TAS5612PHD Equivalent & Substitute Parts

Part Overview

The TAS5612PHD is a Class D audio amplifier IC manufactured by Texas Instruments, part of the PurePath™ HD series. This device supports 1-Channel (Mono) or 2-Channel (Stereo) configurations with maximum output power of 250W at 2Ohm (mono) or 165W at 3Ohm per channel (stereo). The TAS5612PHD is designated as Last Time Buy, indicating end-of-life status. Identification of equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring Class D amplification with comparable electrical and mechanical specifications.

Substiute Parts

TAS5612PHD

Texas InstrumentsIn Stock: 2130TAS5612PHD Datasheet

Current PartRFQ

TAS5612APHD

Texas InstrumentsIn Stock: 1819TAS5612APHD Datasheet

DirectRFQ

TPA3223DDVR

Texas InstrumentsIn Stock: 4674TPA3223DDVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TAS5612PHD are classified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is determined by the following parameters:

Critical Compatibility Parameters:

• Amplifier Type: Class D topology
• Output Configuration: Support for 1-Channel (Mono) or 2-Channel (Stereo) operation
• Output Power Capability: Minimum 250W mono or 165W stereo performance
• Supply Voltage Range: Operational within or overlapping the 16V ~ 34.1V specification
• Package Type: Surface mount configuration with compatible pinout
• Protection Features: Presence of thermal and short-circuit protection
• Compliance Standards: ROHS3 and REACH compliance

Substitution Categories:

Direct Equivalent (Pin-Compatible): TAS5612APHD represents a direct equivalent with identical electrical specifications, package configuration, and feature set. This part maintains the same 64-HTQFP package and operational parameters.

Functional Equivalent (Different Package): TPA3223DDVR provides functional equivalence with Class D amplification capability but operates under different supply voltage parameters (4.5V ~ 5.5V, 10V ~ 40V) and uses a different package format (44-HTSSOP). This part is suitable for applications where the extended supply voltage range and higher mono output power (400W @ 4Ohm) are advantageous, provided PCB layout and thermal management accommodate the different package geometry.

Parameter Comparison

Engineering Selection Recommendations

TAS5612APHD Selection Criteria:

The TAS5612APHD is the primary substitute for the TAS5612PHD. This part maintains identical electrical specifications, package configuration, and feature set. The TAS5612APHD is designated as Active product status, ensuring continued availability and manufacturing support. Both parts are ROHS3 compliant and carry identical MSL ratings. Selection of TAS5612APHD is appropriate for direct replacement in existing designs without PCB modification or thermal management redesign. The identical 64-HTQFP package ensures pinout compatibility and thermal performance equivalence.

TPA3223DDVR Selection Criteria:

The TPA3223DDVR is a functional equivalent suitable for applications where design flexibility permits package and supply voltage changes. This part offers extended supply voltage range (4.5V ~ 5.5V, 10V ~ 40V) compared to the TAS5612PHD (16V ~ 34.1V), enabling operation in low-voltage and high-voltage applications. The TPA3223DDVR provides higher mono output power (400W @ 4Ohm) and extended operating temperature range (-40°C ~ 85°C). Selection of TPA3223DDVR requires PCB redesign to accommodate the 44-PowerTSSOP package and verification of thermal management for the different package geometry. This part is designated as Active product status.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original TAS5612PHD. MSL ratings are consistent across all parts, supporting standard moisture control procedures during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can TAS5612APHD be used as a direct replacement for TAS5612PHD without PCB modification?

A: Yes. The TAS5612APHD is a direct equivalent with identical pinout, package dimensions (64-HTQFP, 14x14mm), electrical specifications, and protection features. No PCB layout changes are required. The part can be substituted using existing assembly processes and thermal management designs.

Q: What are the key differences between TAS5612PHD and TPA3223DDVR?

A: The primary differences are package type (64-TQFP vs. 44-PowerTSSOP), supply voltage range (16V ~ 34.1V vs. 4.5V ~ 5.5V, 10V ~ 40V), mono output power (250W @ 2Ohm vs. 400W @ 4Ohm), and operating temperature range (0°C ~ 70°C vs. -40°C ~ 85°C). The TPA3223DDVR requires PCB redesign and thermal management verification.

Q: Is the TPA3223DDVR suitable for applications designed for TAS5612PHD?

A: The TPA3223DDVR provides functional Class D amplification with comparable stereo output power (200W x 2 @ 4Ohm vs. 165W x 2 @ 3Ohm). Substitution requires verification that the application supply voltage range overlaps with the TPA3223DDVR specification (10V ~ 40V overlaps with TAS5612PHD 16V ~ 34.1V range). PCB layout and thermal design must be re-evaluated for the different package configuration.

Q: What is the significance of the TAS5612PHD Last Time Buy status?

A: Last Time Buy designation indicates the TAS5612PHD is at end-of-life. Existing inventory is available, but future production is discontinued. The TAS5612APHD (Active status) is the recommended long-term substitute for new designs and ongoing production requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The TAS5612APHD and TPA3223DDVR are both ROHS3 compliant and REACH unaffected, maintaining regulatory alignment with the original TAS5612PHD.

Q: What moisture sensitivity level applies to these parts?

A: All three parts carry MSL 3 rating (168 Hours), requiring identical moisture control procedures during storage, handling, and assembly.

Q: Can the TPA3223DDVR operate at the TAS5612PHD supply voltage of 16V ~ 34.1V?

A: Yes. The TPA3223DDVR supply voltage range (4.5V ~ 5.5V, 10V ~ 40V) encompasses the TAS5612PHD range (16V ~ 34.1V). Operation within the overlapping 16V ~ 34.1V window is supported.