Attention !!! We are operating and shipping all Orders. But due to COVID-19 related restrictions, limited staff and reduced working time dispatches may be delayed.
Thanks for your understanding & Support. Be kind and stay safe!!
  • UC3854 High Power Factor Preregulator

Product Images are shown for illustrative purposes only and may differ from actual product.

UC3854 High Power Factor Preregulator

  • Stock: Out Of Stock
  • SKU: 0819 | DAA470
  • Rs. 182.90 (inc GST)
    Rs.155.00 + GST

    Qty :

GST Invoice on all Purchase. So you will be eligible to take input tax credit.

IF component not in Stock or require more quantity or want to buy in bulk e-mail us your requirements on: dnatechindia "at" gmail.com.

Shipping : Due to Covid-19 situation delivery will be affected. Delivery period due to covid-19 issue will be from 4 - 12 days depending upon your location.

UC3854 High Power Factor Preregulator

The UC3854 provides active power factor correction for power systems that otherwise would draw non-sinusoidal current from sinusoidal power lines. This device implements all the control functions necessary to build a power supply capable of optimally using available power-line current while minimizing line-current distortion. To do this, the UC3854 contains a voltage amplifier, an analog multiplier/divider, a current amplifier, and a fixed-frequency PWM. In addition, the UC3854 contains a power MOSFET compatible gate driver, 7.5V reference, line anticipator, load-enable comparator, low-supply detector, and over-current comparator.

The UC3854 uses average current-mode control to accomplish fixed frequency current control with stability and low distortion. Unlike peak current-mode, average current control accurately maintains sinusoidal line current without slope compensation and with minimal response to noise transients. The UC3854’s high reference voltage and high oscillator amplitude minimize noise sensitivity while fast PWM elements permit chopping frequencies above 200kHz. The UC3854 can be used in single and three phase systems with line voltages that vary from 75 to 275 volts and line frequencies across the 50Hz to 400Hz range. To reduce the burden on the circuitry that supplies power to this device, the UC3854 features low starting supply current. These devices are available packaged in 16-pin plastic and ceramic dual in-line packages, and a variety of surface-mount packages.

Features of UC3854

  • Control Boost PWM to 0.99 Power Factor

  • Limit Line Current Distortion To <5%

  • World-Wide Operation Without Switches

  • Feed-Forward Line Regulation

  • Average Current-Mode Control

  • Low Noise Sensitivity

  • Low Start-Up Supply Current

  • Fixed-Frequency PWM Drive

  • Low-Offset Analog Multiplier/Divider

  • 1A Totem-Pole Gate Driver

  • Precision Voltage Reference

Reviews (0)

Write a review

Note: HTML is not translated!
    Bad           Good

NEW Products

Product Page : New Products

TPS40210 4.5 to 52 Volts Input Current Mode Boost Controller

TPS40210 4.5 to 52 Volts Input Current Mode Boost Controller

TPS40210 4.5 to 52 Volts Input Current Mode Boost ControllerTPS40210 4.5 to 52 Volts Input Current M..

Rs.379.96 (inc GST)
Rs.322.00 + GST

SKU: 3177 | DAD068
Stock: 2
PIC18F46K22-I/PT Microcontroller (TQFP Package)

PIC18F46K22-I/PT Microcontroller (TQFP Package)

PIC18F46K22-I/PT MicrocontrollerPIC18F46K22 LOW Power, High Performance Microcontroller from Microch..

Rs.326.86 (inc GST)
Rs.277.00 + GST

SKU: 3174 | DAE372
Stock: 20
PIC16F1939-I/PT Microcontroller (TQFP Package)

PIC16F1939-I/PT Microcontroller (TQFP Package)

PIC16F1939-I/PT MicrocontrollerPIC16F1939 8-Bit CMOS Microcontroller from MicrochipPIC16f1939 is a v..

Rs.320.96 (inc GST)
Rs.272.00 + GST

SKU: 3175 | DAC698
Stock: 120
PIC16f1829-I/SO Microcontroller (SMD Package)

PIC16f1829-I/SO Microcontroller (SMD Package)

PIC16F1829-I/SO MicrocontrollerPIC16F1829 8-Bit CMOS Flash Microcontroller from Microchip with Nanow..

Rs.259.60 (inc GST)
Rs.220.00 + GST

SKU: 3176 | DAD090
Stock: 52

Have You Seen

Product Page : Have You Seen

UV LED 2835 SMD Package (395nm)

UV LED 2835 SMD Package (395nm)

UV LED 2835 package 395nm390-400 nm wavelength SMD 2835 package Ultraviolet LED This UV led have a w..

Rs.5.07 (inc GST)
Rs.4.30 + GST

SKU: 3154 | DAD031
Stock: 3000
MAX6675ISA K-Thermocouple to Digital Converter

MAX6675ISA K-Thermocouple to Digital Converter

MAX6675ISA K-Thermocouple to Digital Converter ICMAX6675 Cold Junction Compensated K-Thermocouple to..

Rs.536.90 (inc GST)
Rs.455.00 + GST

SKU: 3152 | DAE837
Stock: 10
HIP4082IPZ H-Bridge FET Driver

HIP4082IPZ H-Bridge FET Driver

HIP4082IPZ H-Bridge N-Channel MOSFET Driver ICHIP4082 80V, 1.25A Peak Current H-Bridge N-Channel MOS..

Rs.206.50 (inc GST)
Rs.175.00 + GST

SKU: 3153 | DAE375
Stock: 5
0.56" Blue CA 7 Segment Display

0.56" Blue CA 7 Segment Display

0.56 Inch Blue Common Anode 7-Segment Display0.56" Blue 7-Segment Display Common Anode (CA)This is a..

Rs.21.24 (inc GST)
Rs.18.00 + GST

SKU: 3144 | DAE930
Stock: 100

Related Products

UC3710 High Current FET Driver

UC3710 High Current FET Driver

UC3710 High Current FET DriverThe UC3710 family of FET drivers is made with a high-speed Schottky pr..

Rs.354.00 (inc GST)
Rs.300.00 + GST

SKU: 0844 | DAA467
Stock: 2