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
MYR3.66
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. 714-7844
Mfr. Part No.L4981AD
MYR15.19
Each
units
115 kHz 0.3mA Power Factor Controller 10mA 20000µA 16 mA - Surface Mount SOIC 20 13 x 7.6 x 2.35mm 2.35mm 13mm 19.5 V
RS Stock No. 920-8913
Mfr. Part No.L4981AD
MYR12.363
Each (In a Tube of 40)
units
115 kHz 0.3mA Power Factor Controller 10mA 20000µA 16 mA - Surface Mount SOIC 20 13 x 7.6 x 2.35mm 2.35mm 13mm 19.5 V
RS Stock No. 202-5524
Mfr. Part No.STNRGPF01TR
MYR18.048
Each (On a Reel of 2500)
units
1 MHz 28mA Power Factor Controller 7.75mA 7.75mA 34 mA - - TSSOP38 38 - - - 5.5 V
RS Stock No. 188-8276
Mfr. Part No.L6563HTR
MYR2.816
Each (On a Reel of 2500)
units
70 kHz 150µA Power Factor Controller 4mA 4.5mA 6 mA - Surface Mount SO 16 10 x 4 x 1.5mm 1.5mm 10mm 22.5 V
RS Stock No. 168-5829
Mfr. Part No.L6562AD
MYR1.981
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
RS Stock No. 202-5525
Mfr. Part No.STNRGPF01TR
MYR33.405
Each (In a Pack of 2)
units
1 MHz 28mA Power Factor Controller 7.75mA 7.75mA 34 mA - - TSSOP38 38 - - - 5.5 V
RS Stock No. 445-832
Mfr. Part No.L6562AD
MYR3.308
Each (In a Pack of 5)
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
RS Stock No. 168-5787
Mfr. Part No.L4981BD
MYR10.116
Each (In a Tube of 40)
units
115 kHz 0.3mA Power Factor Controller 10mA 20000µA 16 mA - Surface Mount SOIC 20 13 x 7.6 x 2.35mm 2.35mm 13mm 19.5 V
RS Stock No. 379-987
Mfr. Part No.L4981BD
MYR11.92
Each
units
115 kHz 0.3mA Power Factor Controller 10mA 20000µA 16 mA - Surface Mount SOIC 20 13 x 7.6 x 2.35mm 2.35mm 13mm 19.5 V
New
RS Stock No. 218-4858
Mfr. Part No.STNRG012TR
MYR19.01
Each (In a Pack of 2)
units
50 kHz 2mA Digital -1.1mA 1.3mA 2 mA - - SoC 20 - - - 19 V
RS Stock No. 202-5526
Mfr. Part No.STNRGPF12TR
MYR14.193
Each (On a Reel of 2500)
units
1 MHz 28mA Power Factor Controller 34mA 7.75mA 34 mA - - TSSOP38 38 - - - 6.5 V
RS Stock No. 168-5788
Mfr. Part No.L6562D
MYR1.932
Each (In a Tube of 100)
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. 175-1120
Mfr. Part No.STNRG011TR
MYR12.48
Each (In a Pack of 5)
units
- - Power Factor Controller - - - - - - - - - - -
RS Stock No. 380-040
Mfr. Part No.L6563
MYR4.82
Each (In a Pack of 10)
units
- 0.05mA Power Factor Controller -5mA 4500µA 0.09 mA Yes Surface Mount SOIC 14 8.75 x 4 x 1.65mm 1.65mm 8.75mm 22 V
RS Stock No. 168-8024
Mfr. Part No.L6562ATD
MYR2.35
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. 168-5789
Mfr. Part No.L6563
MYR4.82
Each (In a Tube of 50)
units
- 0.05mA Power Factor Controller -5mA 4500µA 0.09 mA Yes Surface Mount SOIC 14 8.75 x 4 x 1.65mm 1.65mm 8.75mm 22 V
RS Stock No. 829-0006
Mfr. Part No.L6562ATD
MYR3.434
Each (In a Pack of 10)
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. 686-5005
Mfr. Part No.L6562DTR
MYR3.066
Each (In a Pack of 5)
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. 165-7479
Mfr. Part No.L6562ADTR
MYR1.975
Each (On a Reel of 2500)
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