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 :
74LVC16245ADGG,512Bus TransceiversVISHAY [Vishay Siliconix]
DDTA114TUA-7TransistorsTexas Instruments
MC7805ACD2TGLinear Regulators - StandardMOTOROLA [Motorola, Inc]
LM431ACZXVoltage & Current ReferencesATMEL Corporation
MT47H32M16HR-3 IT:G TRMicrocontrollers - MCUSTMICROELECTRONICS [STMicroelectronics]
06031C122JAT2ACeramic CapacitorsAnalog Devices
74HC32PWQuad 2-input OR gateTAITRON [TAITRON Components Incorporated]
PIC16F616T-I/MLEmbedded - MicrocontrollersToshiba
MC14027BDGFlip FlopsON Semiconductor
FT232BLInterface - ControllersSAVANTIC [Savantic, Inc.]