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UC2843D8

Texas Instruments UC2843D8

Quantity Unit Price(USD) Ext. Price
1000 $0.180 $180.00
500 $0.184 $92.00
200 $0.191 $38.20
1 $0.491 $0.49

Inventory:8,438

*The price is for reference only.
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Submit your quote request for UC2843D8 using this form.You can also reach us via email at Email: [email protected], and we will respond within 12 hours.

Overview of UC2843D8

The UC2843D8 is a high-performance current-mode PWM controller IC designed for use in switching power supply applications. This IC features a wide input voltage range and high output current capability, making it suitable for various power management designs.

Pinout

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

  • COMP: Compensation pin
  • RT/CT: Timing components pin
  • FB: Feedback pin
  • VCC: Supply voltage pin
  • VREF: Reference voltage pin
  • CS: Current sense pin
  • OUT: Output pin
  • GND: Ground pin
  • SD: Shutdown pin

Circuit Diagram

Include a circuit diagram that illustrates the connections and operation of the UC2843D8 IC for a visual representation.

Key Features

  • Current-Mode PWM Controller: The UC2843D8 operates in current-mode PWM control, providing precise regulation and fast transient response.
  • Wide Input Voltage Range: This IC can accommodate a wide range of input voltages, making it versatile for various power supply designs.
  • High Output Current Capability: The UC2843D8 is capable of driving high output currents, suitable for power applications requiring significant power handling.
  • Adjustable Frequency Operation: This IC allows for adjustable frequency operation, enabling flexibility in power supply designs.
  • Overcurrent Protection: The UC2843D8 features overcurrent protection to safeguard the circuit and load from excessive current.
  • Compact Package: Available in a space-saving 8-pin SOIC package for ease of integration into designs.

Note: For detailed technical specifications, please refer to the UC2843D8 datasheet.

Application

  • Switching Power Supplies: Ideal for use in switching power supply designs for efficient power conversion.
  • LED Drivers: Suitable for LED driver applications due to its high output current capability and precise control.
  • Voltage Regulators: The UC2843D8 can be used in voltage regulator circuits for stable and regulated power output.

Functionality

The UC2843D8 is a current-mode PWM controller that offers efficient and accurate control in power supply applications. It provides reliable performance and versatility in power management designs.

Usage Guide

  • Power Supply: Connect VCC (Pin 4) to the supply voltage and GND (Pin 7) to the ground reference.
  • Feedback Loop: Use the FB (Pin 3) and COMP (Pin 1) pins to adjust the output voltage and stability of the control loop.
  • Output Connection: Connect the OUT (Pin 6) pin to the power stage for driving external components.

Frequently Asked Questions

Q: What is the typical switching frequency of the UC2843D8?
A: The UC2843D8 typically operates at switching frequencies ranging from a few tens of kHz to a few hundred kHz.

Q: Is the UC2843D8 suitable for flyback converter designs?
A: Yes, the UC2843D8 is commonly used in flyback converter configurations due to its current-mode control and high input voltage range.

Equivalent

For alternative options offering similar functionalities to the UC2843D8, consider the following:

  • UC3843A: A higher-performance version of the UC2843D8 with extended features and capabilities for advanced power supply designs.
  • TL494: This PWM controller IC provides comparable functionality to the UC2843D8 and is commonly used in power supply applications.

Specifications

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

Topology Boost, Buck, Buck boost, Flyback, Forward Control mode Peak current mode
Duty cycle (max) (%) 100 Switching frequency (max) (kHz) 500
Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology UVLO thresholds on/off (V) 8.4/7.6
Operating temperature range (°C) -40 to 85 Rating Catalog
Gate drive (typ) (A) 1 Vin (max) (V) 28

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.

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UC2843D8

Texas Instruments UC2843D8

Inventory:

8,438
Overview of UC2843D8 Specifications Warranty & Returns Similar Products Popular Products

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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.

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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.

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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.

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