FSFM261 Fairchild Semiconductor, FSFM261 Datasheet - Page 6

• Manufacturer Part Number: FSFM261
• Description: The FSFM260N/261N/300N is an integrated Pulse Width Modulator (PWM) and SenseFET specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components
• Manufacturer: Fairchild Semiconductor

FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1
© 2009 Fairchild Semiconductor Corporation
Electrical Characteristics
T
SenseFET Section
Control Section
Burst Mode Section
A
Symbol
Δf
R
BV
BV
V
= 25°C unless otherwise specified.
V
V
V
Δf
C
C
I
I
D
DS(ON)
t
t
t
t
STABLE
f
D
DSS1
DSS2
START
d(on)
d(off)
d(on)
d(off)
t
BURH
OSC
STOP
BURL
I
OSS
OSS
S/S
DSS
DSS
OSC
MAX
FB
t
t
MIN
t
t
r
f
r
f
1
2
Drain Source Breakdown Voltage of
FSFM260 and FSFM300
Drain Source Breakdown Voltage of
FSFM261
Zero Gate Voltage Drain Current1
Zero Gate Voltage Drain Current2
Static Drain Source on Resistance of
FSFM260
Static Drain Source on Resistance of
FSFM261
Static Drain Source on Resistance of
FSFM300
Output Capacitance of FSFM260/261
Turn-On Delay Time of FSFM260/261
Rise Time of FSFM260/261
Turn-Off Delay Time of FSFM260/261
Fall Time of FSFM260/261
Output Capacitance of FSFM300
Turn-On Delay Time of FSFM300
Rise Time of FSFM300
Turn-Off Delay Time of FSFM300
Fall Time of FSFM300
Switching Frequency
Switching Frequency Stability
Switching Frequency Variation
Feedback Source Current
Maximum Duty Cycle
Minimum Duty Cycle
UVLO Threshold Voltage
Internal Soft-Start Time
Burst Mode Voltages
(12)
(12)
(12)
Parameter
(13)
V
V
V
T
V
T
V
V
V
V
V
V
13V ≤ V
-25°C ≤ T
V
V
V
V
C
C
CC
CC
DS
DS
GS
GS
DD
GS
DD
FB
FB
FB
FB
CC
= 25°C
= 125°C
6
= 3V
= GND
= GND
= 3V
= 650V, V
= 520V, V
= 0V, I
= 0V, I
= 10V, I
= 0V, V
= 325V, I
= 0V, V
= 325V, I
= 14V
CC
A
Condition
D
D
≤ 18V
≤ 85°C
DS
DS
D
= 250µA
= 250µA
D
D
GS
GS
= 2.5A
= 25V, f = 1MHz
= 25V, f = 1MHz
= 5A
= 5A
= 0V,
= 0V,
650
700
Min. Typ. Max. Unit
0.7
61
71
11
10
0
0
7
2.20
2.30
1.76
0.50
0.35
0.9
60
12
20
30
16
75
14
26
32
25
67
±5
77
12
15
1
8
2.60
2.70
2.20
www.fairchildsemi.com
250
250
±10
1.1
73
83
13
20
3
0
9
kHz
mA
ms
µA
µA
pF
pF
ns
ns
%
%
%
Ω
Ω
Ω
%
V
V
V
V
V
V