FSQ0465RS Fairchild Semiconductor, FSQ0465RS Datasheet - Page 6

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FSQ0465RS

Manufacturer Part Number
FSQ0465RS
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
Datasheet
FSQ0465RS/RB Rev. 1.0.1
© 2008 Fairchild Semiconductor Corporation
Electrical Characteristics
T
Hysteresis
A
SENSEFET SECTION
CONTROL SECTION
BURST-MODE SECTION
Symbol
R
t
V
BV
V
= 25°C unless otherwise specified.
ON.MAX
V
V
C
V
t
V
DS(ON)
t
D
I
START
t
d(on)
d(off)
t
STOP
t
BURH
DSS
Δf
BURL
AVS
I
OSS
t
SW
S/S
OVP
AVS
t
f
FB
MIN
t
t
W
DSS
B
S
r
f
S
Drain Source Breakdown Voltage
Zero-Gate-Voltage Drain Current
Drain-Source On-State Resistance
Output Capacitance
Turn-On Delay Time
Rise Time
Turn-Off Delay Time
Fall Time
Maximum On Time
Blanking Time
Detection Time Window
Initial Switching Frequency
Switching Frequency Variation
AVS Triggering
Threshold
Switching Time Variance by AVS
Feedback Source Current
Minimum Duty Cycle
UVLO Threshold Voltage
Internal Soft-Start Time
Over-Voltage Protection
Burst-Mode Voltages
(11)
Parameter
On Time
Feedback
Voltage
(11)
(11)
V
V
T
V
V
V
V
V
T
T
T
-25°C < T
at V
(AVS triggered when V
spec. and t
Sync = 500kHz sine input
V
V
V
After turn-on
With free-running frequency
T
J
J
J
J
J
CC
DS
GS
DD
DD
DD
DD
FB
FB
FB
= 25°C, I
= 25°C
= 25°C, V
= 25°C, V
= 25°C, t
6
IN
= 1.2V, t
= 0V
= 0V
= 560V
= 0V, I
= 0V, V
= 350V, I
= 350V, I
= 350V, I
= 350V, I
= 240V
J
Condition
AVS
D
< 85°C
D
PD
DS
sync
sync
ON
= 100µA
DC
= 0.5A
D
D
D
D
= 200ns
< spec.)
= 25V, f = 1MHz
= 25mA
= 25mA
= 25mA
= 25mA
= 4.0µs
, Lm = 360μH
= 5V
= 0V
AVS
(10)
>
Continued on the following page...
Min. Typ. Max. Unit
13.5
59.6
13.5
0.45
0.25
650
700
8.8
18
11
7
10.0
15.0
66.7
17.5
0.55
0.35
900
200
2.2
6.0
4.0
1.2
60
12
20
30
16
±5
12
19
8
www.fairchildsemi.com
1100
11.2
16.5
75.8
20.5
0.65
0.45
250
±10
2.6
13
20
0
9
kHz
mV
ms
µA
pF
µA
ns
ns
ns
ns
µs
µs
µs
µs
µs
%
%
Ω
V
V
V
V
V
V
V

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