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PDF KA1H0365R-YDTU Data sheet ( Hoja de datos )
| Número de pieza | KA1H0365R-YDTU | |
| Descripción | Fairchild Power Switch(FPS) | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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www.fairchildsemi.com
KA1L0365R/KA1M0365R/KA1H0365R
Fairchild Power Switch(FPS)
Features
• Precision Fixed Operating Frequency
• KA1L0365R(50kHz), KA1M0365R(67kHz),
KA1H0365R(100kHz)
• Pulse by Pulse Over Current Limiting
• Over Load Protection
• Over Voltage Protection (Min. 23V)
• Internal Thermal Shutdown Function
• Under Voltage Lockout
• Internal High Voltage Sense FET
• Auto Restart
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
controller IC. 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, temperature compensated
precision current sources for loop compensation and fault
protection circuit. compared to discrete MOSFET and
controller or RCC switching converter solution, a 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
Internal Block Diagram
1
1. GND 2. DRAIN 3. VCC 4. FB
#3 VCC
#4 FB
32V 5V Internal
Vref bias
Good
logic
5µA
7.5V
25V
9V
1mA
2.5R
1R
+
OSC
−
+
S
Q
R
L.E.B
0.1V
−
+ Thermal S/D
−
OVER VOLTAGE S/D
S
Q
R
Power on reset
SFET
©2003 Fairchild Semiconductor Corporation
#2 DRAIN
#1 GND
Rev.1.0.2
1 page  
Typical Performance Characteristics
(These characteristic graphs are normalized at Ta=25°C)
KA1L0365R/KA1M0365R/KA1H0365R
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
IloOpP 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
IIsStTart1.1
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
IIFfbB 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
IIopveeark 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
VVstht(aHr)t 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 | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet KA1H0365R-YDTU.PDF ] | |
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