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1. Utsource will inspect the goods, including appearance inspection (no serious damage to the appearance), select qualified and honest suppliers, and ensure 98% qualification rate.
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Description
High Power Factor Preregulator
All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
Introduction:
The UC3854N 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 supply power capable of optimally using available power-line current while minimizing line-current distortion.
Some Core Parameters:
SPECIAL 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
How it Uses in the work:
Internal Block Diagram:
UC3854N Pinout Connections:
UC3854N Pin Functions:
● Gnd Pin 1: All voltages are measured with re- spect to GND.
● PKLMT Pin 2: peak limit. The threshold for PKLMT is 0.0V.
● CA Out Pin 3: current amplifier output
● ISENSE Pin 4: This is the inverting input to the current amplifier.
● Mult Out Pin 5: multiplier output and current sense plus.
● IAC Pin 6: This input to the analog multiplier is a current.
● VA Out Pin 7: voltage amplifier output
● VRMS Pin 8: RMS line voltage
● REF Pin 9: voltage reference output
● ENA Pin 10: ENA is a logic input that will en- able the PWM output.
● VSENSE Pin 11: voltage amplifier inverting input.
● RSET Pin 12: oscillator charging current and multiplier limit set.
● SS Pin 13 SS will remain at Gnd as long as the IC is disabled or VCC is too low.
● VCC Pin 15: positive supply voltage
Preview of the first 3 pages of the data sheet
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11 buyer reviews from Singapore
Stephanie Russell
Length of registration:7 years
I recently purchased the UC3854N integrated circuit from Utsource and I am very pleased with the product. The circuit arrived quickly and in perfect condition. I tested the circuit and found it to be of excellent quality and performance. The circuit was easy to install and worked as expected. I would highly recommend Utsource for any of your integrated circuit needs.
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Reply0
03/17/2023
érico Krieger Néto
Length of registration:6 years
Very good quality components
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06/19/2018
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Returns are normally accepted when completed within 60 days from the date of the parcel delivered.
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Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
UC3854N
UC3854N has several brands around the world that may have alternate names for UC3854N due to regional differences or acquisition. UC3854N may also be known as the following names:
BUYING OPTIONS
Stock Status: 10000
Minimum: 2
Total Price:
Unit Price:3.93694
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United States
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11 sellers Choices
Stop production experts, we can provide a large number of electronic components that have been stopped production and are difficult to find, to facilitate the maintenance company
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