UCC28632DR Equivalent & Substitute Parts

Part Overview

The UCC28632DR is an offline switch flyback converter IC manufactured by Texas Instruments, designed for isolated power management applications. This active product operates across a 200Hz to 120kHz switching frequency range with 30W power handling capability and integrated fault protection including current limiting, overload, over-temperature, and over-voltage protection. The device is housed in a 7-SOIC package and is ROHS3 compliant with MSL 2 rating.

Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or inventory requirements while maintaining identical electrical and mechanical performance.

Substiute Parts

UCC28632DR

Texas InstrumentsIn Stock: 2582UCC28632DR Datasheet

Current PartRFQ

UCC28633DR

Texas InstrumentsIn Stock: 3412UCC28633DR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The UCC28633DR qualifies as a parametric equivalent to the UCC28632DR based on strict alignment of the following critical substitution criteria:

Electrical Parameters (Identical):

• Topology: Flyback converter
• Output Isolation: Isolated
• Voltage Supply Range: 8V ~ 20V
• Voltage Start-Up: 14.75V
• Switching Frequency Range: 200Hz ~ 120kHz
• Power Rating: 30W
• Duty Cycle: 70%
• Fault Protection: Current Limiting, Over Load, Over Temperature, Over Voltage
• Operating Temperature Range: -40°C ~ 125°C (TJ)

Mechanical Parameters (Identical):

• Package / Case: 8-SOIC (0.154", 3.90mm Width), 7 Leads
• Mounting Type: Surface Mount

Compliance & Status (Identical):

• Manufacturer: Texas Instruments
• Product Status: Active
• RoHS Status: ROHS3 Compliant
• MSL Rating: 2 (1 Year)

Packaging Difference:

• UCC28632DR: Standard packaging
• UCC28633DR: Tape & Reel (TR) packaging

The substitution is valid because all electrical and mechanical parameters are identical. The packaging difference (Tape & Reel vs. standard) does not affect functional compatibility and represents a supply chain or procurement variant.

Parameter Comparison

Engineering Selection Recommendations

UCC28632DR is the primary selection when standard packaging is required or when existing inventory and supply agreements specify this exact part number.

UCC28633DR is a direct functional substitute when Tape & Reel packaging is preferred for automated assembly processes or when supply availability favors this variant. Both parts maintain identical electrical performance, thermal characteristics, and compliance certifications (ROHS3, MSL 2).

Selection between these two variants should be based on:

• Packaging requirements for your assembly process
• Current inventory and supply chain availability
• Cost considerations between standard and Tape & Reel formats

Both parts are active products from Texas Instruments with confirmed ROHS3 compliance and identical fault protection capabilities.

Frequently Asked Questions (FAQ)

Q: Can UCC28633DR replace UCC28632DR in an existing design? A: Yes. The UCC28633DR is a parametric equivalent with identical electrical specifications, operating ranges, and package dimensions. The only difference is the packaging format (Tape & Reel vs. standard). No circuit modifications are required.

Q: What is the difference between these two part numbers? A: The UCC28632DR and UCC28633DR are functionally identical offline switch flyback converter ICs from Texas Instruments. The primary difference is packaging: UCC28632DR uses standard packaging while UCC28633DR uses Tape & Reel (TR) format. All electrical parameters, thermal ratings, and compliance certifications are identical.

Q: Are both parts ROHS3 compliant? A: Yes. Both UCC28632DR and UCC28633DR are ROHS3 compliant with MSL 2 rating (1 Year), meeting the same environmental and regulatory standards.

Q: Which part should I use for high-volume production? A: For high-volume automated assembly, UCC28633DR with Tape & Reel packaging is typically preferred as it integrates directly with pick-and-place equipment. For lower volumes or manual assembly, either variant is suitable based on availability.

Q: Do these parts have the same thermal performance? A: Yes. Both parts operate across the identical temperature range of -40°C to 125°C (TJ) and include the same fault protection mechanisms: current limiting, overload, over-temperature, and over-voltage protection.

Q: Can I mix these parts in the same production batch? A: Yes. Since both parts are parametrically identical with the same 8-SOIC package and pin configuration, they can be used interchangeably in the same circuit design and PCB layout without any modifications.