Product Images are shown for illustrative purposes only and may differ from actual product.
UC3854 High Power Factor Preregulator
- Stock: 8
- SKU: 819 | DAA470
-
Rs. 214.76 (inc GST)
Rs.182.00 + GSTQty :
GST Invoice: Available for all purchases — eligible for input tax credit.
Delivery: 2–8 days across India. No MOQ required.
Bulk Orders: Need more quantity or not in stock? Email: dnatechindia [at] gmail.com
Import Service: We import a wide range of electronic components on request.
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
Frequently Asked Questions
Do you provide a GST bills?
What is your return / replacement policy?
Where are you located / where do you ship from?
What payment methods do you accept?
What details should I send for a bulk quote?
Are components original / new?
NEW Products
Product Page : New Products
Nextion Discovery NX4832F035 3.5" Resistive Touch Display
Nextion NX4832f035 3.5" Discovery Resistive Touchscreen DisplayNextion NX4832f035 HMI Display with r..
Rs.3,273.32 (inc GST)
Rs.2,774.00 + GST
SKU: 3180 | DAD104
Stock: 80
HLK-5M05 AC to DC 5 Watts 5 Volts Module
HLK-5M05 AC To DC 5 Watts 5 Volts Module HLK-5M05 Module converts 120-230V AC to 5V DC, 5 Watts, co..
Rs.289.10 (inc GST)
Rs.245.00 + GST
SKU: 666 | DAB337
Stock: 5
Meanwell SMPS LRS-75-5
Meanwell LRS-75-5 SMPS 75W 5V Enclosed Power Supply Meanwell LRS-75-5, 75W enclosed SMPS, provides 5..
Rs.1,320.28 (inc GST)
Rs.1,118.88 + GST
SKU: 2494 | DAC658
Stock: 1
Mornsun LS03-13B12R3 AC to DC Power Supply Module
Mornsun LS03-13B12R3 12 Volt AC to DC Power Supply Mornsun LS03-13B12R3 AC to DC Converter, 3W, 12V..
Rs.223.02 (inc GST)
Rs.189.00 + GST
SKU: 2577 | DAC978
Stock: 398
Have You Seen
Product Page : Have You Seen
HLK-20M12 AC to DC 20 Watts 12 Volts Module
HLK-20M12 20 Watt 12 Volts Power Supply Module HLK-20M12 power module supplies 12V DC from 120-230V..
Rs.413.00 (inc GST)
Rs.350.00 + GST
SKU: 2594 | DAE084
Stock: 5
Meanwell SMPS HDR-30-12
Meanwell HDR-30-12 SMPS - Compact DIN Rail Power SupplyMeanwell HDR-30-12 offers high efficiency, un..
Rs.1,495.65 (inc GST)
Rs.1,267.50 + GST
SKU: 2508 | DAC672
Stock: 18
GX16 3PIN MRS FEMALE CABLE(PLASTIC) AIR TYPE CONNECTOR
GX16 3-Pin MRS Female Connector GX16 3-Pin MRS Female Connector for power or signal wiring; plastic..
Rs.35.28 (inc GST)
Rs.29.90 + GST
SKU: 9759 | DAI488
Stock: 25
Nextion Discovery NX4832F035 3.5" Resistive Touch Display
Nextion NX4832f035 3.5" Discovery Resistive Touchscreen DisplayNextion NX4832f035 HMI Display with r..
Rs.3,273.32 (inc GST)
Rs.2,774.00 + GST
SKU: 3180 | DAD104
Stock: 80
Related Products
UC3710 High Current FET Driver
UC3710 High Current FET DriverThe UC3710 family of FET drivers is made with a high-speed Schottky pr..
Rs.602.98 (inc GST)
Rs.511.00 + GST
SKU: 844 | DAA467
Stock: 2
ESP-12F WiFi Chipset Doit Make
Ai-thinker ESP-12F WiFi Module for IoT Projects ESP-12F WiFi Module; 80/160 MHz clock speed; Low po..
Rs.112.10 (inc GST)
Rs.95.00 + GST