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I3002 Schematic ( PDF Datasheet ) - Interpion semiconductor

Teilenummer I3002
Beschreibung Power Factor Correction
Hersteller Interpion semiconductor
Logo Interpion semiconductor Logo 




Gesamt 11 Seiten
I3002 Datasheet, Funktion
www.DataSheet4U.com
IP3002 / I3002
Power Factor Correction
DESCRIPTIONS
It is adaptable to a discontinuous mode of operation
that the IP3002 is PFC (Power Factor Correction)
controller for the high density switching mode power
supply and electronic ballast systems. The bulky
external components are eliminated in the internal
start-up circuits, though it is taken in independent
boost converter operation. What is more, instead of
the external components, the low pass filter is
mounted in internal current sense block. Internal
clamping of the error amplifier and multiplier output
improve turn on overshoot characteristics and current
limiting. The one of features is able to prevent abnor-
mal condition, open lamp & over voltage.
8DIP
8SOP
APPLICATIONS
Switching Mode Power Supply (SMPS)
Electronics Ballast
FEATURES
Very Precise Adjustable Output OVP (Dynamic &
Static OVP Function)
Extremely Low Start-Up Current
Very Low Operating Supply Current
Internal Start-Up Timer
Current Sense Filter On Chip
Disable Function
Extremely Minimized External Part Counts
8DIP / 8SOP package
ORDER INFORMATION
Device
IP3002
I3002
Package
8DIP
8SOP
Operating Temp
-25°C ~ 125°C
BLOCK DIAGRAM
April. 2004
http://www.interpionsemi.com
-1-






I3002 Datasheet, Funktion
IP3002 / I3002
Power Factor Correction
APPLICATION INFORMATIONS
1. Main Inductor
L = h * ( VO - VP ) * VP2 / ( 4 * VO * PO * f )
Where,
h: Efficiency ( 0.95)
VO: DC Link Voltage
VP: Input Peak Voltage
PO: Output Power
f: Switching Frequency
2. Resistor for Current Sense
RS = 1.6 / ILP
Where,
ILP: Inductor Peak Current
3. Resistors for Multiplier
RML < 0.69 * RMU / ( VP 0.69 )
Where,
RMU: Upper Resistor for Multiplier Input
RML: Lower Resistor for Multiplier Input
4. Resistors for Error Amplifier
REL = 2.5 * REU / ( VO - 2.5 )
Where,
REU: Upper Resistor for Error Amplifier Inverting Input
REL: Lower Resistor for Error Amplifier Inverting Input
April. 2004
http://www.interpionsemi.com
-6-

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