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Fairchild Semiconductor Electronic Components Datasheet

KA2S0680B Datasheet

Power Switch

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KA2S0680B
Fairchild Power Switch(SPS)
www.fairchildsemi.com
Features
• Wide operating frequency range up to 150KHz
• Pulse by pulse over current limiting
• Over load protection
• Over voltage protection (Min. 23V)
www.DataSheet4U.coImnternal thermal shutdown function
• Under voltage lockout
• Internal high voltage sense FET
• External sync terminal
• Latch up Mode
Description
The SPS product family is specially designed for an off-line
SMPS with minimal external components. The SPS consist of
high voltage power SenseFET and current mode PWM Control-
ler IC. PWM controller features integrated fixed oscillator,
under voltage lockout, leading edge blanking, optimized gate
turn-on/turn-off driver, thermal shut down protection, over volt-
age protection, temperature compensated precision current
sources for loop compensation and fault protection circuit.
Compared to discrete MOSFET and controller or RCC switch-
ing 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 design in monitor power supply.
TO-3P-5L
1. DRAIN 2. GND 3. VCC 4. FB 5. Sync
Internal Block Diagram
#3 VCC
#5 Sync
#4 FB
32V
5V +
6.4V
2µA 1mA 2.5R
9V 1R
+
5V
Vref
Good
logic
OSC
+
S
Q
R
L.E.B
0.1V
Internal
bias
7.5V
+
Thermal S/D
S
Q
R
25V
OVER VOLTAGE S/D
Power on reset
©2001 Fairchild Semiconductor Corporation
SFET
#1 DRAIN
#2 GND
Rev.1.0.1


Fairchild Semiconductor Electronic Components Datasheet

KA2S0680B Datasheet

Power Switch

No Preview Available !

KA2S0680B
Absolute Maximum Ratings
Parameter
Maximum Drain 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)
www.DataSheet4U.cMomaximum Supply voltage
Input voltage range
Total power dissipation
Symbol
VD,MAX
VDGR
VGS
IDM
EAS
IAS
ID
ID
VCC,MAX
VFB
PD
Derating
Operating ambient temperature
Storage temperature
TA
TSTG
Notes:
1. Tj=25°C to 150°C
2. Repetitive rating: Pulse width limited by maximum junction temperature
3. L=24mH, VDD=50V, RG=25, starting Tj=25°C
4. L=13µH, starting Tj=25°C
Value
800
800
±30
24.0
455
20
6.0
4.0
30
0.3 to VSD
150
1.21
25 to +85
55 to +150
Unit
V
V
V
ADC
mJ
A
ADC
ADC
V
V
W
W/°C
°C
°C
2


Part Number KA2S0680B
Description Power Switch
Maker Fairchild Semiconductor
Total Page 12 Pages
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