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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersUC3846DW
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UC3846DW - Texas Instruments

Manufacturer Part Number
UC3846DW
Manufacturer
Texas Instruments
Allelco Part Number
32D-UC3846DW
ECAD Model
Parts Description
IC REG CTRLR MULT TOP 16SOIC
Package
16-SOIC (0.295', 7.50mm Width)
Data sheet
Cylindrical Battery Holders.pdf
UC1846/7, UC2846/7, UC3846/7.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 14356

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Specifications

UC3846DW Tech Specifications
Texas Instruments - UC3846DW technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - UC3846DW

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage - Supply (Vcc/Vdd) 6.95V ~ 40V  
Topology Boost, Flyback, Forward Converter, Half-Bridge, Push-Pull  
Synchronous Rectifier Yes  
Supplier Device Package 16-SOIC  
Series -  
Serial Interfaces -  
Package / Case 16-SOIC (0.295', 7.50mm Width)  
Package Tube  
Output Type Transistor Driver  
Output Phases 1  
Product Attribute Attribute Value  
Output Configuration Positive  
Operating Temperature 0°C ~ 70°C (TA)  
Number of Outputs 2  
Mounting Type Surface Mount  
Function Step-Up, Step-Up/Step-Down  
Frequency - Switching 500kHz  
Duty Cycle (Max) 50%  
Control Features Current Limit, Enable, Frequency Control, Soft Start  
Clock Sync Yes  
Base Product Number UC3846  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2 (1 Year)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

UC3846DW

Manufacturer

Texas Instruments

Introduction

The UC3846DW is a high-performance DC DC switching controller designed for Power Management and primarily used in converting electrical power efficiently.

Product Features and Performance

Dual output transistor driver

Supports step-up, step-up/step-down functions

Configurable for boost, flyback, forward converter, half-bridge, and push-pull topologies

Capable of handling switching frequencies up to 500 kHz

Maximum duty cycle of 50%

Features synchronous rectification for efficiency

Equipped with clock synchronization

Product Advantages

Versatile topological options cater to diverse power solutions

Integrated features such as current limit and soft start improve reliability and performance

High switching frequency enables compact solutions with smaller passive components

Key Technical Parameters

Output Type: Transistor Driver

Number of Outputs: 2

Output Phases: 1

Voltage Supply (Vcc/Vdd): 6.95V ~ 40V

Frequency Switching: 500kHz

Duty Cycle (Max): 50%

Operating Temperature: 0°C ~ 70°C (TA)

Quality and Safety Features

Current limiting for protection against overcurrent conditions

Soft start minimizes inrush current, enhancing safety

Compatibility

Mounting Type: Surface Mount

Package / Case: 16-SOIC (0.295", 7.50mm Width)

Application Areas

Suitable for complex power regulation systems in consumer electronics

Ideal for communication equipment, networking setups, and industrial applications

Product Lifecycle

Product Status: Active

Ensured long-term availability, not nearing discontinuation

Backed by Texas Instruments' robust support and provisioning

Several Key Reasons to Choose This Product

High efficiency and versatile output configurations make it suitable for a wide range of power applications

Built-in protection features enhance component lifetime and reliability

Supported by Texas Instruments, a leading manufacturer in semiconductor solutions

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments UC3846DW

Product Attribute UC3846DW UC3845DR2G UC3846DWTR UC3846N
Part Number UC3846DW UC3845DR2G UC3846DWTR UC3846N
Manufacturer Texas Instruments onsemi Texas Instruments Texas Instruments
Series - - - -
Output Configuration Positive Positive, Isolation Capable Positive Positive
Output Phases 1 1 1 1
Mounting Type Surface Mount Surface Mount Surface Mount Through Hole
Base Product Number UC3846 UC3845 UC3846 UC3846
Supplier Device Package 16-SOIC 14-SOIC 16-SOIC 16-PDIP
Frequency - Switching 500kHz Up to 500kHz 500kHz 500kHz
Topology Boost, Flyback, Forward Converter, Half-Bridge, Push-Pull Boost, Flyback Boost, Flyback, Forward Converter, Half-Bridge, Push-Pull Boost, Flyback, Forward Converter, Half-Bridge, Push-Pull
Package Tube Tape & Reel (TR) Tape & Reel (TR) Tube
Serial Interfaces - - - -
Clock Sync Yes No Yes Yes
Function Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down
Number of Outputs 2 1 2 2
Package / Case 16-SOIC (0.295', 7.50mm Width) 14-SOIC (0.154', 3.90mm Width) 16-SOIC (0.295', 7.50mm Width) 16-DIP (0.300', 7.62mm)
Voltage - Supply (Vcc/Vdd) 6.95V ~ 40V 7.6V ~ 30V 6.95V ~ 40V 6.95V ~ 40V
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Control Features Current Limit, Enable, Frequency Control, Soft Start Frequency Control Current Limit, Enable, Frequency Control, Soft Start Current Limit, Enable, Frequency Control, Soft Start
Synchronous Rectifier Yes No Yes Yes
Operating Temperature 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Duty Cycle (Max) 50% 48% 50% 50%

UC3846DW Datasheet PDF

Download UC3846DW pdf datasheets and Texas Instruments documentation for UC3846DW - Texas Instruments.

Datasheets
Cylindrical Battery Holders.pdf
HTML Datasheet
UC1846/7, UC2846/7, UC3846/7.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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UC3846DW

Texas Instruments
32D-UC3846DW

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