UCC28880DR Equivalent & Substitute Parts

Part Overview

The UCC28880DR is an offline switch IC designed for power management applications supporting buck, buck-boost, and flyback converter topologies. This device operates at 62kHz switching frequency with a 700V breakdown voltage rating and integrated fault protection including current limiting, overload, over-temperature, and short-circuit protection.

The UCC28880DR carries a "Not For New Designs" product status, indicating Texas Instruments has transitioned this component out of active development. For new design implementations and long-term supply chain stability, identifying functionally equivalent alternatives is essential.

Substiute Parts

UCC28880DR

Texas InstrumentsIn Stock: 22660UCC28880DR Datasheet

Current PartRFQ

UCC28881DR

Texas InstrumentsIn Stock: 134226UCC28881DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UCC28880DR is determined by the following critical parameters:

• Package Compatibility: Identical 8-SOIC (0.154", 3.90mm Width) surface mount package with 7 leads
• Electrical Specifications: Matching 700V breakdown voltage, 62kHz switching frequency, and buck/buck-boost/flyback topology support
• Fault Protection: Equivalent current limiting, overload, over-temperature, and short-circuit protection features
• Supply Voltage Range: Compatible Vcc/Vdd operating range
• Compliance Standards: ROHS3 compliance and equivalent MSL rating

The UCC28881DR meets all substitution criteria as a direct equivalent, with the primary distinction being its active product status and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The UCC28881DR is the manufacturer-recommended substitute for the UCC28880DR. Both devices share identical electrical specifications, package geometry, and fault protection architecture, enabling direct functional replacement in existing circuit designs.

The UCC28881DR carries active product status from Texas Instruments, ensuring continued availability and manufacturing support. This status distinction makes the UCC28881DR the preferred choice for new design implementations and applications requiring extended component lifecycle assurance.

Both parts maintain ROHS3 compliance and equivalent moisture sensitivity ratings, satisfying regulatory and environmental requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the UCC28881DR replace the UCC28880DR in existing designs?

A: Yes. The UCC28881DR provides direct functional equivalence with identical package, electrical specifications, switching frequency, topology support, and fault protection features. No circuit modifications are required for substitution.

Q: What is the primary difference between these parts?

A: The UCC28880DR is designated "Not For New Designs" while the UCC28881DR maintains active product status. The UCC28881DR also specifies an extended operating temperature range to 125°C (TJ) compared to 105°C (TA) for the UCC28880DR.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package with 7 leads, ensuring mechanical and electrical compatibility on existing PCB layouts.

Q: Do both parts support the same converter topologies?

A: Yes. Both the UCC28880DR and UCC28881DR support buck, buck-boost, and flyback converter topologies at 62kHz switching frequency with 700V breakdown voltage rating.

Q: Are there supply voltage differences?

A: The UCC28880DR specifies a supply range of 3.6V ~ 5V, while the UCC28881DR specifies 5V. Applications operating at the lower end of the 3.6V range should verify compatibility with the UCC28881DR specification.

Q: Do both parts include equivalent fault protection?

A: Yes. Both devices integrate current limiting, overload, over-temperature, and short-circuit protection with identical protection architecture.