UCC3583NG4 Equivalent & Substitute Parts

Part Overview

The UCC3583NG4 is a secondary-side controller IC designed for power supply applications. Manufactured by Texas Instruments, this component operates as a switch-mode power supply controller in a 14-DIP through-hole package. The product is classified as obsolete, making equivalent substitutes necessary for new designs and production continuity. The UCC3583NG4 maintains compatibility with systems requiring secondary-side control functionality within the specified voltage and thermal operating ranges.

Substiute Parts

UCC3583NG4

Texas InstrumentsIn Stock: 968UCC3583NG4 Datasheet

Current PartRFQ

UCC3583D

UnitrodeIn Stock: 2264UCC3583D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCC3583NG4 is determined by the following critical parameters:

• Base product functionality: UCC3583 series secondary-side controller
• Supply voltage range: 8.9V ~ 14V
• Supply current: 3 mA
• Operating temperature range: 0°C ~ 70°C
• Electrical performance specifications

The UCC3583D qualifies as a manufacturer-recommended substitute because it maintains identical electrical specifications across all critical parameters. The primary difference is the package format: the UCC3583D uses a 14-SOIC surface-mount package instead of the through-hole 14-DIP configuration. This substitution is valid when PCB design accommodates surface-mount technology and when the functional requirements remain unchanged.

Parameter Comparison

Engineering Selection Recommendations

The UCC3583D is the manufacturer-recommended substitute for the UCC3583NG4. Selection between these parts depends on PCB assembly capabilities and design constraints:

• Through-hole requirement: Use UCC3583NG4 if existing PCB designs mandate through-hole mounting and inventory is available.
• Surface-mount capability: Use UCC3583D for new designs or production runs utilizing surface-mount assembly processes. The UCC3583D offers the advantage of active product status, ensuring long-term availability and supply chain stability.
• Compliance: Both parts meet ROHS3 compliance and carry identical export classification (EAR99). The UCC3583D's active status provides superior compliance documentation and support for future regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the UCC3583D directly replace the UCC3583NG4 on existing PCBs?

A: Direct PCB replacement is not possible without redesign. The UCC3583NG4 uses through-hole 14-DIP packaging, while the UCC3583D uses surface-mount 14-SOIC packaging. PCB layout and footprint modifications are required.

Q: Are the electrical specifications identical between UCC3583NG4 and UCC3583D?

A: Yes. Both parts maintain identical supply voltage range (8.9V ~ 14V), supply current (3 mA), and operating temperature range (0°C ~ 70°C). Functional performance is equivalent.

Q: Why is the UCC3583NG4 classified as obsolete?

A: The UCC3583NG4 is obsolete due to market transition toward surface-mount technology. The UCC3583D represents the active product line continuation with identical functionality in modern packaging.

Q: What is the significance of the UCC3583 base product number?

A: The UCC3583 base product number indicates the core controller design. Both the NG4 and D variants implement the same secondary-side controller architecture, differing only in package format and manufacturing status.

Q: Are there any compliance or certification differences?

A: Both parts carry identical ROHS3 compliance, MSL rating, and export classification (EAR99). No compliance differences exist between the two variants.