Fairchild FPS Series User Manual

6
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.fair
childsemi.com/fps
FPS
™
Design Guide
Optimally Integrated Solution for Off-Line Switch Mode Power Supplies
• Integrated features in a single package
– SenseFET
– PWM controller
– Gate drive circuit
– Pr
ecise fr
equency oscillator
• Additional functions
– Startup circuit with soft start
– Frequency modulation
– Burst operation
• Protection function
– Over load protection
– Over voltage protection
– Over current protection
– Pulse by pulse cur
r
ent limit
– Over temperature protection
+
–
~~
AC
Input
Vo
Softstart
Frequency
Setting
Current
Sensing
MOSFET
Drive
PWM
Controller
Startup
Resistor
MOSFET
UC3842
Comp
Vref
RtCt
Isense
Vfb
Vcc
Out
GND
FPS
™
Integrated Solution

Fairchild FPS Series Specifications

General

Brand	Fairchild
Model	FPS Series
Category	Switch
Language	English