KA5M0280R Fairchild Semiconductor, KA5M0280R Datasheet

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KA5M0280R

Manufacturer Part Number
KA5M0280R
Description
The Fairchild Power Switch (FPS) product family is specially designed for an off-line SMPS with minimal external components
Manufacturer
Fairchild Semiconductor
Datasheet

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Features
• Precision Fixed Operating Frequency (100/67/50kHz)
• Low Start-up Current (Typ. 100uA)
• Pulse by Pulse Current Limiting
• Over Load Protection
• Over Voltage Protection (Min. 25V)
• Internal Thermal Shutdown Function
• Under Voltage Lockout
• Internal High Voltage Sense FET
• Auto-Restart Mode
Internal Block Diagram
©2003 Fairchild Semiconductor Corporation
KA5x02xx-SERIES
KA5H0265RC, KA5M0265R, KA5L0265R,
KA5H02659RN/KA5M02659RN, KA5H0280R,
KA5M0280R
Fairchild Power Switch(FPS)
*
Soft Start
V
CC
FB
* KA5H0265RC
uA
5V
5 A
7.5V
27V
32V
1mA
+
+
9V
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 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 R
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.
S
R
Q
1
TO-220F-4L
Power on reset
Internal
1. GND
2. Drain
3. Vcc
4. FB
bias
S
R
Q
1.6.7.8. Drain
2. GND
3. Vcc
4. FB
5. NC
8-DIP
SFET
1
www.fairchildsemi.com
1
DRAIN
GND
TO220-5L
1. Drain
2. GND
3. Vcc
4. FB
5. S/S
CC
Rev.1.0.4

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KA5M0280R Summary of contents

Page 1

... KA5x02xx-SERIES KA5H0265RC, KA5M0265R, KA5L0265R, KA5H02659RN/KA5M02659RN, KA5H0280R, KA5M0280R Fairchild Power Switch(FPS) Features • Precision Fixed Operating Frequency (100/67/50kHz) • Low Start-up Current (Typ. 100uA) • Pulse by Pulse Current Limiting • Over Load Protection • Over Voltage Protection (Min. 25V) • Internal Thermal Shutdown Function • ...

Page 2

KA5X02XX-SERIES Absolute Maximum Ratings (Ta=25 C, unless otherwise specified) Characteristic KA5x0265xRx Drain-Gate Voltage (R = Gate-Source (GND) Voltage (1) Drain Current Pulsed Continuous Drain Current (T = Continuous Drain Current (T =100 C) C Single Pulsed ...

Page 3

Electrical Characteristics (SFET Part) (Ta=25 C unless otherwise specified) Parameter KA5x0265xRx Drain-Source Breakdown Voltage Zero Gate Voltage Drain Current Static Drain-Source on Resistance (Note) Forward Transconductance Input Capacitance Output Capacitance Reverse Transfer Capacitance Turn on Delay Time Rise Time Turn ...

Page 4

... START =GND STOP FB KA5H0265xRx F OSC KA5H0280R KA5M0265xRx F OSC KA5M0280R F KA5L0265R OSC ( - KA5H0265xRx Dmax KA5H0280R KA5M0265xRx Dmax KA5M0280R KA5L0265R I Ta= Vfb 6.5V SD Idelay Ta= Vfb KA5H0265RC I SS Vref Ta=25 C Vref KA5x02659RN OVER KA5x0265Rx I OVER KA5x0280R ...

Page 5

Typical Performance Characteristics (These characteristic graphs are normalized at Ta=25 C) Fig.1 Operating Frequency 1.2 1.15 1.1 1.05 Fosc 1 0.95 0.9 0.85 0.8 - Temperature [ C] Figure 1. Operating Frequency Fig.3 Operating Current 1.2 1.15 ...

Page 6

KA5X02XX-SERIES Typical Performance Characteristics (These characteristic graphs are normalized at Ta=25 C) Fig.7 Stop Threshold Voltage 1.15 1.1 1.05 Vstop 1 0.95 0.9 0.85 - Temperature [ C] Figure 7. Stop Threshold Voltage Fig.9 Vcc Zener Voltage ...

Page 7

Typical Performance Characteristics (These characteristic graphs are normalized at Ta=25 C) Fig.13 Soft Start Voltage 1.15 1.1 1.05 Vss 1 0.95 0.9 0.85 - Temperature [ C] Figure13. Soft Start Voltage (Continued) Rdson 75 100 125 150 ...

Page 8

KA5X02XX-SERIES Package Dimensions 8 TO-220F-4L ...

Page 9

Package Dimensions (Continued) TO-220F-4L(Forming) KA5X02XX-SERIES 9 ...

Page 10

KA5X02XX-SERIES Package Dimensions 10 (Continued) 8-DIP ...

Page 11

Package Dimensions (Continued) TO-220-5L KA5X02XX-SERIES 11 ...

Page 12

KA5X02XX-SERIES Package Dimensions 12 (Continued) TO-220-5L(Forming) ...

Page 13

... KA5M0265RYDTU TO-220F-4L(Forming) KA5L0265RTU TO-220F-4L KA5L0265RYDTU TO-220F-4L(Forming) Product Number Package KA5H0280RTU TO-220F-4L KA5H0280RYDTU TO-220F-4L(Forming) KA5M0280RTU TO-220F-4L KA5M0280RYDTU TO-220F-4L(Forming) Product Number Package KA5H02659RN KA5M02659RN TU : Non Forming Type YDTU : Forming Type Marking Code 5H0265RC 5M0265R 5L0265R Marking Code 5H0280R 5M0280R ...

Page 14

... KA5X02XX-SERIES 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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