• packageimg
packageimg

UCC28951PWR

Current Mode PWM Controller 1000kHz 24-Pin TSSOP T/R

Inventory:3,874

  • 90-day after-sales guarantee
  • 365 Days Quality Guarantee
  • Genuine Product Guarantee
  • 7*24 hours service quarantee

Rapid Quote

Submit your quote request for UCC28951PWR using this form.You can also reach us via email at Email: [email protected], and we will respond within 12 hours.

Overview of UCC28951PWR

The UCC28951PWR is a high-performance, single-channel, active power factor correction (PFC) controller IC that is designed for use in power supply applications. It features a wide input voltage range and high efficiency, making it ideal for improving power factor and overall system efficiency.

Pinout

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

  • VSENSE: Voltage Sense Input
  • FB: Feedback Pin
  • COMP: Compensation Pin
  • RT/CT: Timing Components Pin
  • CS: Current Sense Input
  • VCC: Supply Voltage Input
  • AGND: Analog Ground
  • PGND: Power Ground
  • OUT: Gate Driver Output

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the UCC28951PWR IC for a visual representation.

Key Features

  • Active PFC Controller: The UCC28951PWR is a dedicated PFC controller for improving power factor and system efficiency.
  • Wide Input Voltage Range: Operates from a wide input voltage range, suitable for various power supply designs.
  • High Efficiency: Offers high efficiency in power conversion, reducing energy losses and improving overall system performance.
  • Internal Gate Driver: Integrated gate driver for driving external power switches efficiently.
  • Protection Features: Includes overcurrent protection, overvoltage protection, and thermal shutdown for enhanced system reliability.

Note: For detailed technical specifications, please refer to the UCC28951PWR datasheet.

Application

  • Power Supply Units: Ideal for use in power supply units requiring active power factor correction.
  • LED Lighting Systems: Suitable for LED lighting systems to improve power factor and efficiency.
  • Motor Drives: Used in motor drive applications for efficient power conversion.

Functionality

The UCC28951PWR is designed to control the input current to achieve high power factor correction, ensuring efficient power conversion and reduced harmonic distortion in power systems.

Usage Guide

  • Input Voltage: Connect the VSENSE, CS, and VCC pins to their respective voltage sources.
  • Feedback Loop: Use the FB, COMP, and RT/CT pins to configure the feedback loop for stable operation.
  • Gate Driving: Connect the OUT pin to the gate of the external power switch for proper switching operation.

Frequently Asked Questions

Q: What is the role of the compensation pin (COMP) in the UCC28951PWR?
A: The COMP pin is used to adjust the control loop response and stability of the PFC operation in the UCC28951PWR.

Q: Can the UCC28951PWR be used in high-power applications?
A: Yes, the UCC28951PWR is suitable for high-power applications where active PFC and efficient power conversion are required.

Equivalent

For similar functionalities, consider these alternatives to the UCC28951PWR:

  • UCC28051: Another active PFC controller IC with comparable features and performance to the UCC28951PWR.
  • IR1150: A high-performance PFC controller from Infineon offering similar functionality for power supply designs.
  • LTC4359: This PFC controller from Linear Technology provides efficient power factor correction for various applications.

Specifications

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

Topology Phase-shifted full bridge Control mode Current, Peak current mode, Voltage
Duty cycle (max) (%) 97 Switching frequency (max) (kHz) 1000
Features Adjustable switching frequency, Current limiting, Enable/Shutdown, Error amplifier, Green mode, Light-load efficiency, Programmable slope compensation, Soft start, Soft switching, Synchronization pin, Thermal shutdown UVLO thresholds on/off (V) 7.3/6.7
Operating temperature range (°C) -40 to 125 Rating Catalog
Gate drive (typ) (A) 0.2 Vin (max) (V) 17

Warranty & Returns

Warranty, Returns, and Additional Information

  • QA & Return Policy ?

    Parts Quality Guarantee: 365 days

    Returns for refund: within 90 days

    Returns for Exchange: within 90 days

  • Shipping and Package ?

    Shipping:For example, FedEx, JP, UPS, DHL,SAGAWA, or YTC.

    Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.

  • Payment ?

    For example, channels like VISA,MasterCard,Western Union,PayPal,MoneyGram,Rakuten Pay and more.

    If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

TLVH431BIL3T

TLVH431BIL3T

V-Ref Adjustable 1.24V to 18V 60mA 3-Pin SOT-23 T/R
LMR33620BDDA

LMR33620BDDA

Conv DC-DC 3.8V to 36V Synchronous Step Down Single-Out 1V to 24V 2A 8-Pin HSOIC EP Tube
NCP81382MNTXG

NCP81382MNTXG

Driver and MOSFET Combined
LM350T/NOPB

LM350T/NOPB

LM350T/NOPB is a 3A adjustable linear voltage regulator with a positive electrode that can output voltages ranging from 1.25V to 33V
UCC28019P

UCC28019P

Power Factor Correction controller for optimizing power quality
LM5020MM-1/NOPB

LM5020MM-1/NOPB

10-Pin VSSOP Package
packageimg

UCC28951PWR

Current Mode PWM Controller 1000kHz 24-Pin TSSOP T/R

Inventory:

3,874
Overview of UCC28951PWR Specifications Warranty & Returns Similar Products Popular Products

Warranty & Returns close

After Sales Service

What after-sales service can be provided?

We provide an extended quality assurance period of 365 days for all components we offer. If a return or exchange becomes essential, kindly adhere to these guidelines:

·Initiate the request within 90 days after the item's shipment date.

·Coordinate the return or exchange with our team.

·Keep the items in their original condition as delivered.

·Please be aware that the feasibility of returning or exchanging items is contingent upon an evaluation of their actual state upon return.

Shipping

What channels of transportation of goods does the website support?

We usually send out our orders during business days using FedEx, SF, UPS, or DHL. We're also here to assist with alternative shipping options. Should you require additional information about shipping particulars or expenses, please don't hesitate to get in touch with us.

ems dhl ups japan-post-holdings sagawa yamato fedex

Package

How to ensure that the parts will be intact during transportation?

The items we ship will be packaged in anti-static bags, ensuring ESD anti-static protection, while the outer packaging boasts exceptional durability and sealing. We offer packaging options like Tape and Reel, Cut Tape, Tube, or Tray to suit your needs.

ESD package package package

Payment

Which payment methods can be used to pay for goods

Accepted payment methods commonly encompass VISA, MasterCard, UnionPay, Western Union, PayPal, and various other options.

Should you have a particular payment preference or wish to seek information on rates and other specifics, please feel free to reach out to us.

hsbc paypal visa western union moneygram