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 ControllersUC3844BVDR2
UC3844BVDR2 Image
Image may be representation.
See specifications for product details.
EXPRESS OPTION
Payment method

UC3844BVDR2 - onsemi

Manufacturer Part Number
UC3844BVDR2
Manufacturer
onsemi
Allelco Part Number
32D-UC3844BVDR2
ECAD Model
Parts Description
IC REG CTRLR PWM CM 14-SOIC
Package
14-SOIC (0.154", 3.90mm Width)
Data sheet
UC3844B,45B & UC2844B,45B.pdf
Our certification
In stock: 4490

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

Quantity
EXPRESS OPTION
Payment method
Our certification

Specifications

UC3844BVDR2 Tech Specifications
onsemi - UC3844BVDR2 technical specifications, attributes, parameters and parts with similar specifications to onsemi - UC3844BVDR2

Product Attribute Attribute Value  
Manufacturer onsemi  
Voltage - Supply (Vcc/Vdd) 10V ~ 36V  
Topology Boost, Flyback  
Synchronous Rectifier No  
Supplier Device Package 14-SOIC  
Series -  
Serial Interfaces -  
Package / Case 14-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 -40°C ~ 105°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) 48%  
Control Features Frequency Control  
Clock Sync No  
Base Product Number UC3844  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.31.0001

Parts Introduction

Manufacturer Part Number

UC3844BVDR2

Manufacturer

onsemi

Introduction

The UC3844BVDR2 is a high-performance, high-voltage, currentmode PWM controller designed for flyback, boost, and forward converter topologies. It offers a wide input voltage range, high switching frequency capability, and excellent line and load regulation.

Product Features and Performance

Wide input voltage range of 10V to 36V

Operates at switching frequencies up to 500kHz

Provides up to 48% maximum duty cycle

Includes internal reference, error amplifier, and oscillator

Offers current mode control for excellent line and load regulation

Supports both positive and isolation-capable outputs

Product Advantages

High-performance control for efficient power conversion

Versatile topology support for flexible design

Wide operating voltage and temperature range

Small surface-mount package for compact designs

Key Reasons to Choose This Product

Reliable and efficient power management solution

Flexibility to implement various converter topologies

Robust performance across a wide range of operating conditions

Compact and space-saving package

Quality and Safety Features

Designed and manufactured to onsemi's high quality standards

Supports applications requiring reliable and safe power conversion

Compatibility

The UC3844BVDR2 is compatible with a variety of power conversion applications, including:

Flyback, boost, and forward converters

Isolated and non-isolated power supplies

Industrial, consumer, and computing applications

Application Areas

Power supplies

Battery chargers

Industrial controls

Telecom equipment

Consumer electronics

Product Lifecycle

The UC3844BVDR2 is an obsolete product, meaning it is no longer in active production. However, there are several equivalent or alternative models available from onsemi that may provide similar functionality. Customers are advised to contact our website's sales team for more information on suitable replacement options.

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi UC3844BVDR2

Product Attribute UC3844BVDR2 UC3844D UC3844BN UC3844BVD1R2G
Part Number UC3844BVDR2 UC3844D UC3844BN UC3844BVD1R2G
Manufacturer onsemi Fairchild Semiconductor onsemi onsemi
Topology Boost, Flyback Boost, Buck, Buck-Boost, Flyback, Forward Boost, Flyback Boost, Flyback
Series - - - -
Output Configuration Positive, Isolation Capable Positive, Isolation Capable Positive, Isolation Capable Positive, Isolation Capable
Package / Case 14-SOIC (0.154", 3.90mm Width) 14-SOIC (0.209", 5.30mm Width) 8-DIP (0.300', 7.62mm) 8-SOIC (0.154', 3.90mm Width)
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Supplier Device Package 14-SOIC 14-SOP 8-PDIP 8-SOIC
Operating Temperature -40°C ~ 105°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) -40°C ~ 105°C (TA)
Output Phases 1 1 1 1
Voltage - Supply (Vcc/Vdd) 10V ~ 36V 10V ~ 30V 10V ~ 36V 10V ~ 36V
Base Product Number UC3844 UC3844 UC3844 UC3844
Clock Sync No No No No
Mounting Type Surface Mount Surface Mount Through Hole Surface Mount
Synchronous Rectifier No No No No
Duty Cycle (Max) 48% 48% 48% 48%
Number of Outputs 1 1 1 1
Frequency - Switching Up to 500kHz Up to 500kHz Up to 500kHz Up to 500kHz
Serial Interfaces - - - -
Control Features Frequency Control Frequency Control Frequency Control Frequency Control
Package Tape & Reel (TR) Tube Tube Tape & Reel (TR)
Function Step-Up, Step-Up/Step-Down Step-Up, Step-Down, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down

UC3844BVDR2 Datasheet PDF

Download UC3844BVDR2 pdf datasheets and onsemi documentation for UC3844BVDR2 - onsemi.

Datasheets
UC3844B,45B & UC2844B,45B.pdf
Environmental Information
onsemi REACH.pdf onsemi RoHS.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
UC3844BVDR2 Image

UC3844BVDR2

onsemi
32D-UC3844BVDR2

Want a better price? Please Add to Cart, 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