Data Sheet

www.onsemi.com
6
FAN7930C — Critical Conduction Mode PFC Controller
Electrical Characteristics
V
CC
= 14 V and T
A
= -40°C~+125°C, unless otherw ise specified.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
Zero-Current Detect Section
V
ZCD
Input Voltage Threshold
(
4
)
1.35
1.50
1.65
V
HY
ZCD
Detect Hysteresis
(
4
)
0.05
0.10
0.15
V
V
CLAMPH
Input High Clamp Voltage
I
DET
=3 mA
5.5
6.2
7.5
V
V
CLAMPL
Input Low Clamp Voltage
I
DET
= -3 mA
0
0.65
1.00
V
I
ZCD,BS
Input Bias Current
V
ZCD
=1 V~5 V
-1.0
-0.1
1.0
µA
I
ZCD,SR
Source Current Capability
(
4
)
T
A
=25°C
-4
mA
I
ZCD,SK
Sink Current Capability
(
4
)
T
A
=25°C
10
mA
t
ZCD,D
Maximum Delay From ZCD to Output
Turn-On
(
4
)
dV/dt=-1 V/100 ns, from
5 V to 0 V
100
200
ns
Output Section
V
OH
Output Voltage High
I
O
=-100 mA , T
A
=25°C
9.2
11.0
12.8
V
V
OL
Output Voltage Low
I
O
=200 mA , T
A
=25°C
1.0
2.5
V
t
RISE
Rising Time
(
4
)
C
IN
=1 nF
50
100
ns
t
FALL
Falling Time
(
4
)
C
IN
=1 nF
50
100
ns
V
O,MAX
Maximum Output Voltage
V
CC
=20 V, I
O
=100 µA
11.5
13.0
14.5
V
V
O,UVLO
Output Voltage w ith UVLO Activated
V
CC
=5 V, I
O
=100 µA
1
V
Restart / Maximum Switching Frequency Limit Section
t
RST
Restart Timer Delay
50
150
300
µs
f
MAX
Maximum Sw itching Frequency
(
4
)
250
300
350
kHz
RDY Pin
I
RDY,SK
Output Sink Current
1
2
4
mA
V
RDY,SAT
Output Saturation Voltage
I
RDY,SK
=2 mA
320
500
mV
I
RDY,LK
Output Leakage Current
Output High Impedance
1
µA
Soft-Start Timer Section
t
SS
Internal Soft-Soft
(
4
)
3
5
7
ms
UVLO Section
V
RDY
Output Ready Voltage
2.166
2.240
2.314
V
HY
RDY
Output Ready Hysteresis
0.189
V
Protections
V
OVP
OVP Threshold Voltage
T
A
=25°C
2.620
2.675
2.730
V
HY
OVP
OVP Hysteresis
T
A
=25°C
0.120
0.175
0.230
V
V
EN
Enable Threshold Voltage
0.40
0.45
0.50
V
HY
EN
Enable Hysteresis
0.05
0.10
0.15
V
T
SD
Thermal Shutdow n Temperature
(
4
)
125
140
155
°C
T
HYS
Hysteresis Temperature of TSD
(
4
)
60
°C
Note:
4. These parameters, although guaranteed by design, are not production tested.