FSQ0365_0709 FAIRCHILD [Fairchild Semiconductor], FSQ0365_0709 Datasheet - Page 7

• Manufacturer Part Number: FSQ0365_0709
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.5
© 2006 Fairchild Semiconductor Corporation
Electrical Characteristics
T
Notes:
13. Pulse test: Pulse-Width=300μs, duty=2%
14. Though guaranteed, it is not 100% tested in production.
15. Propagation delay in the control IC.
16. Includes gate turn-on time.
A
V
Burst Mode Section
Protection Section
Sync Section
Total Device Section
Symbol
V
BUR(HYS)
V
= 25°C unless otherwise specified.
V
V
I
I
DELAY
V
START
V
D
t
t
t
START
t
V
t
V
T
V
STOP
BURH
I
Sync
Δf
S/S1
S/S2
BURL
OVP
I
I
f
f
I
LEB
t
LIM
OVP
OP
CH
STR
FB
S1
S2
MIN
W
SD
SD
SH
SL
S
Detection Time Window
Initial Switching Freq.1
Initial Switching Freq.2
Switching Frequency Variation
Feedback Source Current
Minimum Duty Cycle
UVLO Threshold Voltage
Internal Soft-Start Time1
Internal Soft-Start Time2
Burst-Mode Voltage
Peak Current Limit
Shutdown Feedback Voltage
Shutdown Delay Current
Leading-Edge Blanking Time
Over-Voltage Protection
Over-Voltage Protection Blanking Time
Thermal Shutdown Temperature
Sync Threshold Voltage
Sync Delay Time
Oper. Supply Current (Control Part Only)
Start Current
Start-up Charging Current
Minimum V
STR
Parameter
Supply Voltage
(14)(16)
(Continued)
All but Q321
All but Q321
(14)
FSQ0365
FSQ0265
FSQ0165
FSQ321
FSQ311
(14)
Q321
Q321
(14)
With free-running frequency
T
-25°C < T
V
V
After turn-on
With free-running frequency
T
T
T
T
T
T
V
V
V
V
V
(before V
V
7
J
J
J
J
J
J
J
FB
FB
CC
FB
CC
CC
CC
CC
= 25°C, V
= 25°C, t
= 25°C, di/dt = 240mA/µs
= 25°C, di/dt = 200mA/µs
= 25°C, di/dt = 175mA/µs
= 25°C, di/dt = 125mA/µs
= 25°C, di/dt = 112mA/µs
= 0V
= 0V
= 5V
= 15V
= 15V, V
= 15V
= V
= 0V, V
START
Condition
CC
J
< 85°C
PD
STR
reaches V
sync
FB
- 0.1V
= 200ns
= 2V
= min. 40V
= 0V
START
(15)
)
Min. Typ. Max. Unit
50.5
84.0
0.45
0.25
1.32
1.06
0.53
0.53
0.55
0.14
0.65
700
125
270
0.8
5.5
5.5
11
2
7
4
1
55.6
89.3
0.55
0.35
1.50
1.20
0.60
0.60
0.70
0.20
0.85
900
200
200
140
300
360
3.0
0.9
6.0
6.0
±5
12
15
10
26
8
5
3
3
www.fairchildsemi.com
1100
61.7
95.2
0.65
0.45
1.68
1.34
0.67
0.67
0.85
0.26
1.00
±10
155
450
1.0
6.5
6.5
13
4
0
9
6
5
kHz
kHz
mV
mA
mA
ms
ms
µA
µA
µA
µs
ns
µs
°C
ns
%
%
V
V
V
V
A
V
V
V
V
V