UCC3751D Equivalent & Substitute Parts

Part Overview

The UCC3751D is a Telecom IC Ring Generator Controller manufactured by Texas Instruments in a 16-SOIC surface mount package. This component functions as a ring generator controller for telecommunications applications. The product is classified as Obsolete, making identification of equivalent and substitute parts essential for system redesign, legacy system maintenance, and component procurement planning. Substitute parts must maintain functional compatibility while accommodating differences in electrical specifications and package configurations.

Substiute Parts

UCC3751D

Texas InstrumentsIn Stock: 807UCC3751D Datasheet

Current PartRFQ

UCC3750DW

UnitrodeIn Stock: 2287UCC3750DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UCC3751D are identified based on functional equivalence as a Ring Generator Controller. The primary substitute, UCC3750DW, shares the same core function and base product family (UCC375 series). Substitution compatibility is determined by the following criteria:

• Functional classification: Ring Generator Controller
• Number of circuits: 1
• Mounting type: Surface Mount
• Interface category: Telecom IC
• RoHS and regulatory compliance status

The UCC3750DW represents an active product alternative within the same product family, though it operates under different electrical specifications and uses a different package configuration (28-SOIC versus 16-SOIC).

Parameter Comparison

Engineering Selection Recommendations

The UCC3750DW is classified as an Active product, providing long-term availability and supply chain stability compared to the Obsolete UCC3751D. Both components are surface mount devices within the same functional category and share RoHS compliance or equivalent regulatory standing.

Selection between these parts requires evaluation of:

• Supply voltage requirements: UCC3751D operates at 12V; UCC3750DW operates at 5V
• Operating temperature range: UCC3751D supports -55°C to 125°C; UCC3750DW supports 0°C to 70°C
• Package footprint: UCC3751D uses 16-SOIC; UCC3750DW uses 28-SOIC, requiring PCB layout modification
• Current consumption: UCC3751D draws 1mA; UCC3750DW draws 500µA

Substitution is viable only when the target application can accommodate these electrical and physical differences.

Frequently Asked Questions (FAQ)

Q: Can UCC3750DW directly replace UCC3751D without circuit modification?

A: Direct replacement is not possible without circuit modification. The UCC3750DW operates at 5V supply voltage versus the UCC3751D's 12V requirement, and uses a 28-SOIC package versus 16-SOIC. Power supply and PCB layout changes are necessary.

Q: What is the primary reason to substitute the UCC3751D?

A: The UCC3751D is Obsolete. The UCC3750DW is an Active product offering continued availability and manufacturing support.

Q: Are both parts RoHS compliant?

A: The UCC3751D is ROHS3 Compliant. RoHS status for the UCC3750DW is not specified in available documentation.

Q: How do the operating temperature ranges differ?

A: The UCC3751D operates from -55°C to 125°C, supporting extended industrial temperature ranges. The UCC3750DW operates from 0°C to 70°C, suitable for commercial temperature environments.

Q: What package considerations apply to substitution?

A: The UCC3751D uses a 16-SOIC package (3.90mm width); the UCC3750DW uses a 28-SOIC package (7.50mm width). PCB footprint redesign is required for substitution.