UCC2751D Equivalent & Substitute Parts

Part Overview

The UCC2751D is a telecom interface IC functioning as a ring generator controller, manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The UCC2751D operates at 12V supply voltage with 1mA current consumption across an operating temperature range of -55°C to 125°C.

Substiute Parts

UCC2751D

Texas InstrumentsIn Stock: 1142UCC2751D Datasheet

Current PartRFQ

UCC2750DW

Texas InstrumentsIn Stock: 2391UCC2750DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCC2751D is determined by the following critical parameters:

• Functional equivalence: Ring generator controller functionality
• Manufacturer continuity: Texas Instruments product line
• Interface category: Telecom interface classification
• Surface mount compatibility: Shared mounting technology
• Regulatory compliance: ROHS3 and REACH compliance status
• Supply voltage and current specifications: Operating power requirements
• Temperature operating range: Thermal performance envelope
• Package form factor: Physical dimensions and pin configuration

The UCC2750DW is identified as the manufacturer-recommended substitute, maintaining functional equivalence within the Texas Instruments telecom interface product family while accommodating design flexibility through package and electrical specification variations.

Parameter Comparison

Engineering Selection Recommendations

The UCC2750DW is the manufacturer-recommended substitute for the obsolete UCC2751D. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current production environments.

Design considerations for substitution include:

• Package transition: Migration from 16-SOIC to 28-SOIC requires PCB layout modification and pin mapping verification
• Supply voltage adjustment: Transition from 12V to 5V operation necessitates power supply circuit redesign
• Temperature range reduction: Operating range narrows from -55°C to -40°C minimum; verify compatibility with application thermal requirements
• Current consumption improvement: Reduced supply current (500µA vs. 1mA) provides power efficiency benefits
• Product status: UCC2750DW carries Last Time Buy status; long-term availability planning is recommended

Frequently Asked Questions (FAQ)

Q: Can the UCC2750DW directly replace the UCC2751D without circuit modifications?

A: No. The UCC2750DW requires circuit modifications due to different supply voltage (5V vs. 12V), package form factor (28-SOIC vs. 16-SOIC), and pin configuration. PCB redesign and power supply circuit adjustment are necessary.

Q: What are the key electrical differences between these parts?

A: The primary differences are supply voltage (12V to 5V), supply current (1mA to 500µA), and operating temperature range (-55°C to -40°C minimum). These differences require design validation before implementation.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the UCC2751D and UCC2750DW are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What is the significance of the product status difference?

A: The UCC2751D is obsolete, indicating end-of-life status with no further manufacturing. The UCC2750DW is Last Time Buy, indicating limited remaining availability. Both statuses necessitate design transition planning and inventory management.

Q: How do the package differences affect PCB design?

A: The UCC2751D uses 16-SOIC (3.90mm width) while the UCC2750DW uses 28-SOIC (7.50mm width). The larger package requires increased PCB footprint space and modified trace routing. Pin count and configuration differences require complete schematic and layout revision.

Q: What is the moisture sensitivity implication?

A: The UCC2751D has MSL 1 (unlimited shelf life), while the UCC2750DW has MSL 2 (1-year shelf life). The UCC2750DW requires stricter storage and handling protocols to maintain component reliability.