FSD146MRBN Fairchild Semiconductor, FSD146MRBN Datasheet - Page 5

• Manufacturer Part Number: FSD146MRBN
• Description: The FSD146MRBN is an integrated Pulse Width Modulation (PWM) controller and SenseFET designed for offline Switch-Mode Power Supplies (SMPS) with minimal external components
• Manufacturer: Fairchild Semiconductor

© 2011 Fairchild Semiconductor Corporation
FSD146MRBN • Rev. 1.0.0
Electrical Characteristics
T
SenseFET Section
Control Section
Burst-Mode Section
Protection Section
J
Symbol
V
= 25C unless otherwise specified.
R
V
t
BV
V
V
V
I
RECOMM
OSP_FB
D
C
V
V
V
D
DELAY
TSD
T
C
t
t
t
I
DS(ON)
V
t
START
d(on)
d(off)
f
t
I
BURH
DSS
I
STOP
BURL
OSP
LEB
S/S
LIM
OSS
f
MAX
HYS
OVP
OSP
HYS
FB
t
t
MIN
ISS
S
SD
DSS
r
f
S
Drain-Source Breakdown Voltage
Zero-Gate-Voltage Drain Current
Drain-Source On-State Resistance
Input Capacitance
Output Capacitance
Rise Time
Fall Time
Turn-On Delay
Turn-Off Delay
Switching Frequency
Switching Frequency Variation
Maximum Duty Ratio
Minimum Duty Ratio
Feedback Source Current
UVLO Threshold Voltage
Internal Soft-Start Time
Recommended V
Burst-Mode Voltage
Peak Drain Current Limit
Shutdown Feedback Voltage
Shutdown Delay Current
Leading-Edge Blanking Time
Over-Voltage Protection
Output-Short
Protection
Thermal Shutdown Temperature
(12)
Parameter
Threshold Time
Threshold V
V
CC
FB
(12)
(12)
Range
Blanking Time
(12)
FB
(12,14)
(12)
(12)
V
V
V
V
V
V
V
V
V
V
-25C < T
V
V
V
V
After Turn-On, V
V
V
di/dt = 300mA/s
V
V
V
OSP Triggered when
t
(Lasts Longer than t
Shutdown Temperature
Hysteresis
ON
CC
DS
GS
DS
DS
DS
DS
DS
DS
CC
CC
CC
FB
FB
STR
CC
CC
CC
CC
<t
=10V, I
= 0
= 0V, V
= 650V, T
= 25V, V
= 25V, V
= 325V, I
= 325V, I
= 325V, I
= 325V, I
= 14V, V
= 14V, V
= 14V, V
= 14V, V
= 14V, V
= 14V, V
= 0V, I
Sweep
OSP
= 40V, V
5
Conditions
& V
J
D
D
CC
< 125C
FB
= 250A
=1A
GS
GS
FB
FB
FB
FB
FB
FB
D
D
D
D
CC
A
= 4A, R
>V
Sweep
= 4A, R
= 4A, R
= 4A, R
= 4V
= 4V
= 0V
Sweep
= 4V
= 0V, f=1MHz
= 0V, f=1MHz
Sweep
= 25C
FB
Sweep
OSP
= 0V
OSP_FB
G
G
G
G
=25Ω
=25Ω
=25Ω
=25Ω
)
Continued on the following page…
Min.
0.45
0.30
1.35
6.45
23.0
650
125
7.0
1.2
0.7
1.8
2.0
61
61
65
11
13
Typ.
0.50
0.35
1.50
7.00
24.5
436
150
300
135
2.1
7.5
2.0
1.0
2.0
2.5
65
24
24
13
30
67
±5
67
90
12
15
60
Max.
0.55
0.40
1.65
7.55
26.0
250
±10
115
145
2.6
8.0
2.8
1.3
2.2
3.0
73
73
13
23
0
www.fairchildsemi.com
Unit
kHz
mV
ms
A
pF
pF
A
A
C
C
ns
ns
ns
ns
ns
s
s
%
%
%
Ω
V
V
V
V
V
V
A
V
V
V