Product Images are shown for illustrative purposes only and may differ from actual product.
UC3854 High Power Factor Preregulator
- Stock: 6
- SKU: 819 | DAA470
-
Rs. 214.76 (inc GST)
Rs.182.00 + GSTQty :
| Also Available: DV164122 Microchip PICkit Serial Analyzer in Stock |
GST Invoice: Available for all purchases; eligible for input tax credit.
Delivery: 2–8 days across India. No MOQ required.
Bulk Orders: Need a larger quantity or item 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?
How do I track my shipment?
I forgot to add GST number at time of placing order, but I need GST Invoice in my firms name?
Do you support Purchase Orders (PO) for companies/colleges?
What if I received fewer / more quantity than ordered?
NEW Products
Product Page : New Products
Hongfa HF32F/012-ZS3 Relay
Hongfa HF32F/012-ZS3 Miniature Power RelayHF32F/012-ZS3 Relay; SPDT configuration; 12 VDC, 10 Ampere..
Rs.54.52 (inc GST)
Rs.46.20 + GST
SKU: 9984 | DAI776
Stock: 100
E32-900T20S 900 MHz EBYTE Wireless Transceiver Serial Port Module
EBYTE E32-900T20S 900 MHz Wireless Transceiver Module E32-900T20S Wireless Transceiver Module with L..
Rs.1,144.60 (inc GST)
Rs.970.00 + GST
SKU: 3909 | DAG082
Stock: 5
A2409S-2WR2 Mornsun DC-DC Converter
Mornsun DC-DC Converter A2409S-2WR2 2W Power Supply A2409S-2WR2 DC-DC Converter, 2W isolated power ..
Rs.424.80 (inc GST)
Rs.360.00 + GST
SKU: 3962 | DAG662
Stock: 5
STM32F411RET6 Microcontroller 32 Bit 512KB Flash 64LQFP SMD IC
STM Microcontroller STM32F411RET6 32 Bit 512KB Flash STM32F411RET6 Microcontroller with 32-bit ARM ..
Rs.613.43 (inc GST)
Rs.519.86 + GST
SKU: 8197 | DAH821
Stock: 2
Have You Seen
Product Page : Have You Seen
SLIDE SWITCH SMD MSS 12C01
MSS 12C01 Slide Switch SMD MSS 12C01 Slide Switch for SMD applications with SPDT function, low profi..
Rs.27.61 (inc GST)
Rs.23.40 + GST
SKU: 9667 | DAC921
Stock: 15
CA3140 BiMOS Op-AmpIC SMD-8 Package
CA3140 BiMOS Op-Amp Integrated Circuit SMD-8 Package CA3140 BiMOS Op-Amp for high impedance applica..
Rs.140.42 (inc GST)
Rs.119.00 + GST
SKU: 7161 | DAH059
Stock: 8
Meanwell SMPS LRS-350-12
Meanwell LRS-350-12 350W 12V Enclosed SMPS Meanwell LRS-350-12, 350W, 12V output, 29A current, effic..
Rs.2,583.32 (inc GST)
Rs.2,189.25 + GST
SKU: 2500 | DAC664
Stock: 2
LCD Module 2.4 inch 6-Digit 7 Segment LCD Display Module HT1621 LCD Driver IC with Decimal Point Green colour
LCD Module 2.4 Inch 6-Digit 7 Segment Display with HT1621 LCD Module 2.4 inch with HT1621 Driver IC..
Rs.383.50 (inc GST)
Rs.325.00 + GST
SKU: 7355 | DAG043
Stock: 29
Related Products
YF-S402 G1/4" PVC Water Flow Sensor
YF-S402 G1/4" PVC Water Flow SensorThis water flow sensor is basically a small turbine whose output ..
Rs.327.45 (inc GST)
Rs.277.50 + GST
SKU: 1632 | DAB255
Stock: 5
MT3608 DC to DC Step up Boost IC
MT3608 DC to DC Boost IC MT3608 Boost IC; Converts 2V to 24V input to 5V to 28V output; 97% efficie..
Rs.27.14 (inc GST)
Rs.23.00 + GST
SKU: 2427 | DAC257
Stock: 500
HB9500 4PIN SCREWABLE CONNECTOR WITH COVER
HB9500 4PIN Screwable Connector with Cover HB9500 4PIN connector is designed for secure wiring with..
Rs.33.63 (inc GST)
Rs.28.50 + GST
SKU: 5044 | DAG813
Stock: 10
LMV358 OPERATIONAL AMPLIFIER (MSOP8) IC
LMV358 Low-Voltage Operational Amplifier ICLMV358 Dual-channel op-amp with low power, rail-to-rail o..
Rs.33.04 (inc GST)
Rs.28.00 + GST
SKU: 7865 | DAG030
Stock: 10
SPACER TO STUD 3*3 HEX 20+5 = 25MM
Spacer to Stud 3*3 Hex 20+5 = 25MM Spacer to Stud Hex 20+5 = 25MM provides precise spacing with a du..
Rs.10.62 (inc GST)
Rs.9.00 + GST
SKU: 8597 | DAH869
Stock: 0
PL2303HX USB to RS485 Adapter Converter Module With Xp/Linux/Win7
PL2303HX USB to RS485 Adapter Converter Module With Xp/Linux/Win7PL2303HX USB to RS485 Converter + V..
Rs.105.40 (inc GST)
Rs.89.32 + GST