FAN6791 Datasheet, PDF (7/19 Pages) Fairchild Semiconductor – Highly Integrated, Dual-PWM Combination Controller

Electrical Characteristics
VDD=18V; RI=24kΩ;TA =25°C, unless noted.
Symbol
Parameter
VDD Section
VDD-OP Continuously Operating Voltage
IDD ST
Startup Current
IDD-OP1 Operating Current 1
IDD-OP2 Operating Current 2
VTH-ON
VTH-OFF
VTH-OLP
ITH-OLP
VDD-OVP
tOVP
HV
Start Threshold Voltage
Minimum Operating Voltage
IDD-OLP Off Voltage
Internal Sink Current
VDD Over-voltage Protection
(Turn Off PWM with Delay)
VDD Over-Voltage Protection
Debounce
ID
Maximum Input Current
IHV-CS Internal Current Source
Oscillator and Green-Mode Operation
VRI
RI Voltage
fOSC
Normal PWM Frequency
fOSC-G-MIN
RI
Minimum Frequency in Green
Mode
RI Range
RIOPEN RI Pin Open Protection
RISHORT RI Pin Short Protection
VRMS for AC Brownout Protection
VRMS-OFF
Off Threshold Voltage for AC
Brownout Protection
VRMS-ON
Start Threshold Voltage for AC
Brownout Protection
tRMS
AC Brownout Protection
Debounce Time
VREF
VREF
Reference Voltage
△VREF1
Load Regulation of Reference
Voltage
△VREF2
Line Regulation of Reference
Voltage
IREF_MAX Maximum Current
IOS
Output Short Circuit
Conditions
VDD – 0.16V
VDD=15V, GATE Open
VDD=15V, GATE Open,
IREF=10mA
VTH-OLP +0.1V
VDD-OVP=26V
VAC=90V(VDC=120V),
VDD=10µF
HV=500V,VDD=15V
Center Frequency,
RI=24kΩ
Jitter Range
RI=24kΩ
If RI > RIOPEN, PWM
Turned Off
If RI > RISHORT, PWM
Turned Off
RI=24kΩ
IREF=1mA, CREF=0.1µF
CREF=0.1µF,
IREF=1mA to 10mA
CREF=0.1µF,
VDD=12V to 22V
Min.
15
9
6.5
70
23.4
80
Typ.
10
6
16
16
10
7.5
80
24.5
100
Max. Units
22
V
50
μA
10
mA
20
mA
17
V
11
V
8.0
V
100
μA
25.5
V
120
μs
1.5
1.176
62
±3.7
18
12
1
2.5
10
1.200
65
±4.2
20
24
3.5
mA
50
μA
1.224
V
68
kHz
±4.7
22
kHz
47
kΩ
MΩ
6
kΩ
0.75
0.80
0.85
V
VRMS-UVP-1 VRMS-UVP-1 VRMS-UVP-1
+0.17
+0.19
+0.21
V
150
195
240
ms
4.75
5.00
5.25
V
80
mV
25
mV
10
15
mA
15
20
25
mA
© 2008 Fairchild Semiconductor Corporation
FAN6791 / FAN6793 • Rev. 1.0.2
7
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