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Fairchild - Fairchild Power Switch(FPS)

Numéro de référence KA5S
Description Fairchild Power Switch(FPS)
Fabricant Fairchild 
Logo Fairchild 





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KA5S fiche technique
www.fairchildsemi.com
KA5S-SERIES
KA5S0765C/KA5S09654QT/KA5S0965/
KA5S12656/KA5S1265
Fairchild Power Switch(FPS)
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:12mA)
• Internal High Voltage SenseFET
• Over Voltage Protection With Latch Mode (Min23V)
• Over Load Protection With Latch Mode
• Over Current Protection With Latch Mode
• Internal Thermal Protection With Latch Mode
• Pulse By Pulse Over Current Limiting
• Under Voltage Lockout With Hysteresis
• External Sync. Terminal
TO-3P-5L
1
TO-220F-5L
TO-220-5L
11
1. Drain 2. Gnd 3. VCC 4. FeedBack 5. Sync.
Internal Block Diagram
VCC
3
Soft Start
& Sync
Feedback
VCC UVLO
+
-
15/9V
Vref
5
VREF
4
0.95mA
4µA
-
Vth.sy
+
7V
6V
2.5V
VREF
VCC
R
2.5V
OSC CLK
-
+
Voffset
+
-
Bias
VREF UVLO
SQ
R
OLP
(Vfb=7.5V)
TSD
(Tj=160°C)
OVP
(VCC=25V)
1µs Window
Open Circuit
S
Q
R
Shutdown Latch
OCP
(VS=1.1V)
Power-on Reset
(VCC=6.5V)
Drain
1
SenseFET
VS
Rsense
2 GND
©2001 Fairchild Semiconductor Corporation
Rev.1.0.2

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