KA1M0965R Fairchild, KA1M0965R Datasheet

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KA1M0965R

Manufacturer Part Number
KA1M0965R
Description
Fairchild Power Switch(FPS)
Manufacturer
Fairchild
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
KA1M0965R
Manufacturer:
FAIRCHILD
Quantity:
12 500
Features
• Precision Fixed Operating Frequency (67kHz)
• 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
• Soft Start
Internal Block Diagram
©2003 Fairchild Semiconductor Corporation
KA1M0965R
Fairchild Power Switch(FPS)
#5 Soft Start
#3 V
#4 FB
CC
5V
5 A
7.5V
25V
32V
1mA
+
+
5V
2.5R
OVER VOLTAGE S/D
1R
Thermal S/D
+
OSC
Vref
5V
0.1V
L.E.B
Good
logic
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 R
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.
S
R
1. DRAIN 2. GND 3. V
Q
TO-3P-5L
Power on reset
Internal
bias
1
S
R
Q
CC
switching converter solution, a Fairchild
CC
4. FB 5. S/S
SFET
www.fairchildsemi.com
#1 DRAIN
#2 GND
Rev.1.0.3

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KA1M0965R Summary of contents

Page 1

... KA1M0965R Fairchild Power Switch(FPS) Features • Precision Fixed Operating Frequency (67kHz) • 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 • ...

Page 2

... KA1M0965R Absolute Maximum Ratings Parameter Drain Gate Voltage (R = Gate-Source (GND) Voltage (2) Drain Current Pulsed Single Pulsed Avalanche Energy Continuous Drain Current (T = Continuous Drain Current (T =100 C) C Maximum Supply Voltage Input Voltage Range Total Power Dissipation Operating Ambient Temperature ...

Page 3

... =0.5BV DS switching time are essentially Qgs independent of Qgd operating temperature) 2% Min. Typ. Max. Unit =50 A 650 - D = =125 C C =4.5A - 0.96 D =4.5A 5 1750 =25V 190 - =9. DSS =9.0A (MOSFET DSS - 12 - 35.4 KA1M0965R - 200 A 1 180 ...

Page 4

... KA1M0965R Electrical Characteristics (Control Part) (Ta=25 C unless otherwise specified) Parameter UVLO SECTION Start Threshold Voltage Stop Threshold Voltage OSCILLATOR SECTION Initial Accuracy Frequency Change With Temperature Maximum Duty Cycle FEEDBACK SECTION Feedback Source Current Shutdown Feedback Voltage Shutdown Delay Current SOFT START SECTION ...

Page 5

... Temperature [ ] C Figure 2. Feedback Source Current Fig.4 Max Inductor Current 1.1 1.05 1 0.95 0.9 0.85 0.8 - 100 125 150 Temperature [ ] C Figure 4. Peak Current Limit Fig.6 Start Threshold Voltage 1.15 1.1 1.05 1 0.95 0.9 0.85 - 100 125 150 Temperature [ ] C Figure 6. Start Threshold Voltage KA1M0965R 125 150 5 ...

Page 6

... KA1M0965R Typical Performance Characteristics (These characteristic graphs are normalized at Ta=25 C) Fig.7 Stop Threshold Voltage 1.15 1.1 1.05 V Vstop th(L) 1 0.95 0.9 0.85 - Temperature [ Figure 7. Stop Threshold Voltage Fig.9 Vcc Zener Voltage 1.2 1.15 1.1 1. 0.95 0.9 0.85 0.8 - Temperature [ Figure 9. V Zener Voltage CC Fig.11 Shutdown Delay Current 1.2 1.15 1.1 1.05 Idelay 1 0.95 0.9 0.85 0.8 - ...

Page 7

... Ta=25 C) Fig.13 Soft Start Voltage 1.15 1.1 1.05 Vss 1 0.95 0.9 0.85 - Temperature [ Figure 13. Soft Start Voltage (Continued) Rdson 75 100 125 150 ] C Figure 14. Static Drain Source on Resistance Fig.14 Drain Source Turn-on Resistance 2 0 100 125 150 Temperature [ ] C KA1M0965R 7 ...

Page 8

... KA1M0965R Package Dimensions 8 TO-3P-5L ...

Page 9

... Package Dimensions (Continued) TO-3P-5L (Forming) KA1M0965R 9 ...

Page 10

... KA1M0965R Ordering Information Product Number Package KA1M0965RTU TO-3P-5L KA1M0965RYDTU TO-3P-5L(Forming Non Forming Type YDTU : Forming Type 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 ...

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