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HomeProductsIntegrated Circuits (ICs)PMIC - AC DC Converters, Offline SwitchersUCC28740D
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UCC28740D - Texas Instruments

Manufacturer Part Number
UCC28740D
Manufacturer
Texas Instruments
Allelco Part Number
32D-UCC28740D
ECAD Model
Parts Description
IC OFFLINE SWITCH FLYBACK 7SOIC
Package
8-SOIC (0.154", 3.90mm Width), 7 Leads
Data sheet
UCC28740 Datasheet.pdf
RoHs Status
ROHS3 Compliant
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Specifications

UCC28740D Tech Specifications
Texas Instruments - UCC28740D technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - UCC28740D

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage - Supply (Vcc/Vdd) 9V ~ 35V  
Voltage - Start Up 21 V  
Voltage - Breakdown -  
Topology Flyback  
Supplier Device Package 7-SOIC  
Series -  
Package / Case 8-SOIC (0.154", 3.90mm Width), 7 Leads  
Package Tube  
Product Attribute Attribute Value  
Output Isolation Isolated  
Operating Temperature -40°C ~ 125°C (TJ)  
Mounting Type Surface Mount  
Internal Switch(s) No  
Frequency - Switching 170Hz ~ 100kHz  
Fault Protection Current Limiting, Over Voltage  
Duty Cycle -  
Control Features -  
Base Product Number UCC28740  

Environmental & Export Classifications

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

Parts Introduction

Manufacturer Part Number

UCC28740D

Manufacturer

Texas Instruments

Introduction

The UCC28740D is an AC/DC converter optimized for efficient power management.

Product Features and Performance

Efficient AC/DC power conversion

Flyback topology

Isolated output design

Adjustable switching frequency from 170Hz to 100kHz

Start-up voltage of 21V

Supply voltage range from 9V to 35V

Operating temperature range from -40°C to 125°C

No internal switch

Product Advantages

Precision in power regulation

Low standby power consumption

Enhanced system reliability

Key Technical Parameters

Topology: Flyback

Voltage - Start Up: 21V

Voltage - Supply: 9V ~ 35V

Frequency - Switching: 170Hz ~ 100kHz

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Current limiting for fault protection

Overvoltage protection

Compatibility

Suitable for applications requiring an isolated output

Can be integrated into a range of electronic systems due to its SOIC package

Application Areas

Power supplies for consumer electronics

Chargers for portable devices

Standby power for home appliances

Industrial power systems

Product Lifecycle

Active product status

Longevity commitment by Texas Instruments

Several Key Reasons to Choose This Product

Robust operation in extended temperature range

Energy-efficient design reducing power losses

High reliability for safety-critical applications

Versatility in handling variable input voltage conditions

Ease of integration into various circuit designs due to surface mount packaging

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments UCC28740D

Product Attribute UCC28740D UCC28740DR UCC28781QRTWRQ1 UCC28730QDRQ1
Part Number UCC28740D UCC28740DR UCC28781QRTWRQ1 UCC28730QDRQ1
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Package / Case 8-SOIC (0.154", 3.90mm Width), 7 Leads 8-SOIC (0.154", 3.90mm Width), 7 Leads 24-WFQFN Exposed Pad 8-SOIC (0.154", 3.90mm Width), 7 Leads
Duty Cycle - - - -
Package Tube Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Series - - Automotive, AEC-Q100 Automotive, AEC-Q100
Voltage - Breakdown - - - -
Output Isolation Isolated Isolated Isolated Isolated
Frequency - Switching 170Hz ~ 100kHz 170Hz ~ 100kHz 500kHz 32Hz ~ 83kHz
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Control Features - - Soft Start -
Fault Protection Current Limiting, Over Voltage Current Limiting, Over Voltage Current Limiting, Over Power, Over Temperature, Over Voltage, Short Circuit Current Limiting, Over Voltage
Voltage - Start Up 21 V 21 V 500 mV 21 V
Internal Switch(s) No No No No
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Voltage - Supply (Vcc/Vdd) 9V ~ 35V 9V ~ 35V 14V ~ 34V 9V ~ 35V
Base Product Number UCC28740 UCC28740 UCC28781 UCC28730
Topology Flyback Flyback Flyback, Secondary Side SR Flyback
Supplier Device Package 7-SOIC 7-SOIC 24-WQFN (4x4) 7-SOIC

UCC28740D Datasheet PDF

Download UCC28740D pdf datasheets and Texas Instruments documentation for UCC28740D - Texas Instruments.

HTML Datasheet
UCC28740 Datasheet.pdf

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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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UCC28740D Image

UCC28740D

Texas Instruments
32D-UCC28740D

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