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PDF KA3S0880Rxx Data sheet ( Hoja de datos )
| Número de pieza | KA3S0880Rxx | |
| Descripción | Power Switch | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de KA3S0880Rxx (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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www.fairchildsemi.com
KA5x0165Rxx-SERIES
KA5H0165R/RN, KA5M0165R/RN/RI, KA5L0165R/
RN/RI/KA5H0165RV/RVN, KA5M0165RV/RVN,
KA5L0165RV/RVN
Fairchild Power Switch(FPS)
Features
• Precision fixed operating frequency (100 / 67 / 50KHz )
• Pulse by pulse current limiting
• Over current protection
• Over voltage protection (Min. 25V) -KA5x0165R/RN/RI
• 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, aFairchild 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
I2-PAK-5L
Internal Block Diagram
1
1. GND
2. Drain
3. Vcc
4. FB
1
1.6.7.8. Drain
2. GND
3. Vcc
4. FB
5. NC
1
1. GND
2. Drain
3. Vcc
4. FB
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
S
Q
R
27V −
OVER VOLTAGE S/D
Power on reset
©2001 Fairchild Semiconductor Corporation
SFET
DRAIN
GND
Rev.1.0.2
1 page  
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Typical Performance Characteristics
(These characteristic graphs are normalized at Ta=25°C)
KA5X0165RXX-SERIES
Fig.1 Operating Frequency
1.2
1.15
1.1
1.05
Fosc 1
0.95
0.9
0.85
0.8
-25 0 25 50 75 100 125 150
Temperature [°C]
Figure 1. Operating Frequency
1.2
1.15
1.1
1.05
Iop 1
0.95
0.9
0.85
0.8
-25
Fig.3 Operating Current
0 25 50 75 100 125 150
Temperature [°C]
Figure 3. Operating Supply Current
1.5
1.3
1.1
Is tart
0.9
0.7
0.5
-25
Fig.5 Start up Current
0 25 50 75 100 125 150
Temperature [°C]
Figure 5. Start up Current
Fig.2 Feedback Source Current
1.2
1.15
1.1
1.05
Ifb 1
0.95
0.9
0.85
0.8
-25 0 25 50 75 100 125
Temperature [°C]
150
Figure 2. Feedback Source Current
1.1
1.05
IIopveear k 1
0.95
0.9
0.85
0.8
-25
Fig.4 Max Inductor Current
0 25 50 75 100 125 150
Temperature [°C]
Figure 4. Peak Current Limit
Fig.6 Start Threshold Voltage
1.15
1.1
1.05
Vstart 1
0.95
0.9
0.85
-25
0 25 50 75 100 125 150
Temperature [°C]
Figure 6. Start Threshold Voltage
5
5 Page 
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Package Dimensions (Continued)
I2-PAK-5L
KA5X0165RXX-SERIES
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet KA3S0880Rxx.PDF ] | |
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