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. 661-5406
Mfr. Part No.UC3854DW
PHP164.93
Each
units
118 kHz 1.5mA Power Factor Pre-Regulator Circuit 14µA - 10 mA Yes Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm 2.35mm 10.28mm 35 V
RS Stock No. 145-5765
Mfr. Part No.UC3854DW
PHP163.611
Each (In a Tube of 40)
units
118 kHz 1.5mA Power Factor Pre-Regulator Circuit 14µA - 10 mA Yes Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm 2.35mm 10.28mm 35 V
RS Stock No. 661-5162
Mfr. Part No.UC2854BN
PHP297.90
Each
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. 121-8962
Mfr. Part No.UC3854N
PHP181.618
Each (In a Tube of 25)
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. 162-6064
Mfr. Part No.UCC28019P
PHP64.971
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. 620-0767
Mfr. Part No.UC3854N
PHP214.032
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. 162-6031
Mfr. Part No.UC2854BN
PHP253.134
Each (In a Tube of 25)
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. 145-0095
Mfr. Part No.UCC28019D
PHP72.03
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. 162-6057
Mfr. Part No.UC3855BDW
PHP529.474
Each (In a Tube of 25)
units
230 kHz 0.15mA Power Factor Pre-Regulator Circuit - 1.5mA 25 mA Yes Surface Mount SOIC 20 12.8 x 7.52 x 2.35mm 2.35mm 12.8mm -
RS Stock No. 121-9151
Mfr. Part No.UC2854DW
PHP160.65
Each (In a Tube of 40)
units
118 kHz 1.5mA Power Factor Pre-Regulator Circuit 14µA - 10 mA Yes Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm 2.35mm 10.28mm 35 V
RS Stock No. 661-5550
Mfr. Part No.UCC28070PW
PHP213.52
Each
units
10 → 300 kHz 20mA Power Factor Controller -0.03mA 30µA 20 mA Yes Surface Mount TSSOP 20 6.5 x 4.4 x 1.15mm 1.15mm 6.5mm 21 V
RS Stock No. 169-5601
Mfr. Part No.UCC2818AN
PHP208.43
Each (In a Tube of 25)
units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit 900000µA 1200mA 6 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 18 V
RS Stock No. 922-3482
Mfr. Part No.UCC2818D
PHP213.729
Each (In a Tube of 40)
units
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RS Stock No. 620-0751
Mfr. Part No.UC3854BN
PHP268.054
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. 661-6005
Mfr. Part No.UCC3817N
PHP197.05
Each
units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 17 V
RS Stock No. 661-5392
Mfr. Part No.UC3854BDW
PHP236.53
Each
units
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm 2.35mm 10.28mm 20 V
RS Stock No. 661-5670
Mfr. Part No.UCC2818D
PHP213.09
Each
units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 17 V
RS Stock No. 661-5661
Mfr. Part No.UCC2818AN
PHP240.27
Each
units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit 900000µA 1200mA 6 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 18 V
RS Stock No. 121-9158
Mfr. Part No.UCC3818D
PHP178.50
Each (In a Tube of 40)
units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 17 V
RS Stock No. 922-3467
Mfr. Part No.UC3854BDW
PHP168.756
Each (In a Tube of 40)
units
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