UCC2583D Equivalent & Substitute Parts

Part Overview

The UCC2583D is a secondary-side controller IC manufactured by Texas Instruments, designed for power supply applications. It operates with a supply voltage range of 8.9V to 14V and delivers 3 mA supply current in a 14-SOIC surface mount package. The device is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring secondary-side power supply control functionality.

Substiute Parts

UCC2583D

Texas InstrumentsIn Stock: 2301UCC2583D Datasheet

Current PartRFQ

UCC2583DTR

Texas InstrumentsIn Stock: 1565UCC2583DTR Datasheet

MFR RecommendedRFQ

MAX16071ETL+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1031MAX16071ETL+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UCC2583D is determined by the following critical parameters:

Primary Substitution Criteria:

• Supply voltage range compatibility (8.9V ~ 14V minimum requirement)
• Surface mount packaging capability
• Operating temperature range (-40°C ~ 85°C minimum)
• RoHS3 compliance
• Secondary-side power supply control functionality

Substitution Logic:

The UCC2583DTR qualifies as a direct substitute based on identical electrical specifications and functional design. The only difference is packaging format (Tape & Reel versus Tube), which does not affect electrical performance or board-level compatibility.

The MAX16071ETL+T represents a functional alternative for applications where package footprint constraints permit a larger form factor. While it operates within compatible voltage and temperature ranges, it functions as a power supply monitor rather than a dedicated secondary-side controller, requiring design-level evaluation for functional equivalence in specific applications.

Parameter Comparison

Engineering Selection Recommendations

UCC2583DTR (Recommended Direct Substitute): This part is the preferred substitute for UCC2583D applications. It maintains identical electrical specifications, functional design, and package footprint. The only distinction is packaging format (Tape & Reel), which provides superior supply chain availability as an active product. This substitution requires no design modifications and is suitable for direct replacement in existing PCB layouts.

MAX16071ETL+T (Functional Alternative): This part is suitable only for applications where the larger 40-TQFN package footprint can be accommodated on the PCB. The extended lower voltage supply range (2.8V minimum) provides additional operational flexibility. However, functional differences between a secondary-side controller and a power supply monitor require circuit-level design evaluation to confirm compatibility with the intended application. This substitution is not recommended for direct pin-for-pin replacement.

Frequently Asked Questions (FAQ)

Q: Can UCC2583DTR be used as a direct replacement for UCC2583D? A: Yes. Both parts share identical electrical specifications, functional design, and 14-SOIC package dimensions. The difference in packaging format (Tape & Reel versus Tube) does not affect electrical performance or PCB compatibility. No design modifications are required.

Q: What is the primary difference between UCC2583D and UCC2583DTR? A: The parts are electrically and functionally identical. UCC2583D is supplied in Tube packaging, while UCC2583DTR is supplied in Tape & Reel format. This distinction affects only supply chain logistics and handling, not component performance.

Q: Is MAX16071ETL+T a suitable substitute for UCC2583D? A: MAX16071ETL+T operates within compatible voltage and temperature ranges and meets RoHS3 compliance requirements. However, it functions as a power supply monitor rather than a secondary-side controller. Functional equivalence must be evaluated at the circuit design level. The larger 40-TQFN package also requires PCB layout modifications.

Q: What are the critical parameters for substitution compatibility? A: Supply voltage range (minimum 8.9V ~ 14V), operating temperature range (-40°C ~ 85°C), surface mount capability, and RoHS3 compliance are the primary determinants. Functional design (secondary-side control versus monitoring) must also be considered for application-specific compatibility.

Q: Can these substitutes be used interchangeably in all applications? A: UCC2583DTR can be used interchangeably with UCC2583D without design changes. MAX16071ETL+T requires circuit-level evaluation due to functional differences and package size differences. Direct interchangeability is not guaranteed without design review.

Q: What is the significance of the Last Time Buy status for UCC2583D? A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part. Existing inventory will be depleted, and no future manufacturing runs are planned. Transitioning to UCC2583DTR (active product status) ensures long-term supply chain continuity.