain
Modulator Output
PFC Output Driver
VGATE-CLAMP
Gate Output Clamping
Voltage
VGATE-L Gate Low Voltage
VGATE-H Gate High Voltage
tr
Gate Rising Time
tf
Gate Falling Time
DPFC-MAX
DPFC-MIN
Maximum Duty Cycle
Minimum Duty Cycle
Brown Out
VRMS-UVP VRMS Threshold Low
VRMS-UVP VRMS Threshold High
ΔVRMS-UVP Hysteresis
tUVP
Under-Voltage
Protection Delay Time
Soft Start
VSS-MAX
Maximum Voltage
ISS
Soft-Start Current
PWM ILIMIT Comparator
VPWM-ILIMIT Threshold Voltage
tPD
tPWM-Bnk
Delay to Output
Leading-Edge Blanking
Time
Range (FAN4801/1S/2/2L)
VRMS-L
RMS AC Voltage Low
VRMS-H
RMS AC Voltage High
VEA-L
VEA Low
VEA Low (FAN4801S)
VEA-H
VEA High
VEA High (FAN4801S)
Itc
Two-Level Current
Conditions
IAC=17.67µA, VRMS=1.08V VFBPFC=2.25V,
at T=25°C
VDD=22V
VDD=15V; IO=100mA
VDD=13V; IO=100mA
VDD=15V; CL=4.7nF; O/P=2V to 9V
VDD=15V; CL=4.7nF; O/P=9V to 2V
VIEA<1.2V
VIEA>4.5V
FAN4800A/C, FAN4801/1S/2
FAN4802L
FAN4800A/C, FAN4801/1S/2
FAN4802L
FAN4800A/C, FAN4801/1S/2
FAN4802L
VDD=15V
When VRMS=1.95V at132Vrms
When VRMS=2.45V at150Vrms
When VVEA=1.95V at 30% Loading,
When VVEA=2.80V at 60% Loading
When VVEA=2.45V at 40% Loading,
When VVEA=3.35V at 70% Loading
FBPFC Two-Level Current
Min.
-1.25
200
13
8
40
40
94
1.00
0.85
1.85
1.60
750
650
340
9.5
0.95
170
1.90
2.40
1.90
2.75
2.40
3.30
18
Typ.
-1.15
15
70
60
97
1.05
0.90
1.90
1.65
850
750
410
10.0
10
1.00
250
250
1.95
2.45
1.95
2.80
2.45
3.35
20
Max. Units
-1.05 V
mV
17
V
1.5
V
V
120 ns
110 ns
%
0
%
1.10 V
0.95 V
1.95 V
1.70 V
950 mV
850 mV
480 ms
10.5 V
µA
1.05 V
ns
350 ns
2.00 V
2.50 V
2.00
V
2.85
2.50
V
3.40
22
µA
© 2008 Fairchild Semiconductor Corporation
FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.1
11
www.fairchildsemi.com