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KA1M0765RC-TU Schematic ( PDF Datasheet ) - Fairchild

Teilenummer KA1M0765RC-TU
Beschreibung Fairchild Power Switch(FPS)
Hersteller Fairchild
Logo Fairchild Logo 




Gesamt 12 Seiten
KA1M0765RC-TU Datasheet, Funktion
KA1M0765R/KA1M0765RC
Fairchild Power Switch(FPS)
www.fairchildsemi.com
Features
• Precision fixed operating frequency (67kHz)
• Pulse by pulse current limiting
• Over load protection
• Over voltage protecton (Min. 23V)
• Internal thermal shutdown function
• Under voltage lockout
• Internal high voltage sense FET
• Auto restart
• Soft start
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
frequency oscillator, under voltage lock out, leading edge
blanking, optimized gate turn-on/turn-off driver, thermal
shutdown protection, over voltage protection, temperature
compensated precision current sources for loop
compensation and fault protection circuit. compared to
discrete MOSFET and PWM controller or RCC 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-3P-5L
TO-220-5L
11
1. DRAIN 2. GND 3. Vcc 4. FB 5. S/S
Internal Block Diagram
#3 VCC
#5 Soft Start
#4 FB
32V 5V Internal
Vref bias
Good
logic
5V
5µA
7.5V
25V
OSC
S
Q
R
1mA 2.5R
9V 1R
+
L.E.B
0.1V
+
+ Thermal S/D
S
Q
R
OVER VOLTAGE S/D
Power on reset
SFET
#1 DRAIN
#2 GND
©2001 Fairchild Semiconductor Corporation
Rev.1.0.2






KA1M0765RC-TU Datasheet, Funktion
KA1M0765R/KA1M0765RC
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

6 Page









KA1M0765RC-TU pdf, datenblatt
KA1M0765R/KA1M0765RC
Ordering Information
Product Number
KA1M0765R-TU
KA1M0765R-YDTU
KA1M0765RC-TU
KA1M0765RC-YDTU
TU : Non Forming Type
YDTU : Forming Type
Package
TO-3P-5L
TO-3P-5L(Forming)
TO-220-5L
TO-220-5L(Forming)
Rating
650V, 7A
650V, 7A
Fosc
67kHz
67kHz
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
10/17/01 0.0m 001
Stock#DSxxxxxxxx
2001 Fairchild Semiconductor Corporation

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