TAS5704PAP-P Equivalent & Substitute Parts

Part Overview

The TAS5704PAP-P is a Class D amplifier IC manufactured by Texas Instruments, designed for 2-Channel (Stereo) or 4-Channel (Quad) audio applications. This device is packaged in a 64-HTQFP (10x10) surface mount configuration and operates across dual supply voltage ranges of 3V to 3.6V and 10V to 26V. The TAS5704PAP-P is currently designated as Last Time Buy, indicating that the manufacturer has discontinued or will discontinue production. Identifying equivalent substitute parts is necessary to ensure continued design flexibility, procurement availability, and long-term product support for applications currently utilizing this amplifier IC.

Substiute Parts

TAS5704PAP-P

Texas InstrumentsIn Stock: 1255TAS5704PAP-P Datasheet

Current PartRFQ

TAS5805MPWPR

Texas InstrumentsIn Stock: 21430TAS5805MPWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TAS5704PAP-P are identified based on the following criteria:

Manufacturer Alignment: Both the main part and substitute must be manufactured by Texas Instruments to ensure design consistency, application support, and technical documentation compatibility.

Amplifier Type: Both parts must be Class D amplifiers, as this topology defines the core functional behavior and electrical characteristics of the device.

Surface Mount Technology: Both parts must utilize surface mount packaging to maintain compatibility with existing printed circuit board designs and assembly processes.

RoHS Compliance: Both parts must meet ROHS3 compliance standards to satisfy regulatory and environmental requirements.

Moisture Sensitivity Level: Both parts must maintain MSL 3 classification to ensure equivalent handling, storage, and reflow requirements.

Supply Voltage Compatibility: The substitute part must operate within a supply voltage range that encompasses or exceeds the original part's operating range to ensure functional compatibility across intended applications.

The TAS5805MPWPR is identified as a manufacturer-recommended substitute based on these criteria. While the TAS5805MPWPR operates as a 1-Channel (Mono) or 2-Channel (Stereo) device compared to the TAS5704PAP-P's 2-Channel (Stereo) or 4-Channel (Quad) configuration, it maintains Class D amplifier topology, surface mount packaging, RoHS3 compliance, and MSL 3 classification. The TAS5805MPWPR's extended supply voltage range (4.5V ~ 26.4V) and higher output power capability (45W x 1 @ 4Ohm, 23W x 2 @ 8Ohm) provide additional design flexibility for applications requiring higher power delivery.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TAS5704PAP-P is designated as Last Time Buy, indicating end-of-life status. The TAS5805MPWPR maintains Active product status with Texas Instruments, ensuring continued availability, technical support, and long-term supply chain stability.

Compliance and Certification: Both parts maintain ROHS3 compliance and identical MSL 3 classification, satisfying regulatory requirements and handling specifications. The TAS5805MPWPR includes additional REACH Unaffected status and ECCN/HTSUS classifications, providing enhanced documentation for international applications.

Inventory Availability: The TAS5805MPWPR demonstrates significantly higher inventory availability (21,400 pieces) compared to the TAS5704PAP-P (1,146 pieces), supporting immediate procurement and reducing supply chain risk.

Functional Capability: The TAS5805MPWPR delivers higher output power capability (45W x 1 @ 4Ohm versus 20.6W x 1 @ 8Ohm) and extended operating temperature range (-25°C ~ 85°C versus 0°C ~ 85°C), providing design margin for demanding applications.

Package Transition: The TAS5805MPWPR utilizes a 28-HTSSOP package compared to the TAS5704PAP-P's 64-HTQFP package. This represents a significant package footprint reduction, requiring printed circuit board redesign but enabling space optimization in compact applications.

Frequently Asked Questions (FAQ)

Q: Can the TAS5805MPWPR directly replace the TAS5704PAP-P without circuit modifications?

A: Direct pin-for-pin replacement is not possible due to different package types (28-HTSSOP versus 64-HTQFP) and channel configurations (2-Channel Stereo versus 4-Channel Quad capability). Circuit redesign and PCB layout modification are required. However, the TAS5805MPWPR can fulfill 2-Channel Stereo applications with enhanced performance specifications.

Q: What is the primary limitation when substituting the TAS5805MPWPR for quad-channel applications?

A: The TAS5805MPWPR is configured as a 1-Channel (Mono) or 2-Channel (Stereo) device and cannot directly support 4-Channel (Quad) configurations. Applications requiring quad-channel amplification must identify alternative solutions or implement multiple TAS5805MPWPR devices in parallel configurations.

Q: Are there supply voltage compatibility concerns between these parts?

A: The TAS5704PAP-P operates across 3V ~ 3.6V and 10V ~ 26V ranges. The TAS5805MPWPR operates across 4.5V ~ 26.4V. Applications utilizing the 3V ~ 3.6V supply range of the TAS5704PAP-P cannot use the TAS5805MPWPR without supply voltage modification.

Q: How do the output power specifications compare?

A: The TAS5805MPWPR delivers higher output power: 45W x 1 @ 4Ohm and 23W x 2 @ 8Ohm, compared to the TAS5704PAP-P's 20.6W x 1 @ 8Ohm and 18.1W x 2 @ 4Ohm. This increased capability provides design flexibility for higher-power audio applications.

Q: What packaging considerations apply to the TAS5805MPWPR substitution?

A: The TAS5805MPWPR uses 28-HTSSOP packaging, significantly smaller than the TAS5704PAP-P's 64-HTQFP package. This requires complete PCB redesign, including trace routing, thermal management layout, and component placement modifications. The smaller package may improve thermal performance in space-constrained designs.

Q: Does the TAS5805MPWPR support the extended operating temperature range of the TAS5704PAP-P?

A: The TAS5805MPWPR extends the lower operating temperature limit to -25°C (versus 0°C for the TAS5704PAP-P), providing enhanced performance in cold-environment applications. Both parts maintain the 85°C upper temperature limit.

Q: Are there any regulatory or compliance differences between these parts?

A: Both parts maintain ROHS3 compliance and MSL 3 classification. The TAS5805MPWPR includes additional REACH Unaffected status and ECCN/HTSUS classifications, supporting international trade and regulatory documentation requirements.