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KA2S0680 Datasheet

  • KA2S0680

  • SPS

  • 8頁(yè)

  • FAIRCHILD

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SPS
KA2S0680
SPS
TO-3P-5L
The SPS product family is specially designed for an off line
SMPS with minimal external component. The SPS consist of
high voltage Power SenseFET and current mode PWM IC.
Included control IC features a trimmed oscillator, under
voltage lock out, leading edge blanking, optimized gate turn-
on/turn-off driver, thermal shut down protection, over voltage
protection, and temperature compensated precision current
source for loop compensation and fault protection circuitry.
Compared to discrete MOSFET and controller or RCC
switching converter solution, a SPS can reduce total
component count, design size, 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.
1.DRAIN 2. GND 3. V
CC
4. FB 5. Sync
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Wide operating frequency range up to 150kHz
Pulse by pulse over current limiting
Over load protection
Over voltage protection (Min. 23V)
Internal thermal shutdown function
Under voltage lockout
Internal high voltage sense FET
External sync terminal
Latch up Mode
ORDERING INFORMATION
Device
KA2S0680
Package
TO-3P-5L
Rating
800V, 6A
Topr (擄C)
擄
鈭?5擄C
to +85擄C
BLOCK DIAGRAM
#3 V
CC
32V
5V
Vref
鈭?/div>
5V
+
6.4V
#4 FB
2碌A(chǔ)
1mA 2.5R
1R
9V
+
7.5V
鈭?/div>
+
25V
鈭?/div>
Thermal S/D
OVER VOLTAGE S/D
鈭?/div>
+
OSC
S
R
L.E.B
0.1V
S
R
Q
#2 GND
Q
Good
logic
Internal
bias
#1 DRAIN
SFET
#5 Sync
Power on reset
Rev. B
1
漏
1999 Fairchild Semiconductor Corporation

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