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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersUC3843BVD1G
UC3843BVD1G Image
Image may be representation.
See specifications for product details.

UC3843BVD1G - onsemi

Manufacturer Part Number
UC3843BVD1G
Manufacturer
onsemi
Allelco Part Number
32D-UC3843BVD1G
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
RoHs Status
ROHS3 Compliant
In stock: 7950

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Quantity

Specifications

UC3843BVD1G Tech Specifications
onsemi - UC3843BVD1G technical specifications, attributes, parameters and parts with similar specifications to onsemi - UC3843BVD1G

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 Tube  
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) 96%  
Control Features Frequency Control  
Clock Sync No  
Base Product Number UC3843  

Parts Introduction

Manufacturer Part Number

UC3843BVD1G

Manufacturer

onsemi

Introduction

Power Management Integrated Circuit for DC-DC Switching.

Product Features and Performance

Up to 500kHz Switching Frequency

Maximum Duty Cycle of 96%

Capable of Positive Output Configuration

Supports Isolation

Boost and Flyback Topology Options

Surface Mount 8-SOIC Package

Product Advantages

High-frequency operation for compact power supply designs.

High duty cycle for efficient power conversion.

Versatility with Step-Up and Step-Up/Step-Down Functions.

Isolation capability for safety and signal integrity.

Key Technical Parameters

Number of Outputs: 1

Output Phases: 1

Voltage Supply Range: 7.6V to 30V

Operating Temperature Range: -40°C to 105°C

Quality and Safety Features

Operational over a wide temperature range for reliability.

Compatibility

Suitable for use in various power conversion applications.

Designed for Surface Mount technology for ease of PCB design.

Application Areas

Used in power supply units where boost or flyback topology is required.

Product Lifecycle

Obsolete - Confirmation on replacement or upgrade options needed.

Several Key Reasons to Choose This Product

High switching frequency allows for smaller passive components.

Efficient power conversion attributable to a high allowable duty cycle.

Flexibility in designing both step-up and step-down power supplies.

Support for isolated power supply designs enhances safety.

Operational across a wide range of input voltages and temperatures.

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi UC3843BVD1G

Product Attribute UC3843BVD1G UC3843BN UC3843BN UC3843D
Part Number UC3843BVD1G UC3843BN UC3843BN UC3843D
Manufacturer onsemi STMicroelectronics onsemi Texas Instruments
Mounting Type Surface Mount Through Hole Through Hole Surface Mount
Output Configuration Positive, Isolation Capable Positive, Isolation Capable Positive, Isolation Capable Positive, Isolation Capable
Frequency - Switching Up to 500kHz Up to 500kHz Up to 500kHz Up to 500kHz
Serial Interfaces - - - -
Series - - - -
Voltage - Supply (Vcc/Vdd) 7.6V ~ 30V 7.6V ~ 30V 7.6V ~ 30V 12V ~ 28V
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Function Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Up, Step-Down, Step-Up/Step-Down
Package Tube Tube Tube Tube
Output Phases 1 1 1 1
Supplier Device Package 8-SOIC 8-Mini DIP 8-PDIP 14-SOIC
Synchronous Rectifier No No No No
Duty Cycle (Max) 96% 96% 96% 97%
Control Features Frequency Control Frequency Control Frequency Control Frequency Control
Operating Temperature -40°C ~ 105°C (TA) 0°C ~ 70°C (TJ) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Package / Case 8-SOIC (0.154', 3.90mm Width) 8-DIP (0.300", 7.62mm) 8-DIP (0.300", 7.62mm) 14-SOIC (0.154', 3.90mm Width)
Topology Boost, Flyback Boost, Flyback Boost, Flyback Boost, Buck, Buck-Boost, Flyback, Forward
Base Product Number UC3843 UC3843 UC3843 UC3843
Number of Outputs 1 1 1 1
Clock Sync No No No No

UC3843BVD1G Datasheet PDF

Download UC3843BVD1G pdf datasheets and onsemi documentation for UC3843BVD1G - onsemi.

Datasheets
Cylindrical Battery Holders.pdf
Environmental Information
onsemi RoHS.pdf onsemi REACH.pdf Material Declaration UC3843BVD1G.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf
PCN Packaging
Tape Design Chg 25/Oct/2019.pdf
PCN Assembly/Origin
2.73KHz.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

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UC3843BVD1G Image

UC3843BVD1G

onsemi
32D-UC3843BVD1G

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