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UC2854BM
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UC2854BM

  • Category:Power management chip
  • Product Name:Enhanced high power factor preregulator
  • Manufacturers:TI
  • Production Batch Number:10+
  • Encapsulation:SOIC-16
  • Stock Status:There is stock
  • Stock Quantity:35000
  • Minimum order quantity: 1
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  • Product introduction

UC2854BM  增强型高功率因子前置稳压器

illustrate

 

The UC1854 provides an active power supply system that would otherwise draw a sinusoidal power line for non-sinusoidal current factor correction. The device implements all the necessary control functions to establish a power supply that makes optimal use of existing power line currents while minimizing the ability to mistort line currents. To do this, the UC1854 contains a voltage amplifier, analog multiplier/divider, current amplifier, and fixed-frequency PWM. In addition, the UC1854 contains a power MOSFET gate driver compatible, 7.5V reference line estimator, load, enable comparator, low supply detector, and overcurrent comparator.

The UC1854 uses an average current control mode to achieve fixed frequency stabilization and low distortion current control.

 

 

 

characteristic

 

  • PWM controls the boost power factor of 0.99
  • Limit line current distortion
  • Global action, no switches
  • Feed-forward line adjustment
  • Average current mode control
  • Low noise sensitivity
  • 低启动电流
  • Fixed frequency PWM drive
  • Low offset analog multiplier/divider
  • 1A Totem pole gate driver
  • Precision voltage reference

andUC2854BMRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
UC2854BM TI 10+ SOIC-16 Enhanced high power factor preregulator

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