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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersUC2856N
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UC2856N - Unitrode

Manufacturer Part Number
UC2856N
Manufacturer
Unitrode
Allelco Part Number
32D-UC2856N
ECAD Model
Parts Description
UC2856 IMPROVED CURRENT MODE PWM
Detailed Description
Package
16-DIP (0.300", 7.62mm)
Data sheet
UC2856 Datasheet.pdf
Our certification
In stock: 9970

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Specifications

UC2856N Tech Specifications
Unitrode - UC2856N technical specifications, attributes, parameters and parts with similar specifications to Unitrode - UC2856N

Product Attribute Attribute Value  
Manufacturer Unitrode  
Voltage - Supply (Vcc/Vdd) 7V ~ 40V  
Topology Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull  
Synchronous Rectifier Yes  
Supplier Device Package 16-PDIP  
Series -  
Serial Interfaces -  
Package / Case 16-DIP (0.300", 7.62mm)  
Package Bulk  
Output Type Transistor Driver  
Output Phases 1  
Product Attribute Attribute Value  
Output Configuration Positive  
Operating Temperature -40°C ~ 85°C (TA)  
Number of Outputs 2  
Mounting Type Through Hole  
Function Step-Up, Step-Up/Step-Down  
Frequency - Switching 200kHz  
Duty Cycle (Max) 47%  
Control Features Enable, Frequency Control, Soft Start  
Clock Sync Yes  
Base Product Number UC2856  

Parts Introduction

Manufacturer Part Number

UC2856N

Manufacturer

Texas Instruments

Introduction

The UC2856N is a high-performance, regulated, switched-mode power supply controller with two independent outputs. It is designed to provide a cost-effective solution for a wide range of step-up, step-up/step-down, and other power conversion applications.

Product Features and Performance

Operates over a wide input voltage range of 7V to 40V

Switching frequency of 200kHz

Maximum duty cycle of 47%

Supports synchronous rectification

Provides clock synchronization capability

Includes enable, frequency control, and soft-start features

Operates over a temperature range of -40°C to 85°C

Product Advantages

Versatile power conversion capabilities (step-up, step-up/step-down, and others)

Wide input voltage range for use in diverse applications

High-frequency operation for smaller passive component size

Synchronous rectification for improved efficiency

Clock synchronization for system-level optimization

Comprehensive control features for flexible design implementation

Key Reasons to Choose This Product

Cost-effective power management solution

Reliable and robust performance across a wide range of operating conditions

Ease of integration and design flexibility

Proven Texas Instruments quality and support

Quality and Safety Features

Designed and manufactured to Texas Instruments' high-quality standards

Supports safe and reliable operation in various applications

Compatibility

The UC2856N is a through-hole, 16-pin DIP package device that can be easily integrated into a wide range of power supply designs.

Application Areas

Step-up, step-up/step-down, and other power conversion applications

Industrial and commercial power supplies

Automotive and transportation systems

Telecommunications and networking equipment

Household and consumer electronics

Product Lifecycle

The UC2856N is currently in the Last Time Buy phase, meaning it is nearing the end of its product lifecycle. However, Texas Instruments offers several equivalent and alternative models that can be considered as replacements, such as the UC2857 and UC3856 series. Customers are advised to contact our website's sales team for more information and recommendations on suitable alternative products.

Parts with Similar Specifications

The three parts on the right have similar specifications to Unitrode UC2856N

Product Attribute UC2856N UC2856DW UC2856QDWRQ1 UC2856DWTRG4
Part Number UC2856N UC2856DW UC2856QDWRQ1 UC2856DWTRG4
Manufacturer Unitrode Texas Instruments Texas Instruments Texas Instruments
Output Configuration Positive Positive Positive Positive
Clock Sync Yes Yes Yes Yes
Package Bulk Tube Tape & Reel (TR) Tape & Reel (TR)
Package / Case 16-DIP (0.300", 7.62mm) 16-SOIC (0.295', 7.50mm Width) 16-SOIC (0.295", 7.50mm Width) 16-SOIC (0.295', 7.50mm Width)
Voltage - Supply (Vcc/Vdd) 7V ~ 40V 7V ~ 40V 7V ~ 40V 7V ~ 40V
Frequency - Switching 200kHz 200kHz 200kHz 200kHz
Supplier Device Package 16-PDIP 16-SOIC 16-SOIC 16-SOIC
Duty Cycle (Max) 47% 47% 47% 47%
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Base Product Number UC2856 UC2856 UC2856 UC2856
Synchronous Rectifier Yes Yes Yes Yes
Topology Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
Serial Interfaces - - - -
Mounting Type Through Hole Surface Mount Surface Mount Surface Mount
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 125°C (TJ) -40°C ~ 85°C (TA)
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
Output Phases 1 1 1 1
Number of Outputs 2 2 2 2
Control Features Enable, Frequency Control, Soft Start Enable, Frequency Control, Soft Start Enable, Frequency Control, Soft Start Enable, Frequency Control, Soft Start
Series - - - -

UC2856N Datasheet PDF

Download UC2856N pdf datasheets and Unitrode documentation for UC2856N - Unitrode.

Datasheets
UC2856 Datasheet.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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UC2856N Image

UC2856N

Unitrode
32D-UC2856N

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