KA5Q0740RT. 5Q0740RT Datasheet

5Q0740RT KA5Q0740RT. Datasheet pdf. Equivalent

Part 5Q0740RT
Description KA5Q0740RT
Feature KA5Q0740RT Fairchild Power Switch(FPS) www.fairchildsemi.com Features • Quasi Resonant Converter C.
Manufacture Fairchild Semiconductor
Datasheet
Download 5Q0740RT Datasheet

KA5Q0740RT Fairchild Power Switch(FPS) www.fairchildsemi.co 5Q0740RT Datasheet
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5Q0740RT
KA5Q0740RT
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 ( Vsync: Min. 11V )
• 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
1. Drain 2. GND 3. VCC
4. Feedback 5. Sync
Internal Block Diagram
Sync.
REF.
+
PSR
REF.
Burst mode Internal
controller
Bias
Vref
Sync 5
OSC
+
OVP
S_
Q
R
Feedbock 4
LEB
PWM
Ifb +
Vfb offset
Ids
Vds
REF.
+
TSD
150
Power-on
Reset
S
Q
R
Delay
+
VCC
3
Drain
1
UVLO
Ron
Roff
+
Rsense
22 GND
OCL
REF.
©2001 Fairchild Semiconductor Corporation
Rev.1.0.1



5Q0740RT
KA5Q0740RT
Absolute Maximum Ratings
(Ta=25°C, unless otherwise specified)
Parameter
Drain-source(GND) voltage (1)
Drain-Gate Voltage (RGS=1M)
Gate-source (GND) Voltage
Drain current pulsed (2)
Single pulsed avalanche energy (3)
Avalanche current (4)
Continuous drain current (Tc = 25°C)
Continuous drain current (TC=100°C)
Supply voltage
Analog input voltage range
Total Power Dissipation
Operating temperature
Thermal Resistance
Storage Temperature
Symbol
VDSS
VDGR
VGS
IDM
EAS
IAS
ID
ID
VCC
Vsync
VFB
PD(Watt H/S)
Derating
TOPR
Rthjc
TSTG
Notes:
1. Tj = 25°C to 150°C
2. Repetitive rating: Pulse width limited by maximum junction temperature
3. L = 30mH, VDD = 50V, RG = 25, starting Tj = 25°C
4. L = 13uH, starting Tj = 25°C
Value
400
400
±30
18.4
360
20
4.6
2.9
40
0.3 to 13V
0.3 to VCC
42
0.33
25 to +85
2.98
55 to +150
Unit
V
V
V
ADC
mJ
A
ADC
ADC
V
V
V
W
W/°C
°C
°C/W
°C
2





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