UC3715NG4 Equivalent & Substitute Parts

Part Overview

The UC3715NG4 is a low-side gate driver IC manufactured by Texas Instruments, designed for driving N-Channel and P-Channel MOSFETs in synchronous switching applications. This component operates with a supply voltage range of 7V to 20V and delivers peak output currents of 1A (source) and 2A (sink) with fast switching characteristics (30ns rise time, 25ns fall time).

The UC3715NG4 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance of systems utilizing this gate driver architecture.

Substiute Parts

UC3715NG4

Texas InstrumentsIn Stock: 3012UC3715NG4 Datasheet

Current PartRFQ

UC2715D

Texas InstrumentsIn Stock: 2513UC2715D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UC3715NG4 is determined by strict equivalence across the following critical parameters:

• Driven Configuration: Low-Side operation only
• Number of Drivers: Exactly 2 drivers
• Gate Type: N-Channel and P-Channel MOSFET compatibility
• Voltage - Supply: 7V ~ 20V range
• Logic Voltage Thresholds: VIL = 0.8V, VIH = 2V
• Current - Peak Output: Source 1A, Sink 2A
• Input Type: Non-Inverting
• Rise / Fall Time: 30ns rise, 25ns fall (typical)

The UC2715D qualifies as a manufacturer-recommended substitute. It maintains identical electrical specifications across all critical parameters while differing only in packaging format (8-SOIC surface mount versus 8-DIP through hole) and operating temperature range extension.

Parameter Comparison

*UC2715D operating temperature range (-40°C ~ 150°C) encompasses the UC3715NG4 range (0°C ~ 150°C), providing extended low-temperature capability.

Engineering Selection Recommendations

UC2715D as Primary Substitute

The UC2715D is the manufacturer-recommended substitute for the UC3715NG4. Selection of this part is justified on the following grounds:

• Electrical Equivalence: All critical electrical parameters match exactly, including supply voltage, logic thresholds, output current ratings, and switching characteristics.
• Product Status: UC2715D maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete UC3715NG4.
• Regulatory Compliance: Both parts maintain identical RoHS3 and REACH compliance certifications, satisfying environmental and regulatory requirements.
• Temperature Range: The UC2715D extends the operating temperature range to -40°C, providing additional margin for applications requiring lower temperature operation.

Packaging Consideration

The primary difference between these parts is packaging format: UC3715NG4 uses through-hole 8-DIP mounting, while UC2715D uses surface-mount 8-SOIC packaging. PCB layout and assembly process modifications are required when transitioning between these package types. No electrical redesign is necessary.

Frequently Asked Questions (FAQ)

Q: Can UC2715D directly replace UC3715NG4 without circuit modifications?

A: Electrical functionality is identical. No circuit redesign is required. However, PCB layout must be modified to accommodate the different package format (8-SOIC surface mount versus 8-DIP through hole). Pin-to-pin electrical connections remain functionally equivalent.

Q: What is the significance of the extended operating temperature range in UC2715D?

A: The UC2715D operates from -40°C to 150°C, compared to UC3715NG4's 0°C to 150°C range. This extension provides additional margin for applications in cold environments. If your application operates only within 0°C to 150°C, both parts are functionally equivalent in this parameter.

Q: Are there any compliance or certification differences between these parts?

A: No. Both UC3715NG4 and UC2715D maintain identical RoHS3 compliance and REACH unaffected status. Regulatory requirements are satisfied by either part.

Q: Why is UC3715NG4 classified as obsolete?

A: Product obsolescence reflects Texas Instruments' discontinuation of this specific package variant. The UC2715D represents the active production equivalent, ensuring continued availability and manufacturing support.

Q: What are the moisture sensitivity implications of the different MSL ratings?

A: UC3715NG4 carries MSL 1 (unlimited shelf life without moisture control), while UC2715D carries MSL 2 (1-year shelf life with moisture control). UC2715D requires standard moisture-controlled storage practices during inventory management.

Q: Are there any performance differences in switching speed or output current?

A: No. Rise time (30ns), fall time (25ns), source current (1A), and sink current (2A) are identical across both parts. Switching performance is equivalent.