KA5M0965Q_03 FAIRCHILD [Fairchild Semiconductor], KA5M0965Q_03 Datasheet

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KA5M0965Q_03

Manufacturer Part Number
KA5M0965Q_03
Description
Fairchild Power Switch(FPS)
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
Features
• Precision Fixed Operating Frequency (70kHz)
• Low Start-up Current(Typ. 100uA)
• Pulse by Pulse Current Limiting
• Over Load Protection
• Over Current Protection
• Over Voltage Protection (Min. 25V)
• Internal Thermal Shutdown Function
• Under Voltage Lockout
• Internal High Voltage Sense FET
• Latch Mode
Internal Block Diagram
©2003 Fairchild Semiconductor Corporation
KA5M0965Q
Fairchild Power Switch(FPS)
Feedback 4
Soft Start 5
27V
7.5V
(T
(V
(V
OVP-out
+ + + +
-
J
=150 ℃ )
CC
S
TSD
OCL
=1.4V)
OVP
=27V)
V
CC
+ + + +
-
5uA
O LP
OVP-out
V
REF
5V
1mA
2.5R
Vcc
15V/9V
R
3
OSC
-
+ + + +
UVLO
Power-on Reset
/Auto-restart
CLK
Vref
LEB
V
O F F S E T
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
frequency oscillator, under voltage lock-out, leading edge
blanking, optimized gate turn-on/turn-off driver, thermal
shutdown protection, over voltage protection, and
temperature compensated precision current sources for
loop compensation and fault protection circuitry. compared
to discrete MOSFET and PWM controller or R
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.
1. DRAIN 2. GND 3. VCC 4. FB 5. S/S
Shutdown
S
R
R
Latch
S
TO-3P-5L
Good Logic
INTERNAL
Q
Q
BIAS
1
※ LEB : Leading Edge Blanking
※ OCL : Over Current Limit
VOLTAGE
CIRCUIT
LIMIT
V
S
Rsense
14V
Sense
FET
www.fairchildsemi.com
Drain
1
2
GND
CC
solution, a
Rev.1.0.3

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KA5M0965Q_03 Summary of contents

Page 1

KA5M0965Q Fairchild Power Switch(FPS) Features • Precision Fixed Operating Frequency (70kHz) • Low Start-up Current(Typ. 100uA) • Pulse by Pulse Current Limiting • Over Load Protection • Over Current Protection • Over Voltage Protection (Min. 25V) • Internal Thermal Shutdown ...

Page 2

KA5M0965Q Absolute Maximum Ratings Characteristic 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 ...

Page 3

Electrical Characteristics (SFET Part) ( unless otherwise specified) Characteristic 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 ...

Page 4

KA5M0965Q Electrical Characteristics (Control Part) ( unless otherwise specified) Characteristic 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 ...

Page 5

Typical Performance Characteristics V GS Top : 8 7.5 V 7.0 V 6.5 V 6.0 V 5.5 V Bottom : 5 Drain-Source ...

Page 6

KA5M0965Q Typical Performance Characteristics 1.2 1.1 1.0 0.9 0.8 -100 - Junction Temperature [ J Figure 7. Breakdown Voltage vs. Temperature 2 10 Operation in This Area is Limited by R DS(on ...

Page 7

Typical Performance Characteristics (Control part) (These characteristic graphs are normalized Fig.1 Operating Frequency 1.2 1.15 1.1 1.05 Fosc 1 0.95 0.9 0.85 0.8 - Figure 1. Operating Frequency Fig.3 Operating Current 1.2 ...

Page 8

KA5M0965Q Typical Performance Characteristics (These characteristic graphs are normalized Fig.7 Stop Threshold Voltage 1.15 1.1 1.05 Vstop 1 0.95 0.9 0.85 - Figure 7. Stop Threshold Voltage Fig.9 Vcc Zener Voltage 1.2 ...

Page 9

Typical Performance Characteristics (These characteristic graphs are normalized Fig.13 Soft Start Voltage 1.15 1.1 1.05 Vss 1 0.95 0.9 0.85 - Figure13. Soft Start Voltage (Continued) Rdson 75 100 125 150 Figure ...

Page 10

KA5M0965Q Package Dimensions 10 TO-3P-5L ...

Page 11

Package Dimensions TO-3P-5L (Forming) (Continued) KA5M0965Q 11 ...

Page 12

KA5M0965Q Ordering Information Product Number Package KA5M0965QTU TO-3P-5L KA5M0965QYDTU 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 ...

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