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UC3853N

Category:Power management chip
Product Name:High power factor preregulator
Manufacturers:TI
Production Batch Number:10+
Encapsulation:DIP
Stock Status:There is stock
Stock Quantity:0
Minimum Order Quantity:
Details:

Product introduction

UC3853N High power factor preregulator

illustrate

The UC3853 provides simple, yet high-performance active power factor correction. As the UC1854 uses the same control technology, this 8-pin device utilizes a simplified architecture and internal oscillator to reduce external component count. The UC3853 employs precision multiplier/square/divider circuitry, voltage and current loop error amplifiers, a precision voltage reference, and implements current-mode control with RMS average line voltage compensation. This control technique keeps closed-loop gain while maintaining the input voltage, minimizing the worldwide variation in input voltage input line current distortion.

The internal 75kHz oscillator includes an external clock input that allows synchronization to downstream converters.

characteristic

Complete 8-pin power factor solution
Fewer external components
Line voltage compensation for RMS
Precision multiplier/square/divider
An internal 75kHz oscillator is synchronizable
Average current mode PWM control
Overvoltage protection comparison
High current, gate driver clamping

andUC3853NRelated ICs are:

Model	Manufacturers	lot number	encapsulation	illustrate
UC3853N	TI	10+	DIP	High power factor preregulator

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