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UC1853

Part Number	UC1853
Manufacturer	Unitrode
Description	High Power Factor Preregulator
Published	Apr 21, 2020
Detailed Description	High Power Factor Preregulator UC1853 UC2853 UC3853 FEATURES • Complete 8-pin Power Factor Solution • Reduced External...
Datasheet	UC1853 PDF File

Overview

High Power Factor Preregulator UC1853 UC2853 UC3853 FEATURES • Complete 8-pin Power Factor Solution • Reduced External Components • RMS Line Voltage Compensation • Precision Multiplier/Squarer/Divider • Internal 75kHz Synchronizable Oscillator • Average Current Mode PWM Control • Overvoltage Protection Comparator • High Current, Clamped Gate Driver DESCRIPTION The UC3853 provides simple, yet high performance active power factor correction.
Using the same control technique as the UC1854, this 8-pin device exploits a simplified architecture and an internal oscillator to minimize external component count.
The UC3853 incorporates a precision multiplier/squarer/divider circuit, voltage and cur...

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