Data Sheet
© 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSQ0365, FSQ0265, FSQ0165, FSQ321 • Rev. 1.0.6 6
FSQ0365/0265/0165/321 — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter
Electrical Characteristics
T
A
=25C unless otherwise specified.
Symbol Parameter Condition Min. Typ. Max. Unit
SenseFET Section
BV
DSS
Drain-Source Breakdown Voltage V
CC
=0V, I
D
=100µA 650 V
I
DSS
Zero-Gate-Voltage Drain Current V
DS
=650V 100 µA
R
DS(ON)
Drain-Source On-
State Resistance
(11)
FSQ0365
T
J
=25C, I
D
=0.5A
3.5 4.5
FSQ0265 5.0 6.0
FSQ0165 8.0 10.0
FSQ321
14.0 19.0
C
ISS
Input Capacitance
FSQ0365
V
GS
=0V, V
DS
=25V, f=1MHz
315
pF
FSQ0265 550
FSQ0165 250
FSQ321 162
C
OSS
Output Capacitance
FSQ0365
V
GS
=0V, V
DS
=25V, f=1MHz
47
pF
FSQ0265 38
FSQ0165 25
FSQ321 18
C
RSS
Reverse Transfer
Capacitance
FSQ0365
V
GS
=0V, V
DS
=25V, f=1MHz
9.0
pF
FSQ0265 17.0
FSQ0165 10.0
FSQ321 3.8
t
d(on)
Turn-On Delay
FSQ0365
V
DD
=350V, I
D
=25mA
11.2
ns
FSQ0265 20.0
FSQ0165 12.0
FSQ321 9.5
t
r
Rise Time
FSQ0365
V
DD
=350V, I
D
=25mA
34
ns
FSQ0265 15
FSQ0165 4
FSQ321 19
t
d(off)
Turn-Off Delay
FSQ0365
V
DD
=350V, I
D
=25mA
28.2
ns
FSQ0265 55.0
FSQ0165 30.0
FSQ321 33.0
t
f
Fall Time
FSQ0365
V
DD
=350V, I
D
=25mA
32
ns
FSQ0265 25
FSQ0165 10
FSQ321 42
Burst-Mode Section
V
BURH
Burst-Mode Voltage T
J
=25°C, t
PD
=200ns
(12)
0.45 0.55 0.65 V
V
BURL
0.25 0.35 0.45 V
V
BUR(HYS)
200 mV
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