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Teilenummer | 1H0165R |
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Beschreibung | KA1H0165R | |
Hersteller | Fairchild | |
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Gesamt 12 Seiten www.DataSheet4U.com
KA1H0165RN/KA1H0165R
Fairchild Power Switch(FPS)
www.fairchildsemi.com
Features
• Precision Fixed Operating Frequency (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 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
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 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.
8-DIP
TO-220F-4L
Internal Block Diagram
1
1.6.7.8. Drain
2. GND
3. VCC
4. F/B
5. S/S
1
1. GND
2. Drain
3. VCC
4. F/B
VCC
* Soft Start
FB
32V 5V Internal
Vref bias
Good
logic
5V
5µA 1mA 2.5R
9V 1R
+
OSC
−
+
S
Q
R
L.E.B
0.1V
7.5V −
+
Thermal S/D
S
Q
R
25V −
OVER VOLTAGE S/D
Power on reset
* KA1H0165RN
©2003 Fairchild Semiconductor Corporation
SFET
DRAIN
GND
Rev.1.0.3
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KA1H0165RN/KA1H0165R
Typical Performance Characteristics (Continued)
(These characteristic graphs are normalized at Ta=25°C)
Fig.7 Stop Threshold Voltage
1.15
1.1
1.05
Vsthto(Lp) 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
Temperature [°C]
150
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
6
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KA1H0165RN/KA1H0165R
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
8/25/03 0.0m 001
Stock#DSxxxxxxxx
2003 Fairchild Semiconductor Corporation
12 Page | ||
Seiten | Gesamt 12 Seiten | |
PDF Download | [ 1H0165R Schematic.PDF ] |
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