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FS6M12653RTC
Fairchild Power Switch(FPS)
Features
•
•
•
•
•
•
•
•
•
•
Fixed Frequency
Internal Burst Mode Controller for Stand-by Mode
Pulse By Pulse Over Current Limiting
Over Current Protection(Auto Restart Mode)
Over Voltage Protection (Auto Restart Mode)
Over Load Protection(Auto Restart Mode)
Internal Thermal Shutdown Function(Latch Mode)
Under Voltage Lockout
Internal High Voltage Sense FET
Soft Start
Description
The Fairchild Power Switch(FPS) product family is specially
designed for an off line SMPS with minimal external
components. The Fairchild Power Switch(FPS) consist of
high voltage power SenseFET and current mode PWM IC.
Included PWM controller features integrated fixed oscillator,
under voltage lock out, leading edge blanking, optimized gate
turn-on/turn-off driver, thermal shut down protection, over
voltage protection, and temperature compensated precision
current sources for loop compensation and fault protection
circuitry. compared to discrete MOSFET and controller or
R
CC
switching converter solution, a Fairchild Power
Switch(FPS) can reduce total component count, design size,
and weight and at the same time increase efficiency,
productivity, and system reliability. It has a basic platform
well suited for cost effective LCD monitor power supply.
TO-220F-5L
1
1. Drain 2. GND 3. V
CC
4. Feedback 5. SoftStart
Internal Block Diagram
V
CC
Drain
3
Vref
OSC
Vref
Vfb
Vth=1V
Burst mode
controller
1
SoftStart
5
Internal
Bias
Vref
UVLO
S
Q
Ron
Vcc
Vth=11V/12V
R
Roff
PWM
Feedbock
4
Ifb
2.5R
R
Vcc
Vfb Offset
Rsenese
Vref
Idelay
OLP
Vth=7.5V
Vcc
Vth=33V
OVP
OCL
Filter
(130nsec)
Vth=2V
2
GND
S
UVLO Reset
(Vcc=9V)
Q
Q
S
R
Power-on
Reset
(Vcc=6.5V)
TSD
(Tj=160
℃)
R
Rev.1.0.3
©2003 Fairchild Semiconductor Corporation
FS6M12653RTC
Absolute Maximum Ratings
(Ta=25°C, unless otherwise specified)
Characteristic
Drain-Gate Voltage (R
GS
=1MΩ)
Gate-Source (GND) Voltage
Drain Current Pulsed
(1)
Continuous Drain Current (Tc = 25°C)
Continuous Drain Current (T
C
=100°C)
Single Pulsed Avalanche Current
(3)
(Energy
(2)
)
Maximum Supply Voltage
Input Voltage Range
Total Power Dissipation
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
Symbol
V
DGR
V
GS
I
DM
I
D
I
D
I
AS
(E
AS
)
V
CC, MAX
V
FB
V
SS
P
D
(Watt H/S)
Darting
T
j
T
A
T
STG
Value
650
±30
21.2
5.3
3.4
27(960)
35
-0.3 to V
CC
-0.3 to 10
50
0.4
+150
-25 to +85
-55 to +150
Unit
V
V
A
DC
A
DC
A
DC
A(mJ)
V
V
V
W
W/°C
°C
°C
°C
Notes:
1. Repetitive rating: Pulse width limited by maximum junction temperature
2. L=81mH, starting Tj=25°C
3. L=13uH, starting Tj=25°C
2
FS6M12653RTC
Electrical Characteristics (SFET part)
(Ta=25°C unless otherwise specified)
Parameter
Drain-Source Breakdown Voltage
Zero Gate Voltage Drain Current
Static Drain-Source On Resistance
(1)
Forward Transconductance
(2)
Input Capacitance
Output Capacitance
Reverse Transfer Capacitance
Turn On Delay Time
Rise Time
Turn Off Delay Time
Fall Time
Total Gate Charge
(Gate-Source+Gate-Drain)
Gate-Source Charge
Gate-Drain (Miller) Charge
Note:
1. Pulse test : Pulse width
≤
300µS, duty 2%
1
-
2. S
= ---
R
Symbol
BV
DSS
I
DSS
R
DS(ON)
gfs
Ciss
Coss
Crss
td(on)
tr
td(off)
tf
Qg
Qgs
Qgd
Condition
V
GS
=0V, I
D
=250µA
V
DS
=650V, V
GS
=0V
V
DS
=520V
V
GS
=0V, T
C
=125°C
V
GS
=10V, I
D
=1.8A
V
DS
=50V, I
D
=1.8A
V
GS
=0V, V
DS
=25V,
f = 1MHz
V
DD
=325V, I
D
=6.5A
(MOSFET switching
time are essentially
independent of
operating temperature)
V
GS
=10V, I
D
=6.5A,
V
DS
=520V (MOSFET
Switching time are
Essentially independent of
Operating temperature)
Min.
