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. 168-5820
Mfr. Part No.L6562AN
$1.124
Each (In a Tube of 50)
units
- 0.03mA Power Factor Controller -5mA 4500µA 0.06 mA Yes Through Hole PDIP 8 10.92 x 6.6 x 3.32mm 3.32mm 10.92mm 22.5 V
RS Stock No. 162-6064
Mfr. Part No.UCC28019P
$2.16
Each (In a Tube of 50)
units
68.3 kHz 0.1mA Power Factor Controller -0.038mA 38µA 10 mA Yes Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 4.57mm 9.81mm 22 V
RS Stock No. 166-2386
Mfr. Part No.FAN6961SZ
$0.558
Each (On a Reel of 2500)
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. 786-6529
Mfr. Part No.NCP1654BD65R2G
$1.428
Each (In a Pack of 5)
units
72 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. 162-9513
Mfr. Part No.NCP1654BD65R2G
$0.696
Each (On a Reel of 2500)
units
72 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. 920-8913
Mfr. Part No.L4981AD
$4.594
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. 917-5724
Mfr. Part No.MP44010HS-LF
$3.52
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. 865-1227
Mfr. Part No.FAN9673Q
$7.97
Each (In a Pack of 2)
units
40 kHz 80µA Power Factor Controller 50µA -40µA, -35 μA 7 mA Yes Surface Mount LQFP 32 9 x 7 x 1.45mm 1.45mm 9mm 30 V
RS Stock No. 178-4568
Mfr. Part No.NCP1622DCCSNT1G
$0.906
Each (In a Pack of 10)
units
50 kHz 70µA Power Factor Controller 277µA 42µA 3 mA - Surface Mount TSOP 6 3.1 x 1.7 x 1mm 1mm 3.1mm 30 V
RS Stock No. 172-3387
Mfr. Part No.NCP1622BECSNT1G
$1.05
Each (In a Pack of 25)
units
50 kHz 70µA Power Factor Controller 277µA 42µA 800 mA Yes Surface Mount TSOP 6 3.1 x 1.7 x 1mm 1mm 3.1mm 30 V
RS Stock No. 404-342
Mfr. Part No.UCC28019D
$1.792
Each (In a Pack of 5)
units
68.3 kHz 0.1mA - -0.038mA 38µA 10 mA Yes Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 1.58mm 4.9mm 22 V
RS Stock No. 145-0095
Mfr. Part No.UCC28019D
$1.985
Each (In a Tube of 75)
units
68.3 kHz 0.1mA Power Factor Controller -0.038mA 38µA 10 mA Yes Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 1.58mm 4.9mm 22 V
RS Stock No. 188-8553
Mfr. Part No.L6563HTR
$1.78
Each (In a Pack of 10)
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. 195-2488
Mfr. Part No.NIS5020MT1TXG
$1.12
Each (On a Reel of 3000)
units
- - Power Factor Controller - - 10 A - Surface Mount WDFN 10 3 x 3 x 0.75mm 0.75mm 3mm 18 V
RS Stock No. 145-3378
Mfr. Part No.MC33368DG
$2.40
Each (In a Tube of 48)
units
50 kHz 25mA Power Factor Controller 30µA 30µA 20 mA Yes Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 16 V
RS Stock No. 166-1622
Mfr. Part No.FAN6982MY
$0.798
Each (On a Reel of 2500)
units
75 kHz 80µA Power Factor Controller 50µA -35µA - - Surface Mount SOP 14 8.75 x 4 x 1.5mm 1.5mm 8.75mm 22 V
RS Stock No. 178-4353
Mfr. Part No.NCP1622DCCSNT1G
$0.583
Each (On a Reel of 3000)
units
50 kHz 70µA Power Factor Controller 277µA 42µA 3 mA - Surface Mount TSOP 6 3.1 x 1.7 x 1mm 1mm 3.1mm 30 V
RS Stock No. 121-6379
Mfr. Part No.NCP1654BD133R2G
$0.669
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. 379-987
Mfr. Part No.L4981BD
$4.44
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. 181-1883
Mfr. Part No.FPAM50LH60G
$60.867
Each (In a Tube of 48)
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