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NATNSCLF13508D
Integrated Circuits (ICs)

5962-9326101MEA

Active
Texas Instruments

UC1854 HIGH POWER FACTOR PREREGU

NATNSCLF13508D
Integrated Circuits (ICs)

5962-9326101MEA

Active
Texas Instruments

UC1854 HIGH POWER FACTOR PREREGU

Technical Specifications

Parameters and characteristics for this part

Specification5962-9326101MEA
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Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyBulk 10$ 31.31
Texas InstrumentsTUBE 1$ 42.04
100$ 36.72
250$ 28.32
1000$ 25.33

Description

General part information

5962-9326101 Series

The UC1854 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 UC1854 contains a voltage amplifier, an analog multiplier and divider, a current amplifier, and a fixed-frequency PWM.

In addition, the UC1854 contains a power MOSFET-compatible gate driver, 7.5-V reference, line anticipator, load-enable comparator, low-supply detector, and overcurrent comparator.

The UC1854 uses average current-mode control to accomplish fixed-frequency current control with stability and low distortion. Unlike peak current-mode, average current control accurately maintains sinusoidal line current without slope compensation and with minimal response to noise transients.