UCC35702NG4 Equivalent & Substitute Parts

Part Overview

The UCC35702NG4 is a multi-topology DC-DC controller IC manufactured by Texas Instruments, designed for boost, flyback, and forward converter applications. This component functions as a transistor driver for step-up and step-up/step-down topologies with positive, isolation-capable output configuration. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

UCC35702NG4

Texas InstrumentsIn Stock: 776UCC35702NG4 Datasheet

Current PartRFQ

UCC35702N

Texas InstrumentsIn Stock: 1187UCC35702N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCC35702NG4 is determined by strict equivalence across the following critical parameters:

• Output type and function (transistor driver for step-up/step-up-step-down topologies)
• Output configuration (positive, isolation capable)
• Supported topologies (boost, flyback, forward converter)
• Supply voltage range (8.8V ~ 15V)
• Switching frequency (100kHz)
• Maximum duty cycle (99%)
• Control features (current limit, frequency control, sequencing, soft start)
• Package type (14-DIP through-hole)
• Operating temperature range (0°C ~ 70°C)
• Compliance certifications (ROHS3, REACH Unaffected)

The UCC35702N is identified as a manufacturer-recommended substitute based on identical electrical specifications and package configuration.

Parameter Comparison

Engineering Selection Recommendations

The UCC35702N is a direct functional equivalent to the UCC35702NG4. Both components share identical electrical specifications, control features, and package configuration. The UCC35702N maintains full ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the original part.

Selection between these parts should be based on availability and product status. The UCC35702NG4 is discontinued at DiGi Electronics, while the UCC35702N is listed as obsolete. For new designs or production continuity, component availability through authorized distributors should be verified prior to final selection.

Frequently Asked Questions (FAQ)

Q: Can the UCC35702N be used as a direct replacement for the UCC35702NG4?

A: Yes. Both parts are manufactured by Texas Instruments and share identical electrical specifications, control features, output configuration, and 14-DIP package. No circuit modifications are required for substitution.

Q: Are there differences in compliance or certifications between these parts?

A: No. Both the UCC35702NG4 and UCC35702N maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity levels (MSL 1, Unlimited).

Q: What are the key parameters that define substitutability for this component?

A: Substitutability is determined by matching output type (transistor driver), function (step-up/step-up-step-down), output configuration (positive, isolation capable), supported topologies (boost, flyback, forward converter), supply voltage range (8.8V ~ 15V), switching frequency (100kHz), duty cycle (99%), control features, operating temperature range (0°C ~ 70°C), and package type (14-DIP through-hole).

Q: Are there any package or pinout differences between these parts?

A: No. Both components use the 14-DIP (0.300", 7.62mm) through-hole package with identical pinout and mechanical specifications.

Q: What should be considered when sourcing these parts?

A: Both the UCC35702NG4 and UCC35702N are listed as discontinued or obsolete at primary distributors. Availability should be confirmed through authorized Texas Instruments distributors or secondary market sources before committing to production quantities.