Power Factor Correction

Power factor correction ICs (integrated circuits) are devices designed to improve the efficiency of an electronic circuit that contain other devices with lower power factor. Power factor is the measurement of the efficiency of input power. Power factor correction (PFC) is designed to improve the power quality by improving this efficiency. They feature capacitors or inductors which are used to counteract the inefficiencies of motors and machines.

How is it power factor calculated?

Power factor is the Real Power minus Reactive Power. Real power is the power required to carry out the task. Reactive power is the excess power that is used, but is not required by the task. The goal is for power factor to be 100% in its efficiency, or 1pf. Power factor can be calculated by Active (or true) power divided by Apparent power. Reactive operates at a right angle to True power.

Why use power factor correction ICs?

Power factor correction can be used in many applications to help financially. This is achieved through reducing power consumption or reducing the unnecessary Reactive Power.

Where is PFC used?

  • Computers
  • Power supplies
  • Lighting
  • Induction welders
  • Electrical motors

...
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Description Price Maximum Switching Frequency Start-up Supply Current IC Type Maximum Source Current Maximum Sink Current Maximum Supply Current Zero Power Detection Mounting Type Package Type Pin Count Dimensions Height Length Maximum Operating Supply Voltage
RS Stock No. 168-7319
Mfr. Part No.L6562N
$1.521
Each (In a Tube of 50)
units
- 0.04mA - 10mA 10000µA 16 mA - Through Hole PDIP 8 10.92 x 6.6 x 3.32mm 3.32mm 10.92mm 22 V
RS Stock No. 168-8024
Mfr. Part No.L6562ATD
$1.676
Each (In a Tube of 100)
units
- 60µA Power Factor Controller -5mA 4.5mA 5.5 mA - Surface Mount SOIC 8 5 x 4 x 1.65mm 1.65mm 5mm 22.5 V
RS Stock No. 121-6379
Mfr. Part No.NCP1654BD133R2G
Brandonsemi
$0.818
Each (On a Reel of 2500)
units
146 kHz 75µA Power Factor Controller 100mA 100mA 6 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 20 V
RS Stock No. 917-5724
Mfr. Part No.MP44010HS-LF
$3.498
Each (In a Pack of 5)
units
70 kHz 40µA Power Factor Controller -1mA 5.5mA 2.5 mA Yes Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 22 V
RS Stock No. 802-1759
Mfr. Part No.NIS5132MN2TXG
Brandonsemi
$1.624
Each (In a Pack of 10)
units
1 MHz - Power Factor Controller - -25µA 3.6 A - Surface Mount DFN 10 3 x 3 x 0.95mm 0.95mm 3mm 25 V
RS Stock No. 165-5740
Mfr. Part No.IR1155STRPBF
BrandInfineon
$1.533
Each (On a Reel of 2500)
units
200 kHz 175µA Power Factor Controller 90µA -20µA 13 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 19 V
RS Stock No. 172-8988
Mfr. Part No.NCP1632DR2G
Brandonsemi
$2.751
Each (In a Pack of 10)
units
130 kHz 100µA Power Factor Controller 500mA 800mA 7 mA - Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 10.4 V
RS Stock No. 195-2491
Mfr. Part No.NIS5020MT2TXG
Brandonsemi
$2.32
Each (In a Pack of 25)
units
- - Power Factor Controller - - 10 A - Surface Mount WDFN 10 3 x 3 x 0.75mm 0.75mm 3mm 18 V
RS Stock No. 181-1941
Mfr. Part No.FPAM30LH60
Brandonsemi
$62.08
Each
units
20 kHz - Power Factor Pre-Regulator Circuit - 1mA 2.65 mA - Through Hole S32EA 32 60.5 x 31.5 x 7.3mm 7.3mm 60.5mm 253 Vrms
RS Stock No. 195-2493
Mfr. Part No.NIS5820MT1TXG
Brandonsemi
$2.397
Each (In a Pack of 25)
units
- - Power Factor Controller - - 8 A - Surface Mount WDFN 10 3 x 3 x 0.75mm 0.75mm 3mm 18 V
New
RS Stock No. 229-2091
Mfr. Part No.STNRG011
$3.96
Each (In a Pack of 2)
units
- - LLC Resonant Controller - 1300mA 0.5 mA - - SOIC 20 - - - 19 V
RS Stock No. 146-4525
Mfr. Part No.PFS7636H
$4.892
Each (In a Tube of 30)
units
123 kHz - Power Factor Controller - - 1.12 mA Yes Through Hole eSIP-16D 16 16.59 x 2.06 x 8.25mm 8.25mm 16.59mm 15 V
RS Stock No. 380-012
Mfr. Part No.L6562D
$1.176
Each (In a Pack of 10)
units
- 0.04mA Power Factor Controller 10mA 10000µA 16 mA - Surface Mount SOIC 8 5 x 4 x 1.25mm 1.25mm 5mm 22 V
RS Stock No. 620-0767
Mfr. Part No.UC3854N
$9.076
Each (In a Pack of 5)
units
118 kHz 1.5mA Power Factor Pre-Regulator Circuit 14µA - 10 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 35 V
RS Stock No. 809-5021
Mfr. Part No.FAN6961SZ
Brandonsemi
$1.058
Each (In a Pack of 10)
units
60 kHz 20µA Power Factor Controller 800µA 20µA 6 mA Yes Surface Mount SOP 8 5 x 4 x 1.5mm 1.5mm 5mm 30 V
RS Stock No. 620-0745
Mfr. Part No.UC3854AN
$8.272
Each (In a Pack of 5)
units
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 20 V
RS Stock No. 831-2718
Mfr. Part No.IR1155STRPBF
BrandInfineon
$3.27
Each (In a Pack of 2)
units
200 kHz 175µA Power Factor Controller 90µA -20µA 13 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 19 V
RS Stock No. 188-8535
Mfr. Part No.L6562ATDTR
$1.878
Each (In a Pack of 25)
units
70 kHz 60µA Power Factor Controller -5mA 4.5mA 5.5 mA - Surface Mount SO 8 5 x 4 x 1.65mm 1.65mm 5mm 22.5 V
New
RS Stock No. 221-6627
Mfr. Part No.NCP1655ADR2G
Brandonsemi
$1.184
Each (On a Reel of 2500)
units
130 kHz - Power Factor Correction 500mA 800mA 4 mA - - SOIC 9 - - - 35 V
RS Stock No. 168-5829
Mfr. Part No.L6562AD
$0.951
Each (In a Tube of 100)
units
- 0.03mA Power Factor Controller -5mA 4500µA 0.06 mA Yes Surface Mount SOIC 8 5 x 4 x 1.25mm 1.25mm 5mm 22.5 V