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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersUC3845BVD1R2
UC3845BVD1R2 Image
Image may be representation.
See specifications for product details.

UC3845BVD1R2 - onsemi

Manufacturer Part Number
UC3845BVD1R2
Manufacturer
onsemi
Allelco Part Number
32D-UC3845BVD1R2
ECAD Model
Parts Description
IC REG CTRLR BOOST/FLYBACK 8SOIC
Detailed Description
Package
8-SOIC (0.154", 3.90mm Width)
Data sheet
UC3844B,45B & UC2844B,45B.pdf
In stock: 14180

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Specifications

UC3845BVD1R2 Tech Specifications
onsemi - UC3845BVD1R2 technical specifications, attributes, parameters and parts with similar specifications to onsemi - UC3845BVD1R2

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 -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 UC3845  

Parts Introduction

Manufacturer Part Number

UC3845BVD1R2

Manufacturer

onsemi

Introduction

The UC3845BVD1R2 by onsemi is an integrated circuit used for DC to DC switching control, specifically designed for boost and flyback converter configurations.

Product Features and Performance

Supports boost and flyback topologies

Single output transistor driver functionality

Capable of output isolation

Operates at a switching frequency up to 500kHz

Allows for maximum duty cycle of 48%

Integrated frequency control features

Designed for surface mounting with an 8-SOIC package

Product Advantages

High-frequency operation which promotes reduced transformer size in designs

Ability to handle a wide voltage supply range from 7.6V to 30V

Operating temperature range suitable for diverse environments (-40°C to 105°C)

Versatile compatibility with different topologies and configurations

Key Technical Parameters

Voltage Supply (Vcc/Vdd): 7.6V to 30V

Maximum Switching Frequency: 500kHz

Maximum Duty Cycle: 48%

Operating Temperature: -40°C to 105°C

Package: 8-SOIC

Quality and Safety Features

Operates within a wide temperature range ensuring stability and reliability under varying environmental conditions

Compatibility

Compatible with a range of stepping and stepping/down converter applications

Usable in applications requiring isolation

Application Areas

Suited for power supply design in consumer electronics

Power management in portable devices

Industrial power systems

Product Lifecycle

Obsolete status, suggesting the need to look for replacements or upgrades

Several Key Reasons to Choose This Product

High efficiency with upper frequency reaching 500kHz allows for compact power supply design

Broad functional temperature range making it suitable for industrial applications under extreme conditions

Broad voltage input range providing flexibility in various power situations

Obsolescence of the part necessitates consideration for future support and replacement options

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi UC3845BVD1R2

Product Attribute UC3845BVD1R2 UC3845BNG UC3845BDG UC3845D
Part Number UC3845BVD1R2 UC3845BNG UC3845BDG UC3845D
Manufacturer onsemi onsemi onsemi Fairchild Semiconductor
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-DIP (0.300', 7.62mm) 14-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 8-PDIP 14-SOIC 14-SOIC
Frequency - Switching Up to 500kHz Up to 500kHz Up to 500kHz Up to 500kHz
Package Tape & Reel (TR) Tube Tube Tube
Control Features Frequency Control Frequency Control Frequency Control Frequency Control
Operating Temperature -40°C ~ 105°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Output Configuration Positive, Isolation Capable Positive, Isolation Capable Positive, Isolation Capable Positive or Negative, Isolation Capable
Synchronous Rectifier No No No No
Duty Cycle (Max) 48% 48% 48% 48%
Mounting Type Surface Mount Through Hole Surface Mount Surface Mount
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Clock Sync No No No No
Output Phases 1 1 1 1
Topology Boost, Flyback Boost, Flyback Boost, Flyback Boost, Buck, Buck-Boost, Flyback, Forward
Serial Interfaces - - - -
Base Product Number UC3845 UC3845 UC3845 UC3845
Number of Outputs 1 1 1 1
Voltage - Supply (Vcc/Vdd) 7.6V ~ 30V 7.6V ~ 30V 7.6V ~ 30V 7.6V ~ 30V
Series - - - -
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

UC3845BVD1R2 Datasheet PDF

Download UC3845BVD1R2 pdf datasheets and onsemi documentation for UC3845BVD1R2 - 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

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UC3845BVD1R2 Image

UC3845BVD1R2

onsemi
32D-UC3845BVD1R2

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