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5L0365R Schematic ( PDF Datasheet ) - Fairchild Semiconductor

Teilenummer 5L0365R
Beschreibung Fairchild Power Switch(FPS)
Hersteller Fairchild Semiconductor
Logo Fairchild Semiconductor Logo 




Gesamt 15 Seiten
5L0365R Datasheet, Funktion
www.fairchildsemi.com
KA5x03xx-SERIES
KA5H0365R, KA5M0365R, KA5L0365R
KA5H0380R, KA5M0380R, KA5L0380R
Fairchild Power Switch(FPS)
Features
• Precision Fixed Operating Frequency (100/67/50kHz)
• Low Start-up Current(Typ. 100uA)
• Pulse by Pulse Current Limiting
• Over Current Protection
• Over Voltage Protection (Min. 25V)
• Internal Thermal Shutdown Function
• Under Voltage Lockout
• Internal High Voltage Sense FET
• Auto-Restart Mode
Applications
• SMPS for VCR, SVR, STB, DVD & DVCD
• SMPS for Printer, Facsimile & Scanner
• Adaptor for Camcorder
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.
Included PWM controller integrates the fixed frequency
oscillator, the under voltage lock-out, the leading edge
blanking, the optimized gate turn-on/turn-off driver, the
thermal shutdown protection, the over voltage protection,
and the temperature compensated precision current sources
for the loop compensation and the fault protection circuitry.
Compared to a discrete MOSFET and a PWM controller or
an RCCsolution, a Fairchild Power Switch(FPS) can reduce
the total component count, design size and weight and at the
same time increase efficiency, productivity, and system
reliability. It has a basic platform well suited for the cost
effective design in either a flyback converter or a forward
converter
TO-220F-4L
Internal Block Diagram
1
1. GND 2. Drain 3. VCC 4. FB
#3 VCC
#4 FB
32V 5V Internal
Vref bias
Good
logic
5μA
7.5V
27V
OSC
9V
1mA
S
Q
R
2.5R
1R
+
L.E.B
0.1V
+
+ Thermal S/D
S
Q
R
OVER VOLTAGE S/D
Power on reset
©2003 Fairchild Semiconductor Corporation
SFET
#2 DRAIN
#1 GND
Rev.1.0.7






5L0365R Datasheet, Funktion
KA5X03XX-SERIES
Typical Performance Characteristics (Continued)
(KA5H0365R, KA5M0365R, KA5L0365R)
1.2
1.1
1.0
@ Notes :
0.9 1. VGS = 0V
2. ID = 250μA
0.8
-50
0 50 100
TJ, Junction Temperature [oC]
Figure 7. Breakdown Voltage vs. Temperature
150
2.5
2.0
1.5
1.0
@ Notes:
0.5
1. VGS = 10V
2. ID = 1.5 A
0.0
-50
0 50 100
T J, Junction Temperature [oC]
Figure 8. On-Resistance vs. Temperature
150
102
Operation in This Area
is Limited by R DS(on)
101
100 μs
10 μs
1 ms
10 ms
100 DC
10-1
10-2
100
@ Notes :
1. TC = 25 oC
2. TJ = 150 oC
3. Single Pulse
101 102
VDS , Drain-Source Voltage [V]
Figure 9. Max. Safe Operating Area
103
3.0
2.5
2.0
1.5
1.0
0.5
0.0
25 50 75 100 125
TC, Case Temperature [oC]
Figure 10. Max. Drain Current vs. Case Temperature
150
100
D=0.5
0.2
0.1
10- 1
0.05
0.02
0.01
single pulse
@ Notes :
1. ZθJC(t)=1.25 oC/W Max.
2. Duty Factor, D=t1/t2
3. TJM-TC=PDM*ZθJC(t)
10- 2
10- 5
10- 4
10- 3
10-2
10-1
t1 , Square Wave Pulse Duration
Figure 11. Thermal Response
100
[sec]
101
6

6 Page









5L0365R pdf, datenblatt
KA5X03XX-SERIES
Package Dimensions
TO-220F-4L
12

12 Page





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