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HomeProductsIntegrated Circuits (ICs)PMIC - AC DC Converters, Offline SwitchersUC3851DWTR
UC3851DWTR Image
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See specifications for product details.

UC3851DWTR - Texas Instruments

Manufacturer Part Number
UC3851DWTR
Manufacturer
Texas Instruments
Allelco Part Number
32D-UC3851DWTR
ECAD Model
Parts Description
IC OFFLINE SW MULT TOP 18SOIC
Detailed Description
Package
18-SOIC (0.295", 7.50mm Width)
Data sheet
UC1851, 2851, 3851.pdf
UC1851, 2851, 3851.pdf
RoHs Status
ROHS3 Compliant
In stock: 2304

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Quantity

Specifications

UC3851DWTR Tech Specifications
Texas Instruments - UC3851DWTR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - UC3851DWTR

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage - Supply (Vcc/Vdd) 7.8V ~ 32V  
Voltage - Start Up 8 V  
Voltage - Breakdown -  
Topology Boost, Buck, Flyback, Forward  
Supplier Device Package 18-SOIC  
Series -  
Package / Case 18-SOIC (0.295", 7.50mm Width)  
Package Tape & Reel (TR)  
Product Attribute Attribute Value  
Output Isolation -  
Operating Temperature 0°C ~ 70°C (TA)  
Mounting Type Surface Mount  
Internal Switch(s) No  
Frequency - Switching Up to 500kHz  
Fault Protection Current Limiting, Over Voltage  
Duty Cycle 50%  
Control Features Frequency Control, Soft Start  
Base Product Number UC3851  

Parts Introduction

Manufacturer Part Number

UC3851DWTR

Manufacturer

Texas Instruments

Introduction

The UC3851DWTR is a high-performance, versatile power management integrated circuit (PMIC) designed for offline switching power supply applications.

Product Features and Performance

Operates at switching frequencies up to 500 kHz

Supports various converter topologies including boost, buck, flyback, and forward

Operates with a wide supply voltage range of 7.8V to 32V

Provides frequency control and soft-start functionality

Includes current limiting and over-voltage fault protection

Product Advantages

Offers high-efficiency and reliable power conversion

Flexible design with support for multiple converter topologies

Wide operating voltage range for diverse applications

Advanced control and protection features

Key Technical Parameters

Switching Frequency: Up to 500 kHz

Supply Voltage (Vcc/Vdd): 7.8V to 32V

Startup Voltage: 8V

Duty Cycle: 50%

Internal Switch: No

Quality and Safety Features

RoHS3 compliant

Provides current limiting and over-voltage protection

Compatibility

Can be used in a variety of offline switching power supply applications

Application Areas

Suitable for a wide range of power conversion applications, including industrial, consumer, and medical equipment

Product Lifecycle

Currently in active production

Replacement and upgrade options may be available from Texas Instruments

Key Reasons to Choose This Product

High-performance and reliable power conversion

Flexible design with support for multiple converter topologies

Wide operating voltage range for diverse applications

Advanced control and protection features for increased reliability

RoHS3 compliance for environmental considerations

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments UC3851DWTR

Product Attribute UC3851DWTR UC3851N UC3847N UC3849DWTR
Part Number UC3851DWTR UC3851N UC3847N UC3849DWTR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Topology Boost, Buck, Flyback, Forward Boost, Buck, Flyback, Forward Boost, Flyback, Forward Converter, Half-Bridge, Push-Pull -
Control Features Frequency Control, Soft Start Frequency Control, Soft Start Current Limit, Enable, Frequency Control, Soft Start -
Supplier Device Package 18-SOIC 18-PDIP 16-PDIP 24-SOIC
Operating Temperature 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Series - - - -
Package Tape & Reel (TR) Tube Tube Tape & Reel (TR)
Internal Switch(s) No No - -
Duty Cycle 50% 50% - -
Package / Case 18-SOIC (0.295", 7.50mm Width) 18-DIP (0.300", 7.62mm) 16-DIP (0.300', 7.62mm) 24-SOIC (0.295", 7.50mm Width)
Voltage - Supply (Vcc/Vdd) 7.8V ~ 32V 7.8V ~ 32V 6.95V ~ 40V -
Base Product Number UC3851 UC3851 UC3847 UC3849
Voltage - Breakdown - - - -
Output Isolation - - - -
Voltage - Start Up 8 V 8 V - -
Fault Protection Current Limiting, Over Voltage Current Limiting, Over Voltage - -
Frequency - Switching Up to 500kHz Up to 500kHz 500kHz -
Mounting Type Surface Mount Through Hole Through Hole Surface Mount

UC3851DWTR Datasheet PDF

Download UC3851DWTR pdf datasheets and Texas Instruments documentation for UC3851DWTR - Texas Instruments.

Datasheets
UC1851, 2851, 3851.pdf
HTML Datasheet
UC1851, 2851, 3851.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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UC3851DWTR Image

UC3851DWTR

Texas Instruments
32D-UC3851DWTR

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