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UCC2818AN

Power Factor Correction Preregulator

Quantity Unit Price(USD) Ext. Price
1 $6.722 $6.72
200 $2.602 $520.40
500 $2.511 $1,255.50
1000 $2.466 $2,466.00

Inventory:2,582

*The price is for reference only.
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Overview of UCC2818AN

The UCC2818AN is a power factor correction (PFC) controller IC designed for use in AC-DC power supplies.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VSENSE: Voltage Sense Input
  • VDD: Positive Power Supply
  • CS: Current Sense Input
  • RT/CT: Timing Components Connection
  • COMP: Compensation
  • OUT: Output
  • GND: Ground
  • FB: Feedback
  • SD: Shutdown

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the UCC2818AN IC for a visual representation.

Key Features

  • Power Factor Correction (PFC): Enables efficient AC-DC power conversion by improving power factor.
  • Wide Input Voltage Range: Supports operation over a wide input voltage range, enhancing versatility.
  • Programmable Functions: Offers programmable features for flexible power supply designs.
  • Overcurrent Protection: Includes built-in protection mechanisms to safeguard against overcurrent conditions.
  • Compact Package: Available in a compact and space-saving package for efficient PCB layout.

Note: For detailed technical specifications, please refer to the UCC2818AN datasheet.

Application

  • AC-DC Power Supplies: Ideal for use in AC-DC power supplies requiring power factor correction.
  • Switched-Mode Power Supplies (SMPS): Suitable for SMPS applications that demand high efficiency and reliability.
  • Industrial Equipment: Used in various industrial equipment where efficient power conversion is essential.

Functionality

The UCC2818AN is a power factor correction controller IC that ensures efficient AC-DC power conversion by managing the input current waveform to improve power factor.

Usage Guide

  • Power Supply: Connect VDD (Pin 2) to the positive power supply voltage.
  • Feedback Control: Use the FB (Pin 8) pin for feedback control to regulate the output voltage.
  • Shutdown Function: Utilize the SD (Pin 9) pin for shutdown functionality as needed.

Frequently Asked Questions

Q: What is Power Factor Correction (PFC)?
A: Power Factor Correction (PFC) is a technique used to improve the power factor of a power supply by minimizing reactive power and optimizing real power utilization.

Q: Is the UCC2818AN suitable for high-power applications?
A: Yes, the UCC2818AN is suitable for high-power applications where efficient power factor correction is necessary for compliance with power quality standards.

Equivalent

For similar functionalities, consider these alternatives to the UCC2818AN:

  • UC3854: Another power factor correction (PFC) controller IC offering similar features and performance characteristics.
  • L6562A: A current-mode PFC controller IC suitable for high-efficiency power supply designs.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Topology Boost Control mode CCM
Switching frequency (max) (kHz) 250 UVLO thresholds on/off (V) 10.5/10
Vin (max) (V) 18 Features < 150 W applications, > 750 W applications, Average current mode, Continuous Control Mode, Enable, Overvoltage protection
Rating Catalog Operating temperature range (°C) -40 to 85
Duty cycle (max) (%) 100

Warranty & Returns

Warranty, Returns, and Additional Information

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    Returns for refund: within 90 days

    Returns for Exchange: within 90 days

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UCC2818AN

Power Factor Correction Preregulator

Inventory:

2,582