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PDF FS6S1265REYDTU Data sheet ( Hoja de datos )
| Número de pieza | FS6S1265REYDTU | |
| Descripción | Fairchild Power Switch(FPS) | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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FS6S1265RE
Fairchild Power Switch(FPS)
www.fairchildsemi.com
Features
• Wide Operating Frequency Range Up to 150kHz
• Lowest Cost SMPS Solution
• Lowest External Components
• Low Start up Current (Max:170uA)
• Low Operating Current (Max:15mA)
• Internal High Voltage SenseFET
• Built-in Auto Restart Circuit
• Over Voltage Protection (Auto Restart Mode)
• Over Load Protection (Auto Restart Mode)
• Over Current Protection (Auto Restart Mode)
• Internal Thermal Protection (Auto Restart Mode)
• Pulse By Pulse Over Current Limiting
• Internal Burst Mode Controller for Stand-by Mode
• Under Voltage Lockout With Hysteresis
• External Sync. Terminal
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, 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 RCC switching converter
solution, a Fairchild Power Switch(FPS) can reduce 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 cost effective monitor
power supply.
TO-3P-5L
1
1. Drain 2. Gnd 3. VCC 4. FeedBack 5. Sync.
Internal Block Diagram
Vref Vpp=5.8/7.2V
SoftStart
& Sync
5
Vfb
Vth=1V
Vcc
Vth=11V/12V
OSC
Vref
Burst mode
controller
Feedback 4
Ifb
Vref Vcc
2.5R
R
Idelay
Vth=7.5V
Vcc
Vth=30V
OLP
OVP
UVLO Reset
(Vcc=9V)
SQ
R
Internal
Bias
Vref
UVLO
S
Q
R
PWM
Vcc Drain
31
Ron
Roff
Vfb Offset
OCL Filter
(130nsec)
TS
(Tj=D160℃)
Rsenese
Vth=1V
2 GND
©2003 Fairchild Semiconductor Corporation
Rev.1.0.1
1 page  
Typical Performance Characteristics
0.150 [mA] Start Up Current vs. Temp
0.125
0.100
0.075
0.050
-25 0 25 50 75 100 125 150
Figure 1. Start Up Current vs. Temp.
16.0 [V] Start Threshold Voltage vs. Temp
15.5
15.0
14.5
14.0
-25 0 25 50 75 100 125 150
Figure 3. Start Threshold Voltage vs. Temp.
[KHz] Initial Freqency vs. Temp
28
27
26
25
24
23
22
-25 0 25 50 75 100 125 150
Figure 5. Initial Frequency vs. Temp.
FS6S1265RE
[mA] Operating Current vs. Temp
11.0
10.5
10.0
9.5
9.0
-25 0 25 50 75 100 125 150
Figure 2. Operating Current vs. Temp.
[V] Stop Threshold Voltage vs. Temp
10.0
9.5
9.0
8.5
8.0
-25 0 25 50 75 100 125 150
Figure 4. Stop Threshold Voltage vs. Temp.
[%]
96.0
Maximum Duty vs. Temp
95.5
95.0
94.5
94.0
-25 0 25 50 75 100 125 150
Figure 6. Maximum Duty vs. Temp.
5
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