UCC28702DBVR Equivalent & Substitute Parts

Part Overview

The UCC28702DBVR is an offline switched-mode flyback converter controller manufactured by Texas Instruments, designed for isolated power supply applications. This active product operates across a 1kHz to 130kHz switching frequency range with integrated current limiting and overvoltage protection. The component is housed in a SOT-23-6 surface mount package and complies with ROHS3 and REACH standards.

Substitute parts are necessary when primary inventory is unavailable, when alternative packaging formats are required, or when design flexibility permits selection from the UCC287xx controller family while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Topology	Flyback
Output Isolation	Isolated
Voltage Supply Range (Vcc/Vdd)	9V ~ 35V
Startup Voltage	21V
Switching Frequency Range	1kHz ~ 130kHz
Fault Protection	Current Limiting, Over Voltage
Operating Temperature Range	-20°C ~ 125°C (TJ)
Package / Case	SOT-23-6
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the UCC28702DBVR is determined by strict equivalence across the following parameters:

Topology: All substitutes maintain flyback converter topology with isolated output
Voltage Supply Range: All operate within 9V ~ 35V supply specification
Startup Voltage: All require 21V startup threshold
Switching Frequency: All support 1kHz ~ 130kHz operating range
Fault Protection: All include current limiting and overvoltage protection
Operating Temperature: All rated -20°C ~ 125°C (TJ)
Package Format: All available in SOT-23-6 surface mount configuration
Compliance: All meet ROHS3 and REACH requirements with MSL 1 rating

The substitute parts represent alternative base product numbers (UCC28700, UCC28701, UCC28703) within the same controller family, available in both DBVR (Tape & Reel) and DBVT (Tape & Reel) packaging variants.

Parameter Comparison

Part Number	Manufacturer	Topology	Vcc/Vdd Range	Startup Voltage	Switching Frequency	Fault Protection	Operating Temp	Package	Packaging Type	Inventory (Pcs)	Product Status
UCC28702DBVR	Texas Instruments	Flyback	9V ~ 35V	21V	1kHz ~ 130kHz	Current Limiting, Over Voltage	-20°C ~ 125°C	SOT-23-6	Tape & Reel	12100	Active
UCC28700DBVR	Texas Instruments	Flyback	9V ~ 35V	21V	1kHz ~ 130kHz	Current Limiting, Over Voltage	-20°C ~ 125°C	SOT-23-6	Tape & Reel	6200	Active
UCC28700DBVT	Texas Instruments	Flyback	9V ~ 35V	21V	1kHz ~ 130kHz	Current Limiting, Over Voltage	-20°C ~ 125°C	SOT-23-6	Tape & Reel	2400	Active
UCC28701DBVT	Texas Instruments	Flyback	9V ~ 35V	21V	1kHz ~ 130kHz	Current Limiting, Over Voltage	-20°C ~ 125°C	SOT-23-6	Tape & Reel	2650	Active
UCC28702DBVT	Texas Instruments	Flyback	9V ~ 35V	21V	1kHz ~ 130kHz	Current Limiting, Over Voltage	-20°C ~ 125°C	SOT-23-6	Tape & Reel	1542	Active
UCC28703DBVT	Texas Instruments	Flyback	9V ~ 35V	21V	1kHz ~ 130kHz	Current Limiting, Over Voltage	-20°C ~ 125°C	SOT-23-6	Tape & Reel	6050	Active

Engineering Selection Recommendations

All listed substitute parts maintain active product status with Texas Instruments and comply with ROHS3 and REACH regulatory requirements. Selection among equivalent parts should be based on:

Packaging Variant Availability: The UCC28702DBVR is available in DBVR packaging. Substitutes UCC28700DBVR and UCC28702DBVT offer alternative packaging variants (DBVT) of the same base product numbers.

Inventory Considerations: UCC28702DBVR maintains the highest inventory level at 12100 units. UCC28703DBVT (6050 units) and UCC28700DBVR (6200 units) provide secondary availability options.

Base Product Number Selection: The UCC287xx family includes UCC28700, UCC28701, UCC28702, and UCC28703 base product numbers. All variants within this family maintain identical electrical specifications and thermal ratings for this application class.

Compliance Status: All parts carry MSL 1 (Unlimited) moisture sensitivity rating, ROHS3 compliance, and REACH unaffected status, ensuring equivalent reliability and supply chain compatibility.

Frequently Asked Questions (FAQ)

Q: Can UCC28700DBVR be used as a direct replacement for UCC28702DBVR?

A: Yes. Both parts share identical electrical parameters including supply voltage range (9V ~ 35V), startup voltage (21V), switching frequency range (1kHz ~ 130kHz), fault protection features, operating temperature range (-20°C ~ 125°C), and SOT-23-6 package format. The difference lies in the base product number designation within the UCC287xx controller family.

Q: What is the difference between DBVR and DBVT packaging designations?

A: Both DBVR and DBVT represent Tape & Reel packaging formats for surface mount SOT-23-6 components. The suffix letter indicates manufacturing or tape configuration variants. Electrical and thermal specifications remain identical between these packaging types.

Q: Are all substitute parts currently in active production?

A: Yes. All listed substitute parts maintain active product status with Texas Instruments, ensuring continued availability and support.

Q: Do substitute parts require PCB layout modifications?

A: No. All substitute parts use the identical SOT-23-6 surface mount package with the same pinout and footprint, requiring no PCB redesign.

Q: Which substitute part offers the best inventory availability?

A: UCC28702DBVR provides the highest inventory at 12100 units. UCC28703DBVT (6050 units) and UCC28700DBVR (6200 units) offer secondary availability.

Q: Are all parts compliant with current regulatory standards?

A: Yes. All parts are ROHS3 compliant and REACH unaffected, with MSL 1 (Unlimited) moisture sensitivity rating.

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