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PDF 5H0280R Fiche technique ( Data sheet )

Numéro de référence 5H0280R
Description KA5H0280R
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor Logo 



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5H0280R Datasheet, Description
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www.fairchildsemi.com
KA5x02xx-SERIES
KA5H0265RC, KA5M0265R, KA5L0265R,
KA5H02659RN/KA5M02659RN, KA5H0280R,
KA5M0280R
Fairchild Power Switch(FPS)
Features
• Precision Fixed Operating Frequency (100/67/50kHz)
• Low Start-up Current (Typ. 100uA)
• Pulse by Pulse Current Limiting
• Over Load Protection
• Over Voltage Protection (Min. 25V)
• Internal Thermal Shutdown Function
• Under Voltage Lockout
• Internal High Voltage Sense FET
• Auto-Restart Mode
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 RCC
switching converter solution. The Fairchild Power Switch(FPS)
can reduce total component count, design size, weight and at the
same time increase efficiency, productivity, and system
reliability. It has a basic platform well suited for cost-effective
design in either a flyback converter or a forward converter.
TO-220F-4L
8-DIP
TO220-5L
Internal Block Diagram
1
1. GND
2. Drain
3. Vcc
4. FB
1
1
1.6.7.8. Drain
1. Drain
2. GND
2. GND
3. Vcc
3. Vcc
4. FB
4. FB
5. NC
5. S/S
VCC
32V
* Soft Start
uA
5V
FB
5µA 1mA 2.5R
9V 1R
+
5V Internal
Vref bias
Good
logic
OSC
+
S
Q
R
L.E.B
0.1V
7.5V
+ Thermal S/D
27V
OVER VOLTAGE S/D
S
Q
R
Power on reset
* KA5H0265RC
©2003 Fairchild Semiconductor Corporation
SFET
DRAIN
GND
Rev.1.0.4
5H0280R Fiche technique
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KA5X02XX-SERIES
Electrical Characteristics (SFET Part)
(Ta=25°C unless otherwise specified)
Parameter
KA5x0265xRx
Drain-Source Breakdown Voltage
Zero Gate Voltage Drain Current
Static Drain-Source on Resistance (Note)
Forward Transconductance (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
KA5x0280R
Drain-Source Breakdown Voltage
Zero Gate Voltage Drain Current
Static Drain-Source on Resistance (Note)
Forward Transconductance (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
Symbol
BVDSS
IDSS
RDS(ON)
gfs
Ciss
Coss
Crss
td(on)
tr
td(off)
tf
Qg
Qgs
Qgd
BVDSS
IDSS
RDS(ON)
gfs
Ciss
Coss
Crss
td(on)
tr
td(off)
tf
Qg
Qgs
Qgd
Condition
Min.
VGS=0V, ID=50µA
VDS=Max. Rating, VGS=0V
VDS=0.8Max. Rating,
VGS=0V, TC=125°C
VGS=10V, ID=0.5A
VDS=50V, ID=0.5A
VGS=0V, VDS=25V,
f=1MHz
VDD=0.5B VDSS, ID=1.0A
(MOSFET switching time is
essentially independent of
operating temperature)
VGS=10V, ID=1.0A,
VDS=0.5B VDSS (MOSFET
switching time is essentially
independent of operating
temperature)
650
-
-
-
1.5
-
-
-
-
-
-
-
-
-
-
VGS=0V, ID=50µA
VDS=Max. Rating, VGS=0V
VDS=0.8Max. Rating,
VGS=0V, TC=125°C
VGS=10V, ID=0.5A
VDS=50V, ID=0.5A
VGS=0V, VDS=25V,
f=1MHz
VDD=0.5B VDSS, ID=1.0A
(MOSFET switching time is
essentially independent of
operating temperature)
VGS=10V, ID=1.0A,
VDS=0.5B VDSS (MOSFET
switching time is essentially
independent of operating
temperature)
800
-
-
-
1.5
-
-
-
-
-
-
-
-
-
-
Typ. Max. Unit
- -V
- 50 µA
- 200 µA
5.0 6.0
2.5 -
550 -
38 -
17 -
20 -
15 -
55 -
25 -
S
pF
nS
- 35
3 - nC
12 -
- -V
- 50 µA
- 200 µA
5.6 7.0
2.5 -
250 -
52 -
25 -
21 -
28 -
77 -
24 -
S
pF
nS
- 60
15 - nC
20 -
Note:
1. Pulse test: Pulse width 300µS, duty cycle 2%
2. S = -1--
R
3

3 Page

5H0280R pdf
KA5X02XX-SERIES
Typical Performance Characteristics (Continued)
(These characteristic graphs are normalized at Ta=25°C)
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Fig.7 Stop Threshold Voltage
1.15
1.1
1.05
Vstop 1
0.95
0.9
0.85
-25 0 25 50 75 100 125 150
Temperature [°C]
Figure 7. Stop Threshold Voltage
1.2
1.15
1.1
1.05
Vz 1
0.95
0.9
0.85
0.8
-25
Fig.9 Vcc Zener Voltage
0 25 50 75 100 125 150
Temperature [°C]
Figure 9. VCC Zener Voltage
Fig.11 Shutdown Delay Current
1.2
1.15
1.1
1.05
Idelay 1
0.95
0.9
0.85
0.8
-25 0 25 50 75 100 125 150
Temperature [°C]
Figure 11. Shutdown Delay Current
Fig.8 Maximum Duty Cycle
1.15
1.1
1.05
Dmax 1
0.95
0.9
0.85
-25 0 25 50 75 100 125 150
Temperature [°C]
Figure 8. Maximum Duty Cycle
Fig.10 Shutdown Feedback Voltage
1.15
1.1
1.05
Vsd 1
0.95
0.9
0.85
-25
0 25 50 75 100 125 150
Temperature [°C]
Figure 10. Shutdown Feedback Voltage
Fig.12 Over Voltage Protection
1.15
1.1
1.05
Vovp 1
0.95
0.9
0.85
-25 0 25 50 75 100 125 150
Temperature [°C]
Figure 12. Over Voltage Protection
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