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UCC28740DR The Texas Instruments UCC28740DR is an isolated flyback controller designed for Constant-Voltage, Constant-Current (CVCC) applications. It operates within a 9V to 35V input voltage range.
Mfr Part #:

UCC28740DR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC28740DR is an isolated flyback controller designed for Constant-Voltage, Constant-Current (CVCC) applications. It operates within a 9V to 35V input voltage range.
✓ Total Stock: 16,291 pcs
$ Price Range: $0.42

UCC28740DR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
13,745 pcs
On Request
13745 pcs On Request 1 On Request On Request 21+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,531 pcs
On Request
1531 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
1,015 pcs
On Request
1015 pcs On Request 1 On Request On Request 21+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

UCC28740DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Fault Protection
Frequency
Industrial Grade
Internal Switch(s)
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Output Isolation
Supplier Device Package
Topology
Voltage
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UCC28740DR Description

Short technical summary and product information.

The UCC28740DR from Texas Instruments is an active, isolated flyback controller featuring Secondary Side Regulation (SSR) for Constant-Voltage, Constant-Current (CVCC) output. This device is designed for high-power-density charger applications, supporting a maximum switching frequency of 100 kHz.

 

Key electrical characteristics include an input voltage range of 9V to 35V and fault protection features such as current limiting and overvoltage protection. The controller utilizes valley switching operation for enhanced efficiency and frequency dithering to aid EMI compliance. It is housed in a 7-SOIC package suitable for surface mounting.

 

This component is well-suited for applications requiring precise voltage and current regulation across varying line and load conditions. Its isolated topology and integrated features simplify the design of efficient power supplies.

UCC28740DR Quick Information

Product Type: AC/DC Switching Regulator
Canonical Name: UCC28740DR Constant-Voltage Constant-Current Flyback Controller
Subcategory: AC/DC switching regulators

UCC28740DR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

UCC28740DR Estimated Pricing

Qty Low High
1+ $0.42 $0.42

Estimated market price range - modelled values for guidance only, not live distributor offers.

UCC28740DR Features

  • Isolated flyback controller with SSR
  • Constant-Voltage, Constant-Current control
  • Operates from 9V to 35V input
  • 100kHz maximum switching frequency
  • Surface mount 7-SOIC package

UCC28740DR Applications

  • Offline AC-DC flyback power supplies.
  • Isolated DC-DC converter designs.
  • Industrial and consumer power adapters.
  • Auxiliary power supply for appliances.

UCC28740DR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UCC28740DR?

The operating voltage range is 9 V to 35 V.

What is the operating temperature range for the UCC28740DR?

The operating temperature range is -40°C to 125°C (TJ).

What package type is the UCC28740DR available in?

The UCC28740DR is available in a 7-SOIC package suitable for surface mounting.

What fault protection features does the UCC28740DR offer?

The UCC28740DR offers current limiting and overvoltage protection.

What is the switching frequency of the UCC28740DR?

The switching frequency ranges from 170 Hz to 100 kHz.

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