SG6932 Fairchild Semiconductor, SG6932 Datasheet - Page 7

• Manufacturer Part Number: SG6932
• Description: The highly integrated SG6932 is designed for power supplies with boost PFC and forward PWM
• Manufacturer: Fairchild Semiconductor

© 2007 Fairchild Semiconductor Corporation
SG6932 • Rev. 1.1.3
Electrical Characteristics
V
V
Oscillator
V
PFC Stage
Voltage Error Amplifier
V
V
V
OVP
OVP
Symbol
G
V
G
DD
DD
RMS
V
OFF-FBPFC
t
RI
UVP
V
I
I
V
RMS-UVP-1
RMS-UVP-2
V
V
RI
VDD-OVP
FBPFC-L
FBPFC-H
I
I
FBPFC-H
FBPFC-H
FBPFC-L
FBPFC-L
DD-OVP
V
DD-OP
DD ST
f
t
=15V, T
DD-min
DD-OP
TH-ON
V
SHORT
OSC
RI
UVP
A
△
Section
OPEN
Z
REF
RI
FBPFC
FBPFC
for UVP and ON/OFF
V
o
VFB
A
= 25°C unless otherwise noted.
Continuously Operating Voltage
Start-Up Current
Operating Current
Start Threshold Voltage
Minimum Operating Voltage
V
Delay Time of V
RI Voltage
PWM Frequency
RI Range
RI Pin Open Protection
RI Pin Short Protection
RMS AC Voltage Under-Voltage Threshold to Turn Off PFC
(with T
Recovery Level on V
Under-Voltage Protection to
Turn Off PFC Delay Time (No
Delay for Start-up)
Reference Voltage
Open-Loop Gain
Output Impedance
PFC Over-Voltage Protection
PFC Feedback Voltage Protection Hysteresis
Clamp-High Feedback Voltage
Clamp-High Gain
Clamp-Low Feedback Voltage
Clamp-Low Gain
Maximum Source Current
Maximum Sink Current
PFC Feedback Under-Voltage Protection
Voltage Level on FBPFC to Disable OPWM
DD
OVP1 (Turn Off PWM with Delay)
UVP
Parameter
Delay) for UVP Mode1
DD
OVP1
RMS
for UVP
V
V
R
R
If RI > RI
If RI > RI
R
DD
DD
I
I
I
=24kΩ
=24kΩ
=24kΩ
– 0.16V
= 15V; OPFC OPWM open
OPEN
SHORT
Conditions
7
, PWM Turned Off
, PWM Turned Off
2.15
1.176
+0.17
V
Min.
3.10
2.75
23.4
0.75
UVP-1
2.95
3.20
0.35
150
1.5
13
62
12
60
70
RMS-
9
8
Continued on following page…
2.20
1.200
+0.19
V
Typ.
24.5
0.80
UVP-1
3.00
3.25
3.15
2.85
0.40
110
110
200
195
0.5
6.5
2.0
10
14
10
65
60
90
RMS-
6
2
2.25
1.224
+0.21
Max.
V
25.5
0.85
UVP-1
3.05
3.30
3.20
2.90
0.45
240
120
20
15
11
20
10
25
68
47
RMS-
www.fairchildsemi.com
V
Units
mA/V
mA/V
kHz
mA
mV
mA
ms
μA
kΩ
kΩ
kΩ
dB
kΩ
μA
μs
V
V
V
V
V
V
V
V
V
V
V
V