UCC28083P Equivalent & Substitute Parts

Part Overview

The UCC28083P is an offline switch controller IC designed for push-pull converter topologies, operating across a frequency range of 50kHz to 1MHz. This Texas Instruments power management component is classified as obsolete, making identification of functional equivalents essential for ongoing system support and new design implementations. The part operates with an 8.3V to 15V supply voltage range and includes current limiting fault protection with frequency control features.

Substiute Parts

UCC28083P

Texas InstrumentsIn Stock: 3265UCC28083P Datasheet

Current PartRFQ

UCC28083D

Texas InstrumentsIn Stock: 3409UCC28083D Datasheet

MFR RecommendedRFQ

UCC28085P

Texas InstrumentsIn Stock: 3441UCC28085P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the UCC28083P is determined by strict equivalence across the following critical parameters: push-pull topology, isolated output configuration, 8.3V to 15V supply voltage range, 50kHz to 1MHz switching frequency, 49% duty cycle, current limiting fault protection, and frequency control capability. All substitute parts maintain identical electrical specifications and operating characteristics.

The UCC28083P has two primary substitutes:

UCC28083D — Manufacturer-recommended substitute with identical electrical specifications. Differs only in package format (8-SOIC surface mount versus 8-DIP through-hole).

UCC28085P — Parametric equivalent with identical electrical specifications and 8-DIP through-hole packaging. Differs only in base product number designation.

Parameter Comparison

Engineering Selection Recommendations

All three parts—UCC28083P, UCC28083D, and UCC28085P—maintain full electrical and functional equivalence. Selection between them is determined by mounting technology and product availability status.

UCC28083P and UCC28085P are both through-hole 8-DIP packages suitable for conventional PCB assembly. Both are classified as obsolete, indicating limited future availability.

UCC28083D is a surface-mount 8-SOIC package with Last Time Buy status, providing a transitional option for designs migrating to modern assembly processes. This part offers extended availability relative to the through-hole alternatives.

All parts carry ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), meeting current environmental and reliability standards.

Frequently Asked Questions (FAQ)

Q: Can UCC28083D replace UCC28083P in an existing design?

A: Electrical substitution is complete. Physical substitution requires PCB redesign due to package format differences (8-SOIC surface mount versus 8-DIP through-hole). Pin-to-pin functionality is identical.

Q: What is the difference between UCC28083P and UCC28085P?

A: These parts are parametric equivalents with identical electrical specifications, supply voltage range, switching frequency, and control features. The distinction is in base product number designation. Both use 8-DIP through-hole packaging.

Q: Are all three parts RoHS compliant?

A: Yes. UCC28083P, UCC28083D, and UCC28085P all carry ROHS3 compliance certification.

Q: Which substitute should be selected for new designs?

A: Selection depends on assembly capability and supply chain requirements. For through-hole assembly, either UCC28083P or UCC28085P is suitable. For surface-mount assembly, UCC28083D is the appropriate choice. Verify current inventory status with your supplier, as all parts are classified as obsolete or Last Time Buy.

Q: Do these parts require different PCB layouts?

A: UCC28083P and UCC28085P use identical 8-DIP through-hole packaging and require the same PCB footprint. UCC28083D uses 8-SOIC surface-mount packaging and requires a different footprint design.