UCC28742DBVR Equivalent & Substitute Parts

Part Overview

The UCC28742DBVR is an offline switching flyback converter IC manufactured by Texas Instruments, designed for isolated power supply applications. This device operates at 80kHz switching frequency with integrated current limiting, overvoltage, and short circuit protection. The part is actively produced and widely stocked, with 18,930 units available in Cut Tape packaging. Alternative part numbers exist primarily due to packaging format differences in supply chain logistics rather than functional variations.

Substiute Parts

UCC28742DBVR

Texas InstrumentsIn Stock: 19025UCC28742DBVR Datasheet

Current PartRFQ

UCC28742DBVT

Texas InstrumentsIn Stock: 15598UCC28742DBVT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCC28742DBVR is determined by electrical and mechanical parameter equivalence. The primary substitute identified is the UCC28742DBVT, which maintains identical electrical specifications across all critical parameters: topology, supply voltage range, switching frequency, duty cycle, fault protection features, operating temperature range, and package form factor. The distinction between these part numbers is limited to packaging format—Cut Tape (CT) versus Tape & Reel (TR)—which affects supply chain handling and procurement quantities but does not alter functional performance or circuit compatibility.

Key parameters governing substitution:

• Topology: Flyback converter architecture
• Supply voltage range: 9V ~ 35V
• Switching frequency: 80kHz
• Package type: SOT-23-6
• Fault protection: Current Limiting, Over Voltage, Short Circuit
• Operating temperature: -40°C ~ 125°C

Parameter Comparison

Engineering Selection Recommendations

Both the UCC28742DBVR and UCC28742DBVT are active production parts from Texas Instruments with identical electrical and thermal specifications. Selection between these parts should be based on procurement requirements and supply chain logistics:

The UCC28742DBVR in Cut Tape packaging is suitable for lower-volume applications, prototype development, and situations requiring flexible quantity ordering. The UCC28742DBVT in Tape & Reel format is optimized for high-volume manufacturing and automated assembly processes. Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating, making them suitable for standard industrial and commercial applications across the specified operating temperature range of -40°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can UCC28742DBVT replace UCC28742DBVR in production designs? A: Yes. The UCC28742DBVT is electrically and functionally identical to the UCC28742DBVR. The only difference is packaging format (Tape & Reel versus Cut Tape). Both parts are pin-compatible, have identical electrical characteristics, and are suitable for the same circuit applications.

Q: What is the difference between Cut Tape and Tape & Reel packaging? A: Cut Tape (CT) packaging provides individual component strips suitable for manual handling and lower-volume orders. Tape & Reel (TR) packaging supplies components on continuous reels optimized for automated pick-and-place assembly equipment. Both formats contain the same component in the same SOT-23-6 package.

Q: Are there any thermal or electrical performance differences between these part numbers? A: No. Both parts operate identically across all electrical parameters, including supply voltage range (9V ~ 35V), switching frequency (80kHz), duty cycle (99%), and operating temperature range (-40°C ~ 125°C).

Q: Which part should I specify for high-volume production? A: The UCC28742DBVT in Tape & Reel format is recommended for high-volume manufacturing due to compatibility with automated assembly processes and cost efficiency at scale.

Q: Are both parts RoHS compliant? A: Yes. Both the UCC28742DBVR and UCC28742DBVT are ROHS3 compliant with MSL rating of 1 (Unlimited moisture sensitivity).