UCC27221PWPR Equivalent & Substitute Parts

Part Overview

The UCC27221PWPR is a Half-Bridge Gate Driver IC manufactured by Texas Instruments, designed for inverting gate drive applications in power management circuits. This device features a 14-HTSSOP package and supports N-Channel MOSFET configurations with dual synchronous drivers. The UCC27221PWPR is classified as Obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts maintain the core half-bridge gate driver functionality while offering improved availability and updated product status.

Substiute Parts

UCC27221PWPR

Texas InstrumentsIn Stock: 1086UCC27221PWPR Datasheet

Current PartRFQ

TPS28226DR

Texas InstrumentsIn Stock: 1177TPS28226DR Datasheet

MFR RecommendedRFQ

TPS28226DRBR

Texas InstrumentsIn Stock: 4481TPS28226DRBR Datasheet

MFR RecommendedRFQ

TPS28226DRBT

Texas InstrumentsIn Stock: 4526TPS28226DRBT Datasheet

MFR RecommendedRFQ

TPS28226D

Texas InstrumentsIn Stock: 1048TPS28226D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UCC27221PWPR are identified based on the following core substitution criteria:

Functional Equivalence: All substitute parts maintain the half-bridge gate driver configuration with dual synchronous N-Channel MOSFET drivers.

Driven Configuration: Half-Bridge topology is preserved across all substitutes.

Channel Type & Number of Drivers: All substitutes feature synchronous dual-driver architecture.

Mounting Type: All substitutes use Surface Mount technology, maintaining PCB integration compatibility.

Manufacturer Consistency: All substitutes are manufactured by Texas Instruments, ensuring design continuity and support consistency.

Key Differentiators in Substitutes:

The substitute parts (TPS28226 series) differ from the UCC27221PWPR in the following parameters:

• Input Type: TPS28226 series uses Non-Inverting logic, whereas UCC27221PWPR uses Inverting logic
• Package / Case: TPS28226 series available in 8-SOIC and 8-SON (3x3) packages, compared to 14-PowerTSSOP
• Voltage - Supply: TPS28226 series operates at 6.8V ~ 8.8V, compared to UCC27221PWPR's 3.7V ~ 20V range
• Rise / Fall Time: TPS28226 series achieves 10ns, 10ns compared to UCC27221PWPR's 17ns, 17ns
• Operating Temperature: TPS28226 series operates -40°C ~ 125°C, compared to UCC27221PWPR's -55°C ~ 115°C
• Product Status: TPS28226 series parts are Active or Last Time Buy, providing better long-term availability

Parameter Comparison

Engineering Selection Recommendations

TPS28226DR (8-SOIC, Tape & Reel): This part is recommended for new designs requiring active product status with unlimited moisture sensitivity. The Active product status ensures long-term availability and manufacturing support. The 8-SOIC package provides a compact footprint with reduced pin count compared to the UCC27221PWPR. MSL Level 1 (Unlimited) eliminates moisture-related storage constraints.

TPS28226DRBR (8-SON 3x3, Tape & Reel): This option provides the smallest footprint among substitutes with the 8-VDFN Exposed Pad package. Suitable for space-constrained applications. MSL Level 2 (1 Year) requires standard moisture control during storage and handling.

TPS28226DRBT (8-SON 3x3, Tape & Reel): Functionally equivalent to TPS28226DRBR with identical electrical specifications and package. Product status is Last Time Buy, indicating limited future availability. Selection should prioritize TPS28226DRBR or TPS28226DR for new production.

TPS28226D (8-SOIC, Tube): This part offers the same electrical performance as TPS28226DR with MSL Level 1 (Unlimited). Tube packaging is suitable for lower-volume applications or manual assembly processes. Product status is Last Time Buy.

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment with the original UCC27221PWPR.

Frequently Asked Questions (FAQ)

Q: Can TPS28226 series parts directly replace UCC27221PWPR without circuit modifications?

A: Direct pin-for-pin replacement is not possible due to package differences (14-PowerTSSOP vs. 8-SOIC/8-SON). Additionally, the TPS28226 series uses Non-Inverting logic while UCC27221PWPR uses Inverting logic, requiring circuit-level design changes to accommodate the inverted input signal polarity.

Q: What is the primary reason for substituting UCC27221PWPR?

A: The UCC27221PWPR is classified as Obsolete, meaning Texas Instruments has discontinued production and support. The TPS28226 series provides equivalent half-bridge gate driver functionality with Active or Last Time Buy status, ensuring continued availability and manufacturing support.

Q: How do the supply voltage ranges differ between UCC27221PWPR and TPS28226 series?

A: UCC27221PWPR operates across a wide supply range of 3.7V ~ 20V, while TPS28226 series operates at 6.8V ~ 8.8V. Applications requiring the extended lower voltage range of UCC27221PWPR may require alternative solutions outside the TPS28226 family.

Q: What are the package options for TPS28226 substitutes?

A: TPS28226 series is available in three package configurations: 8-SOIC (0.154", 3.90mm Width) in both Tape & Reel and Tube packaging, and 8-SON (3x3) with Exposed Pad in Tape & Reel packaging. Package selection depends on PCB layout requirements and assembly process compatibility.

Q: Which TPS28226 variant offers the best long-term availability?

A: TPS28226DR (8-SOIC, Tape & Reel) is the recommended choice for new designs, as it maintains Active product status. This ensures continued manufacturing support and availability beyond the Last Time Buy window applicable to TPS28226DRBT and TPS28226D.

Q: Are there moisture sensitivity differences between substitute parts?

A: Yes. TPS28226DR and TPS28226D feature MSL Level 1 (Unlimited), eliminating moisture-related storage constraints. TPS28226DRBR and TPS28226DRBT feature MSL Level 2 (1 Year), requiring standard moisture control during storage and handling periods not exceeding one year.

Q: Do all substitute parts maintain the same compliance certifications as UCC27221PWPR?

A: Yes. All TPS28226 series substitutes are ROHS3 Compliant and REACH Unaffected, matching the regulatory compliance profile of UCC27221PWPR.

Q: What is the difference in switching speed between UCC27221PWPR and TPS28226 series?

A: TPS28226 series achieves faster rise and fall times of 10ns compared to UCC27221PWPR's 17ns. This improved switching performance may require circuit evaluation to ensure compatibility with existing gate drive timing requirements.