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Fairchild Semiconductor Electronic Components Datasheet

7M0680 Datasheet

Power Switch

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FS7M0680
Fairchild Power Switch(FPS)
www.fairchildsemi.com
Features
• Precise Fixed Operating Frequency
• FS7M0680(66kHz)
• Pulse By Pulse Current Limiting
• Over Current Protection
• Over Load Protection
• Over Voltage Protection (Min. 25V)
• Internal Thermal Shutdown Function
• Under Voltage Lockout with Hysteresis
• Internal High Voltage Sense FET
• Latch Up Mode
• Soft Start
Description
The Fairchild Power Switch (FPS) product family is specially
designed for an off line SMPS with minimal external compo-
nents. The Fairchild Power Switch (FPS) consists of high volt-
age power SenseFET and current mode PWM controller. The
PWM controller includes integrated fixed oscillator, under volt-
age lock out, leading edge blanking block, optimized gate turn-
on/turn-off driver, thermal shut down protection, over voltage
protection, temperature compensated precise current sources for
loop compensation and fault protection circuit. Compared to
discrete MOSFET and PWM controller or ring choke converter
(RCC) solutions, the Fairchild Power Switch (FPS) can reduce
total cost, component count, size and weight simultaneously
increasing efficiency, productivity, and system reliability. It has
simple applications well suited for cost down design for flyback
converter or forward converter.
TO-3P-5L
1
1. DRAIN 2. GND 3. VCC 4. FB 5. S/S
Internal Block Diagram
#4
Feedback
Vsd
Vcc
Vovp
#5
Soft Start
OSC
Internal
Vias
#3
Vcc
Vref
UVLO
+
-
3R
Ifb
Vref Vref
R
Idelay
PWM
C om p arator
-
+
SQ
R
Vfb
offset
Vcc
Reset
SQ
R
Delay
120ns
Ron
Roff
+
- Vocp Rsense
Thermal
Shutdown
©2003 Fairchild Semiconductor Corporation
#1
DRAIN
#2
Source
GND
Rev.1.0.0


Fairchild Semiconductor Electronic Components Datasheet

7M0680 Datasheet

Power Switch

No Preview Available !

FS7M0680
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)
Maximum 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
Note:
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
3.8
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 7M0680
Description Power Switch
Maker Fairchild Semiconductor
Total Page 16 Pages
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