• UCC28C43DR SOIC (D)-8
UCC28C43DR SOIC (D)-8

UCC28C43DR

The UCC28C43DR is a BiCMOS device designed for converting AC to DC with low power usage

Quantity Unit Price(USD) Ext. Price
1 $0.766 $0.77
10 $0.633 $6.33
30 $0.566 $16.98
100 $0.502 $50.20
500 $0.418 $209.00
1000 $0.396 $396.00

Inventory:5,883

*The price is for reference only.
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  • Part Number : UCC28C43DR

  • Package/Case : SOIC (D)-8

  • Brands : TI

  • Components Categories : DC DC Switching Controllers

  • Datesheet : UCC28C43DR DataSheet (PDF)

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Overview of UCC28C43DR

The UCC28C43DR is a high-performance current-mode PWM controller designed for offline AC-DC power supplies and DC-DC converters.It features a wide input voltage range and various protection mechanisms,making it ideal for demanding power supply applications.

Pinout

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

  • VCC:Positive Power Supply
  • GND:Power Ground
  • FB:Feedback Pin
  • CS:Current Sense Input
  • REF:Reference Voltage Output
  • COMP:Error Amplifier Output
  • RT/CT:Timing Resistor/Capacitor Connection
  • SD:Shutdown Pin
  • OV:Overvoltage Protection

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the UCC28C43DR IC for a visual representation.

Key Features

  • Current-Mode PWM Controller:The UCC28C43DR operates as a current-mode PWM controller,ensuring stable and efficient power conversion.
  • Wide Input Voltage Range:With support for a wide input voltage range,this IC is suitable for versatile power supply designs.
  • Protection Features:Includes overvoltage protection and shutdown pin for added safety and reliability in power supply applications.
  • High Efficiency:Offers high efficiency in power conversion,helping to minimize energy losses and heat generation.
  • Compact Package:Available in a compact and space-saving package for easier integration into power supply systems.

Note:For detailed technical specifications,please refer to the UCC28C43DR datasheet.

Application

  • Offline AC-DC Power Supplies:Ideal for use in offline AC-DC power supply designs for various electronic devices.
  • DC-DC Converters:Suitable for DC-DC converter applications requiring precise voltage regulation and high efficiency.
  • Power Management Systems:Used in power management systems for industrial and consumer electronics applications.

Functionality

The UCC28C43DR functions as a high-performance PWM controller,providing stable and efficient power conversion in a wide range of power supply applications.Its protection features enhance system reliability.

Usage Guide

  • Power Supply:Connect VCC(Pin 1)to the positive power supply and GND(Pin 2)to the power ground.
  • Feedback Loop:Ensure proper connection of the FB pin for feedback control and stable operation.
  • Protection Features:Utilize the shutdown pin(SD)for system shutdown and implement overvoltage protection as needed.

Frequently Asked Questions

Q:How does the overvoltage protection feature work in the UCC28C43DR?
A:The overvoltage protection feature in the UCC28C43DR monitors the input voltage and triggers a shutdown mechanism to protect the IC and connected components from excessive voltage.

Equivalent

For similar functionalities,consider these alternatives to the UCC28C43DR:

  • UCC28C44DR:This IC offers similar performance to the UCC28C43DR with additional features for enhanced power supply designs.
  • UCC38C43DR:An upgraded version of the UCC28C43DR with improved efficiency and protection capabilities.
  • UC3843:This PWM controller IC provides comparable functionality to the UCC28C43DR and can be used as an alternative in certain applications.

UCC28C43DR

Specifications

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

Topology Boost, Buck, Flyback, Forward, SEPIC Control mode Current
Duty cycle (max) (%) 100 Switching frequency (max) (kHz) 1000
Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology, Programmable max duty cycle UVLO thresholds on/off (V) 8.4/7.6
Operating temperature range (°C) -40 to 125 Rating Catalog
Gate drive (typ) (A) 1 Vin (max) (V) 18

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

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