FSQ0765RS Fairchild Semiconductor, FSQ0765RS Datasheet - Page 7

• Manufacturer Part Number: FSQ0765RS
• Description: A Quasi-Resonant Converter (QRC) generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency
• Manufacturer: Fairchild Semiconductor

FSQ0765RS • Rev. 1.0.2
© 2008 Fairchild Semiconductor Corporation
Electrical Characteristics
T
Notes:
11.Guaranteed by design, but not tested in production.
12. Includes gate turn-on time.
A
PROTECTION SECTION
SYNC SECTION
TOTAL DEVICE SECTION
Symbol
t
V
= 25°C unless otherwise specified.
I
OSP_FB
I
I
DELAY
V
START
V
V
V
V
V
CLAMP
t
t
LIMIT
V
t
T
Hys
OSP
sync
I
I
LEB
OSP
SH1
SH2
OP
CH
STR
SL1
SL2
SD
SD
Peak Current Limit
Shutdown Feedback Voltage
Shutdown Delay Current
Leading-Edge Blanking Time
Output Short
Protection
Thermal
Shutdown
Sync Threshold Voltage 1
Sync Delay Time
Sync Threshold Voltage 2
Low Clamp Voltage
Operating Supply Current
(Control Part Only)
Start Current
Startup Charging Current
Minimum V
(11)
(11)
STR
Parameter
Threshold Time
Threshold Feedback
Voltage
Feedback Blanking Time
Shutdown Temperature
Hysteresis
Supply Voltage
(11)(12)
(Continued)
(11)
T
V
V
T
OSP triggered when t
V
t
V
V
I
I
V
V
(before V
V
50V
OSP_FB
SYNC_MAX
SYNC_MIN
J
CC
FB
J
FB
CC
CC
CC
CC
CC
7
= 25°C, di/dt = 460mA/µs
= 25°C
>V
= 5V
= 15V
= 15V, V
= 15V, V
= 13V
= 10V
= 0V, V
OSP
Conditions
CC
& lasts longer than
= 800µA
= 50µA
STR
reaches V
FB
FB
= 2V
= 2V
= minimum
ON
START
<t
OSP
)
,
Min. Typ. Max. Units
0.65
2.20
125
350
5.5
1.8
2.0
1.0
0.8
4.3
4.0
0.0
4
1
2.50
0.85
250
140
230
450
6.0
1.2
2.0
2.5
1.2
1.0
4.7
4.4
0.4
60
26
5
3
www.fairchildsemi.com
2.80
1.00
155
550
6.5
1.4
3.0
1.4
1.2
5.1
4.8
0.8
6
5
mA
mA
µA
µA
ns
µs
µs
°C
ns
A
V
V
V
V
V
V