650
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ.
-
-
-
0.73
-
1820
185
32
38
120
200
100
60
10
30
Max.
-
200
300
0.9
-
-
-
-
-
-
-
-
-
-
-
Unit
V
µA
µA
Ω
S
pF
nS
nC
3
FS6M12653RTC
Electrical Characteristics
(Continued)
(Ta=25°C unless otherwise specified)
Parameter
UVLO SECTION
Start Threshold Voltage
Stop Threshold Voltage
OSCILLATOR SECTION
Initial Frequency
Voltage Stability
Temperature Stability (2)
Maximum Duty Cycle
Minimum Duty Cycle
FEEDBACK SECTION
Feedback Source Current
Shutdown Feedback Voltage
Shutdown Delay Current
SOFTSTART SECTION
Softstart Voltage
Softstart Current
BURST MODE SECTION
Burst Mode Low Threshold Voltage
Burst Mode High Threshold Voltage
Burst Mode Enable Feedback Voltage
Burst Mode Peak Current Limit (4)
Burst Mode Frequency
Peak Current Limit (4)
PROTECTION SECTION
Over Voltage Protection
Over Current Latch Voltage (3)
Thermal Shutdown Temp (2)
TOTAL DEVICE SECTION
Start Up Current
Operating Supply Current (1)
I
START
I
OP
I
OP(MIN)
I
OP(MAX)
V
FB
= GND, V
CC
= 14V
V
FB
= GND, V
CC
= 16V
V
FB
= GND, V
CC
= 12V
V
FB
= GND, V
CC
= 30V
-
10
15
mA
-
0.1
0.17
mA
V
OVP
V
OCL
T
SD
V
CC
≥
29V
-
-
29
1.8
140
33
2.0
160
37
2.2
-
V
V
°C
V
BURL
V
BURH
V
BEN
I
BURPK
F
BUR
I
OVER
V
FB
= 0V
V
FB
= 0V
V
CC
= 10.5V
V
CC
= 10.5V, V
FB
= 0V
V
CC
= 10.5V, V
FB
= 0V
-
10.4
11.4
0.7
0.46
63
2.82
11.0
12.0
1.0
0.6
70
3.2
11.6
12.6
1.3
0.74
77
3.58
V
V
V
A
kHz
A
V
SS
I
SS
V
FB
= 2
V
SS
= V
4.7
0.8
5.0
1.0
5.3
1.2
V
mA
I
FB
V
SD
I
DELAY
V
FB
= GND
V
FB
≥
6.9V
V
FB
= 5V
0.7
6.9
3.2
0.9
7.5
4.0
1.1
8.1
4.8
mA
V
µA
F
OSC
F
STABLE
∆F
OSC
D
MAX
D
MIN
-
12V
≤
V
CC
≤
23V
-25°C
≤
Ta
≤
85°C
-
-
63
0
0
75
-
70
1
±5
80
-
77
3
±10
85
0
kHz
%
%
%
%
V
START
V
STOP
V
FB
= GND
V
FB
= GND
14
8
15
9
16
10
V
V
Symbol
Condition
Min.
Typ.
Max.
Unit
CURRENT LIMIT(SELF-PROTECTION)SECTION
Notes:
1. These parameters are the current flowing in the Control IC.
2. These parameters, although guaranteed at the design, are not 100% tested in production.
3. These parameters, although guaranteed, are tested in EDS(wafer test) process.
4. These parameters indicate Inductor current.
4
FS6M12653RTC
Typical Performance Characteristics
0.150 [mA]
Start Up Current vs. Temp
11.0
[mA]
Operating Current vs. Temp
0.125
10.5
0.100
10.0
0.075
9.5
0.050
-25
0
25
50
75
100
125
150
9.0
-25
0
25
50
75
100
125
150
Temp
Temp
Figure 1. Start Up Current vs. Temp
Figure 2. Operating Current vs. Temp
16.0 [V]
Start Threshold Voltage vs. Temp
10.0
[V]
Stop Threshold Voltage vs. Temp
15.5
9.5
15.0
9.0
14.5
8.5
14.0
-25
0
25
50
75
100
125
150
8.0
-25
0
25
50
75
100
125
150
Temp
Temp
Figure 3. Start Threshold Voltage vs. Temp
Figure 4. Stop Threshold Voltage vs. Temp
[KHz]
76
74
Initial Freqency vs. Temp
81.0
[%]
Maximum Duty vs. Temp
80.5
72
70
68
79.5
66
64
-25
0
25
50
75
100
125
150
79.0
-25
0
25
50
75
100
125
150
80.0
Temp
Figure 5. Initial Freqency vs. Temp
Temp
Figure 6. Maximum Duty vs. Temp
5
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