View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersUC2843BD1R2
UC2843BD1R2 Image
Image may be representation.
See specifications for product details.

UC2843BD1R2 - onsemi

Manufacturer Part Number
UC2843BD1R2
Manufacturer
onsemi
Allelco Part Number
32D-UC2843BD1R2
ECAD Model
Parts Description
IC REG CTRLR FLYBACK 8SOIC
Detailed Description
Package
8-SOIC (0.154', 3.90mm Width)
Data sheet
Cylindrical Battery Holders.pdf
In stock: 4240

Required fields are indicated by an asterisk (*)
Please send RFQ, we will respond immediately.

Quantity

Specifications

UC2843BD1R2 Tech Specifications
onsemi - UC2843BD1R2 technical specifications, attributes, parameters and parts with similar specifications to onsemi - UC2843BD1R2

Product Attribute Attribute Value  
Manufacturer onsemi  
Voltage - Supply (Vcc/Vdd) 7.6V ~ 30V  
Topology Boost, Flyback  
Synchronous Rectifier No  
Supplier Device Package 8-SOIC  
Series -  
Serial Interfaces -  
Package / Case 8-SOIC (0.154', 3.90mm Width)  
Package Tape & Reel (TR)  
Output Type Transistor Driver  
Output Phases 1  
Product Attribute Attribute Value  
Output Configuration Positive, Isolation Capable  
Operating Temperature -25°C ~ 85°C (TA)  
Number of Outputs 1  
Mounting Type Surface Mount  
Function Step-Up, Step-Up/Step-Down  
Frequency - Switching Up to 500kHz  
Duty Cycle (Max) 96%  
Control Features Frequency Control  
Clock Sync No  
Base Product Number UC2843  

Parts Introduction

Manufacturer Part Number

UC2843BD1R2

Manufacturer

onsemi

Introduction

The UC2843BD1R2 is a high-performance, fixed-frequency, current-mode pulse-width modulation (PWM) controller optimized for use in boost, flyback, and other non-isolated DC-DC converter topologies. It features a wide input voltage range, up to 500kHz switching frequency, and a variety of protection features, making it a versatile choice for power supply applications.

Product Features and Performance

Wide input voltage range: 7.6V to 30V

High switching frequency up to 500kHz

96% maximum duty cycle

Non-synchronous operation

Frequency control for compensation flexibility

Undervoltage lockout, overcurrent, and thermal shutdown protection

Product Advantages

Suitable for boost, flyback, and other non-isolated DC-DC converter topologies

Wide input voltage range accommodates various application requirements

High switching frequency allows for use in compact power supply designs

Protection features ensure reliable and safe operation

Key Reasons to Choose This Product

Versatile and adaptable to different power supply needs

Efficient performance with high switching frequency and duty cycle

Robust protection features safeguard the device and application

Compact surface-mount package for space-constrained designs

Quality and Safety Features

Thermal shutdown protection

Undervoltage lockout

Overcurrent protection

Compatibility

The UC2843BD1R2 is compatible with a variety of power supply applications, including:

Industrial equipment

Telecommunications systems

Consumer electronics

Automotive electronics

Application Areas

Boost converters

Flyback converters

Other non-isolated DC-DC converter topologies

Product Lifecycle

The UC2843BD1R2 is an obsolete product, meaning it is nearing the end of its lifecycle. There are several alternative models available from onsemi that may provide similar or improved functionality. Customers are advised to contact our website's sales team for more information on available options and product recommendations.

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi UC2843BD1R2

Product Attribute UC2843BD1R2 UC2843BDG UC2843BD1 UC2843AQD8R
Part Number UC2843BD1R2 UC2843BDG UC2843BD1 UC2843AQD8R
Manufacturer onsemi onsemi STMicroelectronics Texas Instruments
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Topology Boost, Flyback Boost, Flyback Boost, Flyback Boost, Buck, Flyback, Forward
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Output Configuration Positive, Isolation Capable Positive, Isolation Capable Positive, Isolation Capable Positive, Isolation Capable
Base Product Number UC2843 UC2843 UC2843 UC2843
Frequency - Switching Up to 500kHz Up to 500kHz Up to 500kHz Up to 500kHz
Series - - - Automotive, AEC-Q100
Package / Case 8-SOIC (0.154', 3.90mm Width) 14-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154', 3.90mm Width) 8-SOIC (0.154', 3.90mm Width)
Control Features Frequency Control Frequency Control Frequency Control Frequency Control
Voltage - Supply (Vcc/Vdd) 7.6V ~ 30V 7.6V ~ 30V 7.6V ~ 30V 7.6V ~ 30V
Clock Sync No No No No
Function Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Up
Operating Temperature -25°C ~ 85°C (TA) -25°C ~ 85°C (TA) -25°C ~ 85°C (TA) -40°C ~ 125°C (TA)
Supplier Device Package 8-SOIC 14-SOIC 8-SOIC 8-SOIC
Serial Interfaces - - - -
Number of Outputs 1 1 1 1
Synchronous Rectifier No No No No
Output Phases 1 1 1 1
Duty Cycle (Max) 96% 96% 96% 96%
Package Tape & Reel (TR) Tube Tube Tape & Reel (TR)

UC2843BD1R2 Datasheet PDF

Download UC2843BD1R2 pdf datasheets and onsemi documentation for UC2843BD1R2 - onsemi.

Datasheets
Cylindrical Battery Holders.pdf
Environmental Information
onsemi RoHS.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

View More
UC2843BD1R2 Image

UC2843BD1R2

onsemi
32D-UC2843BD1R2

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

0 RFQ
Shopping cart (0 Items)
It is empty.
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB