UCC28083D Equivalent & Substitute Parts

Part Overview

The UCC28083D is an offline switch controller IC designed for push-pull converter topologies, manufactured by Texas Instruments. This Power Management (PMIC) device operates across a switching frequency range of 50kHz to 1MHz and is housed in an 8-SOIC surface mount package. The UCC28083D is currently in Last Time Buy status, making identification of equivalent and substitute parts essential for design continuity and procurement planning. Alternative models ensure uninterrupted supply chains for applications requiring offline push-pull power conversion with current limiting fault protection.

Substiute Parts

UCC28083D

Texas InstrumentsIn Stock: 3409UCC28083D Datasheet

Current PartRFQ

UCC28083DR

Texas InstrumentsIn Stock: 2248UCC28083DR Datasheet

MFR RecommendedRFQ

UCC28085D

Texas InstrumentsIn Stock: 882UCC28085D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UCC28083D are identified based on strict electrical and mechanical parameter alignment. The substitution criteria are:

Primary Substitution Criteria:

• Identical topology (Push-Pull)
• Matching voltage supply range (8.3V ~ 15V)
• Identical switching frequency range (50kHz ~ 1MHz)
• Matching duty cycle (49%)
• Identical fault protection method (Current Limiting)
• Identical control features (Frequency Control)
• Matching output isolation (Isolated)
• Identical operating temperature range (-40°C ~ 85°C)
• Identical package type (8-SOIC)
• Identical mounting type (Surface Mount)

Substitute Parts Identified:

1. UCC28083DR - Manufacturer Recommended Substitute: Identical electrical specifications with alternative packaging (Cut Tape & Digi-Reel). Active product status ensures long-term availability.

2. UCC28085D - Parametric Equivalent: Meets all electrical and mechanical parameters with identical package configuration. Last Time Buy status similar to main part.

Parameter Comparison

Engineering Selection Recommendations

UCC28083DR Selection: UCC28083DR is the manufacturer-recommended substitute and represents the optimal choice for new designs and long-term procurement. This part maintains identical electrical specifications while offering Active product status, ensuring sustained availability and manufacturing support. The alternative packaging format (Cut Tape & Digi-Reel) accommodates high-volume automated assembly processes. Current inventory of 2170 units supports immediate deployment.

UCC28085D Selection: UCC28085D qualifies as a parametric equivalent, meeting all electrical and mechanical requirements for direct substitution. This option is suitable for applications where tube packaging is preferred or where existing supply chain relationships favor this variant. Last Time Buy status requires strategic inventory planning. Current inventory of 868 units supports near-term requirements.

Compliance Considerations: All three parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment across automotive, industrial, and consumer applications. Moisture Sensitivity Level 1 (Unlimited) eliminates moisture-related handling constraints during assembly and storage.

Frequently Asked Questions (FAQ)

Q: Can UCC28083DR be used as a direct replacement for UCC28083D in existing designs? A: Yes. UCC28083DR is electrically and mechanically identical to UCC28083D. The only difference is packaging format (Cut Tape & Digi-Reel versus Tube). PCB layout and circuit design require no modification.

Q: What is the primary advantage of selecting UCC28083DR over UCC28083D? A: UCC28083DR carries Active product status, ensuring long-term manufacturing support and availability. UCC28083D is in Last Time Buy status, making UCC28083DR the preferred choice for new designs and sustained production.

Q: Is UCC28085D functionally equivalent to UCC28083D? A: Yes. UCC28085D meets all specified electrical parameters, switching characteristics, and thermal requirements. Both parts are suitable for identical push-pull converter applications within the specified operating range.

Q: Are there package compatibility concerns when substituting between these parts? A: No. All three parts use identical 8-SOIC (0.154", 3.90mm Width) surface mount packages. PCB footprints, solder reflow profiles, and assembly processes remain unchanged.

Q: Do these substitutes require different circuit design considerations? A: No. Identical voltage supply ranges (8.3V ~ 15V), switching frequency capabilities (50kHz ~ 1MHz), and control features eliminate design modifications. Frequency control and current limiting fault protection operate identically across all three parts.

Q: What inventory considerations should guide part selection? A: UCC28083DR offers the highest current inventory (2170 units) with Active status, supporting immediate and sustained procurement. UCC28083D (3300 units, Last Time Buy) and UCC28085D (868 units, Last Time Buy) require strategic planning for long-term supply assurance.