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Teilenummer | I3002 |
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Beschreibung | Power Factor Correction | |
Hersteller | Interpion semiconductor | |
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Gesamt 11 Seiten 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-
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-
6 Page | ||
Seiten | Gesamt 11 Seiten | |
PDF Download | [ I3002 Schematic.PDF ] |
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