?2013 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN6961 " Rev. 1.0.6
5
Electrical Characteristics
Unless otherwise noted, V
CC
=15 V and T
J
= -40癈 to 125癈. Current is defined as positive into the device and
negative out of the device.
Symbol
Parameter
Conditions
Min. Typ. Max. Units
V
CC
Section
V
CC-OP
Continuous Operation Voltage
24.5
V
V
CC-ON
Turn-On Threshold Voltage
11.5
12.5
13.5
V
V
CC-OFF
Turn-Off Threshold Voltage
8.5
9.5
10.5
V
I
CC-ST
Startup Current
V
CC
=V
CC-ON
0.16 V
10
20
礎
I
CC-OP
Operating Supply Current
V
CC
=12 V, V
CS
=0 V,
C
L
=3 nF, f
SW
=60 KHz
4.5
6
mA
V
CC-OVP
V
DD
Over-Voltage Protection Level
26.8
27.8
28.8
V
t
D-VCCOVP
V
DD
Over-Voltage Protection Debounce
30
祍
Error Amplifier Section
V
REF
Reference Voltage
2.475 2.500 2.525
V
Gm
Transconductance
125
糾ho
V
INVH
Clamp High Feedback Voltage
2.65
2.70
V
V
INVL
Clamp Low Feedback Voltage
2.25
2.30
V
V
OUT HIGH
Output High Voltage
4.8
V
V
OZ
Zero Duty Cycle Output Voltage
1.15
1.25
1.35
V
V
INV-OVP
Over Voltage Protection for INV Input
2.70
2.75
2.80
V
V
INV-UVP
Under Voltage Protection for INV Input
0.40
0.45
0.50
V
I
COMP
Source Current
V
INV
=2.35 V, V
COMP
=1.5 V
10
20
糀
V
INV
=1.5 V,
550
800
Sink Current
V
INV
=2.65 V, V
COMP
=5 V
10
20
Current-Sense Section
V
PK
Threshold Voltage for Peak Current Limit
Cycle-by-Cycle Limit
0.77
0.82
0.87 V
t
PD
Propagation Delay
200
ns
t
LEB
Leading-Edge Blanking Time
R
MOT
=24 k&, V
COMP
=5 V
400
500
ns
R
MOT
=24 k&,
V
COMP
=V
OZ
+50 mV
270
350
Gate Section
V
Z
-
OUT
Output Voltage Maximum (Clamp)
V
CC
=25 V
14.5
16.0
17.5
V
V
OL
Output Voltage Low
V
CC
=15 V, I
O
=100 mA
1.4
V
V
OH
Output Voltage High
V
CC
=14 V, I
O
=100 mA
8
V
t
R
Rising Time
V
CC
=12 V, C
L
=3 nF,
20~80%
80
ns
t
F
Falling Time
V
CC
=12 V, C
L
=3 nF,
80~20%
40
ns
Continued on the following page&
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