www.fairchildsemi.com
KA5Q0565RT
Features
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Fairchild Power Switch(FPS)
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) consists of a
high voltage power SenseFET and a current mode PWM IC.
The integrated PWM controller includes the fixed oscillator,
the under voltage lock out, the leading edge blanking, the
optimized gate turn-on/turn-off driver, the thermal shut down
protection, the over voltage protection, and the temperature
compensated precision current sources for loop compensation
and fault protection circuitry. Compared to a discrete
MOSFET and a controller or a RCC switching converter
solutions, a Fairchild Power Switch(FPS) can reduce the total
number of components, design size, and weight, so it will
improve efficiency, productivity, and system reliability. It has
a basic platform well suited for cost-effective design in a
quasi-resonant converter as a C-TV power supply.
TO-220F-5L
Quasi Resonant Converter Controller
Internal Burst Mode Controller for Stand-by Mode
Pulse by Pulse Current Limiting
Over Current Latch Protection
Over Voltage Protection (Vcc: Min. 27V)
Internal Thermal Shutdown Function
Under Voltage Lockout
Internal High Voltage Sense FET
Auto-Restart Mode
1. Drain 2. GND 3. V
CC
4. Feedback 5. Sync
Internal Block Diagram
VCC
DRAIN
3
Internal
BIAS
1
-
11V on
12V off
Burst Mode
3.5V/1.25V
VREF
+
-
UVLO
15V/9V
+
-
+
S
Ro
Ron
n
QB
Rof
Roff
f
SYNC
5
Normal Mode
4.6V/2.6V
VREF
+
-
OSC
R
Ifb
LEB
450ns
FEEDBACK
4
2.5R
R
-
+
Idelay
1V
+
-
S
Q
Offset
+
7.5V
Delay
80ns
-
+
-
OLP
Power
on
Reset
OCL
Thermal
Shut Down
Power
Reset
+
-
Rsense
1V
R
Q
S
R
VCC
30V
2
SOURCE
OVP
Rev.1.0.4
©2004 Fairchild Semiconductor Corporation
KA5Q0565RT
Absolute Maximum Ratings
(Ta=25°C, unless otherwise specified)
Parameter
Drain-source Voltage
Drain-Gate Voltage (R
GS
=1MΩ)
Gate-Source (GND) Voltage
Drain Current Pulsed
(2)
Single Pulsed Avalanch Current
(3)
(Energy
(2)
)
Continuous Drain Current (Tc = 25°C)
Continuous Drain Current (T
C
=100°C)
Supply Voltage
Input Voltage Range
Total Power Dissipation
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
Thermal Resistance
ESD Capability, HBM Model (All pins)
ESD Capability, Machine Model (All pins)
Symbol
V
DSS
V
DGR
V
GS
I
DM
I
AS
(E
AS
)
I
D
I
D
V
CC
V
FB
P
D
Derating
T
J
T
A
T
STG
R
thjc
-
-
Value
650
650
±30
11
13(400)
2.8
1.7
30
-0.3 to Vcc
38
0.3
+160
-25 to +85
-55 to +150
3.29
2.0
300
Unit
V
V
V
A
DC
A(mJ)
A
DC
A
DC
V
V
W
W/°C
°C
°C
°C
°C/W
kV
V
Notes:
1. T
j
= 25°C to 150°C
2. Repetitive rating: Pulse width limited by maximum junction temperature
3. L = 30mH, V
DD
= 50V, R
G
= 25Ω, starting T
j
= 25°C
4. L = 13uH, starting T
j
= 25°C
2
KA5Q0565RT
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
(Note)
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%
Symbol
BV
DSS
I
DSS
R
DS(ON)
Ciss
Coss
Crss
td(on)
tr
td(off)
tf
Qg
Qgs
Qgd
Condition
V
GS
= 0V, I
D
= 50µA
V
DS
= Max, Rating, V
GS
= 0V
V
DS
= 0.8*Max., Rating
V
GS
= 0V, T
C
= 85°C
V
GS
= 10V, I
D
= 2.3A
V
GS
= 0V, V
DS
= 25V,
f = 1MHz
V
DD
= 0.5BV
DSS
, I
D
= 7.0A
(MOSFET switching
time are essentially
independent of operating
temperature)
V
GS
= 10V, I
D
= 7.0A,
V
DS
= 0.5B V
DSS
(MOSFET
Switching time are Essentially
independent of operating
temperature)
Min.
