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Fairchild Semiconductor - KA5Q0565RT

Numéro de référence 5Q0565RT
Description KA5Q0565RT
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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5Q0565RT fiche technique
KA5Q0565RT
Fairchild Power Switch(FPS)
www.fairchildsemi.com
Features
• Quasi Resonant Converter Controller
• Internal Burst Mode Controller for Stand-by Mode
• Pulse by Pulse Current Limiting
• Over Current Latch Protection
• Over Voltage Protection (Vcc: Min. 27V)
• 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) consists of a
high voltage power SenseFET and a current mode PWM IC.
The integrated PWM controller includes the fixed oscillator,
the under voltage lock out, the leading edge blanking, the
optimized gate turn-on/turn-off driver, the thermal shut down
protection, the over voltage protection, and the temperature
compensated precision current sources for loop compensation
and fault protection circuitry. Compared to a discrete
MOSFET and a controller or a RCC switching converter
solutions, a Fairchild Power Switch(FPS) can reduce the total
number of components, design size, and weight, so it will
improve efficiency, productivity, and system reliability. It has
a basic platform well suited for cost-effective design in a
quasi-resonant converter as a C-TV power supply.
TO-220F-5L
Internal Block Diagram
1. Drain 2. GND 3. VCC
4. Feedback 5. Sync
VCC DRAIN
31
SYNC 5
FEEDBACK 4
Burst Mode
3.5V/1.25V
Normal Mode
4.6V/2.6V
VREF
Ifb
11V on
12V off
-
+
-
+
+ OSC
-
2.5R
R
-
+
7.5V
VCC
30V
Idelay 1V
+
- OLP
+
- OVP
+
-
Power
on
Reset
SQ
R
Internal
BIAS
VREF
S QB
R
LEB
450ns
+
-
UVLO
15V/9V
RnRoon
RfRoof ff
Offset
QS
R
Power
Reset
Delay
80ns
+
-
OCL
Rsense
1V
Thermal
Shut Down
2 SOURCE
©2004 Fairchild Semiconductor Corporation
Rev.1.0.4
www.DataSheet.in

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