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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersUC3845BVN
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UC3845BVN - onsemi

Manufacturer Part Number
UC3845BVN
Manufacturer
onsemi
Allelco Part Number
32D-UC3845BVN
ECAD Model
Parts Description
IC REG CTRLR BOOST/FLYBACK 8DIP
Package
8-DIP (0.300', 7.62mm)
Data sheet
UC3844B,45B & UC2844B,45B.pdf
Our certification
In stock: 3860

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Our certification

Specifications

UC3845BVN Tech Specifications
onsemi - UC3845BVN technical specifications, attributes, parameters and parts with similar specifications to onsemi - UC3845BVN

Product Attribute Attribute Value  
Manufacturer onsemi  
Voltage - Supply (Vcc/Vdd) 7.6V ~ 30V  
Topology Boost, Flyback  
Synchronous Rectifier No  
Supplier Device Package 8-PDIP  
Series -  
Serial Interfaces -  
Package / Case 8-DIP (0.300', 7.62mm)  
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 Through Hole  
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  

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

UC3845BVN

Manufacturer

onsemi

Introduction

The UC3845BVN is a high performance current mode PWM controller designed for off-line and DC-DC converter applications. It provides a wide range of features including frequency compensation, soft-start, current limiting, and thermal shutdown for improved reliability and performance.

Product Features and Performance

Frequency range up to 500kHz

Wide input voltage range of 7.6V to 30V

Maximum duty cycle of 48%

Current mode control for improved line and load regulation

Built-in soft-start and overcurrent protection

Product Advantages

Optimized for high-frequency, off-line and DC-DC converter applications

Excellent line and load regulation

Increased efficiency and reliability

Thermal shutdown protection

Key Reasons to Choose This Product

High-performance PWM controller for demanding power conversion applications

Robust features for improved system reliability

Wide operating voltage range for flexible design

Cost-effective solution for power conversion needs

Quality and Safety Features

Thermal shutdown protection

Overcurrent protection

Compatibility

The UC3845BVN is compatible with a variety of power conversion topologies, including boost, flyback, and other off-line and DC-DC converter designs.

Application Areas

Off-line power supplies

DC-DC converters

Telecom and industrial power conversion

Appliance and motor control applications

Product Lifecycle

The UC3845BVN is an obsolete product, meaning it is no longer in active production. However, there are equivalent or alternative models available from our website's sales team, such as the UC3845A, UC3845B, and UC3846 series. Customers are advised to contact our website's sales team for more information on available options and product support.

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi UC3845BVN

Product Attribute UC3845BVN UC3845D8TRG4 UC3845BVD1G UC3845D8TR
Part Number UC3845BVN UC3845D8TRG4 UC3845BVD1G UC3845D8TR
Manufacturer onsemi Texas Instruments onsemi Texas Instruments
Output Phases 1 1 1 1
Supplier Device Package 8-PDIP 8-SOIC 8-SOIC 8-SOIC
Package Tube Tape & Reel (TR) Tube Tape & Reel (TR)
Duty Cycle (Max) 48% 48% 48% 48%
Mounting Type Through Hole Surface Mount Surface Mount Surface Mount
Package / Case 8-DIP (0.300', 7.62mm) 8-SOIC (0.154', 3.90mm Width) 8-SOIC (0.154', 3.90mm Width) 8-SOIC (0.154', 3.90mm Width)
Output Configuration Positive, Isolation Capable Positive, Isolation Capable Positive, Isolation Capable Positive, Isolation Capable
Function Step-Up, Step-Up/Step-Down Step-Up, Step-Down, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Up, Step-Down, Step-Up/Step-Down
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Voltage - Supply (Vcc/Vdd) 7.6V ~ 30V 12V ~ 28V 7.6V ~ 30V 12V ~ 28V
Serial Interfaces - - - -
Synchronous Rectifier No No No No
Topology Boost, Flyback Boost, Buck, Buck-Boost, Flyback, Forward Boost, Flyback Boost, Buck, Buck-Boost, Flyback, Forward
Number of Outputs 1 1 1 1
Frequency - Switching Up to 500kHz Up to 500kHz Up to 500kHz Up to 500kHz
Series - - - -
Operating Temperature -40°C ~ 105°C (TA) 0°C ~ 70°C (TA) -40°C ~ 105°C (TA) 0°C ~ 70°C (TA)
Control Features Frequency Control Frequency Control Frequency Control Frequency Control
Clock Sync No No No No
Base Product Number UC3845 UC3845 UC3845 UC3845

UC3845BVN Datasheet PDF

Download UC3845BVN pdf datasheets and onsemi documentation for UC3845BVN - onsemi.

Datasheets
UC3844B,45B & UC2844B,45B.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

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UC3845BVN Image

UC3845BVN

onsemi
32D-UC3845BVN

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