650
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ. Max.
-
-
-
1.8
780
90
40
15
45
60
40
43
4.0
7.3
-
200
300
2.2
-
-
-
40
100
130
90
55
-
-
Unit
V
µA
µA
Ω
pF
nS
nC
3
KA5Q0565RT
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 (Note2)
Maximum Duty Cycle
Minimum Duty Cycle
FEEDBACK SECTION
Feedback Source Current
Shutdown Feedback Voltage
Shutdown Delay Current
PROTECTION SECTION
Over Voltage Protection
Over Current Latch Voltage (Note2)
Thermal Shutdown Temp.
SYNC SECTION
Normal Sync High Threshold Voltage
Normal Sync Low Threshold Voltage
Burst Sync High Threshold Voltage
Burst Sync Low Threshold Voltage
V
NSH
V
NSL
V
BSH
V
BSL
V
CC
= 16V, Vfb = 5V
V
CC
= 16V, Vfb = 5V
V
CC
= 10.5V, Vfb = 0V
V
CC
= 10.5V, Vfb = 0V
4.0
2.3
3.2
1.1
4.6
2.6
3.6
1.3
5.2
2.9
4.0
1.5
V
V
V
V
V
CCOVP
V
OCL
T
SD
V
CC
≥
26V
-
-
27
0.9
140
30
1.0
160
33
1.1
-
V
V
°C
I
FB
V
SD
I
DELAY
V
FB
= GND
Vfb
≥
6.9V
V
FB
= 5V
0.7
6.9
4
0.9
7.5
5
1.1
8.1
6
mA
V
µA
F
OSC
F
STABLE
∆F
OSC
D
MAX
D
MIN
-
12V
≤
Vcc
≤
23V
-25°C
≤
Ta
≤
85°C
-
-
18
0
0
92
-
20
1
±5
95
-
22
3
±10
98
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
Note:
1. These parameters is the current flowing in the Control IC.
2. These parameters, although guaranteed, are tested in EDS(wafer test) process.
3. These parameters indicate Inductor Current.
4
KA5Q0565RT
Electrical Characteristics
(Continued)
(Ta=25°C unless otherwise specified)
Parameter
BURST MODE SECTION
Burst Mode Low Threshold Voltage
Burst Mode High Threshold Voltage
Burst Mode Enable Feedback Voltage
Burst Mode Peak Current Limit
Peak Current Limit(Note3)
TOTAL DEVICE SECTION
Start Up Current
Operating Supply Current (Note1)
I
START
I
OP
I
OP(MIN)
I
OP(MAX)
Vfb = GND, V
CC
= 14V
Vfb = GND, V
CC
= 16V
Vfb = GND, V
CC
= 10V
Vfb = GND, V
CC
= 28V
-
10
18
mA
-
0.1
0.2
mA
V
BURL
V
BURH
V
BEN
I
BU_PK
I
PK
Vfb = 0V
Vfb = 0V
Vcc = 10.5V
Vcc = 10.5V
-
10.4
11.4
0.7
0.65
3.08
11.0
12.0
1.0
0.85
3.5
11.6
12.6
1.3
1.1
3.92
V
V
V
A
A
Symbol
Condition
Min. Typ. Max.
Unit
CURRENT LIMIT(SELF-PROTECTION)SECTION
Note:
1. These parameters is the current flowing in the Control IC.
2. These parameters, although guaranteed, are tested in EDS(wafer test) process.
3. These parameters indicate Inductor Current.
5
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