UC2854DW product image


Power Factor Correction ICs
Texas Instruments(texas)


The UC2854DW  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 UC2854DW contains a voltage amplifier, an analog multiplier/divider,a current amplifier, and a fixed-frequency PWM. In addition, the UC2854DW contains a power MOSFET compatible gate driver, 7.5V reference,line anticipator, load-enable comparator, low-supply detector,and over-current comparator.


UC2854DW Features


• 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

Switching Frequency118 kHz
Maximum Operating Temperature+ 85 C
Mounting StyleSMD/SMT
Package / CaseSOIC-16
UC2854DW Price
Reference price:
Quote within 24 hours
Request for Quotation
Part No.:
*Quantity :
*Name :
*Email :
Phone/MP :
OPA2227UE4Operational Amplifiers - Op AmpsSiemens Semiconductor Group
IRF640NPower MosfetTaiwan Semiconductor Company, Ltd
PIC16F914-I/PTMicrocontrollers - MCU
TLC0838C8-Bit Analog-To-Digital Converters With Serial ControlDIOTEC [Diotec Semiconductor]
STM8S103F2P6TRMicrocontrollers - MCUON Semiconductor
SN74HC74PWRFlip Flopssanken
GD75232PWRRS-232 Interface IC
LT1027CCN8-5Voltage & Current ReferencesInfineon Technologies
MC33023DWPMIC - Voltage Regulators - DC DC Switching ControllersLittelfuse
2SK1058Silicon N Channel MOS FET