TAS5706APAPR Equivalent & Substitute Parts

Part Overview

The TAS5706APAPR is a Class D audio power amplifier IC manufactured by Texas Instruments, configured as a 2-Channel (Stereo) or 4-Channel (Quad) amplifier capable of delivering 20.6W per channel at 8Ω load impedance. The device is packaged in a 64-HTQFP (10x10) surface mount package and operates across a 10V to 26V supply voltage range.

This part has reached Last Time Buy status, indicating that Texas Instruments has discontinued or will discontinue production. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing the TAS5706APAPR.

Substiute Parts

TAS5706APAPR

Texas InstrumentsIn Stock: 2608TAS5706APAPR Datasheet

Current PartRFQ

TAS5805MPWPR

Texas InstrumentsIn Stock: 21430TAS5805MPWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAS5706APAPR is determined by the following critical parameters:

Amplifier Classification: Both the main part and substitute must operate as Class D amplifiers to maintain efficiency and thermal characteristics.

Output Channel Configuration: The TAS5706APAPR supports 2-Channel (Stereo) or 4-Channel (Quad) operation. Substitute parts must support at least 2-Channel (Stereo) operation to maintain compatibility with stereo audio applications.

Power Output Capability: The TAS5706APAPR delivers 20.6W per channel at 8Ω load. Substitute parts must deliver equal or greater power output at the same load impedance to ensure adequate signal amplification without performance degradation.

Supply Voltage Compatibility: The TAS5706APAPR operates across 10V to 26V. Substitute parts must support overlapping or extended voltage ranges to function within existing power supply designs.

Package and Mounting: Surface mount packaging is required. Pin count and package footprint must be compatible with existing PCB layouts, or design modification must be acceptable.

Environmental and Compliance Standards: RoHS3 compliance, MSL rating, and operating temperature range must meet or exceed the original specification to ensure reliability in target applications.

The TAS5805MPWPR qualifies as a manufacturer-recommended substitute based on these parameters, despite differences in channel configuration and package type.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TAS5706APAPR is designated Last Time Buy, indicating end-of-life status. The TAS5805MPWPR is designated Active, confirming ongoing availability and production support from Texas Instruments.

Compliance and Certification Alignment: Both parts maintain ROHS3 compliance and identical MSL ratings (3, 168 Hours), ensuring equivalent handling and storage requirements. Both parts carry EAR99 ECCN classification and are REACH Unaffected, maintaining regulatory consistency across supply chain transitions.

Power Output Performance: The TAS5805MPWPR delivers 23W per channel at 8Ω in stereo configuration, exceeding the TAS5706APAPR specification of 20.6W per channel. This increased power capability provides design margin and enhanced performance in stereo audio applications.

Supply Voltage Range: The TAS5805MPWPR extends the lower supply voltage limit to 4.5V while maintaining the upper limit at 26.4V, providing broader operational flexibility compared to the TAS5706APAPR range of 10V to 26V.

Operating Temperature Range: The TAS5805MPWPR supports -25°C to 85°C operation, extending the lower temperature limit by 25°C relative to the TAS5706APAPR. This extended range accommodates applications requiring enhanced cold-weather performance.

Package and Design Considerations: The TAS5805MPWPR uses a 28-HTSSOP package, significantly reducing pin count and footprint compared to the 64-HTQFP package of the TAS5706APAPR. Design modification is required to accommodate this package change.

Frequently Asked Questions (FAQ)

Q: Can the TAS5805MPWPR directly replace the TAS5706APAPR without PCB modification?

A: No. The TAS5805MPWPR uses a 28-HTSSOP package, while the TAS5706APAPR uses a 64-HTQFP (10x10) package. These packages have different pin counts, pinouts, and footprints. PCB redesign is required for substitution.

Q: What is the key difference in channel configuration between these parts?

A: The TAS5706APAPR supports 2-Channel (Stereo) or 4-Channel (Quad) operation. The TAS5805MPWPR supports 1-Channel (Mono) or 2-Channel (Stereo) operation. For stereo applications, both parts are compatible. Quad-channel applications require the TAS5706APAPR or alternative quad-capable amplifiers.

Q: Does the TAS5805MPWPR provide sufficient power output for applications designed around the TAS5706APAPR?

A: Yes. The TAS5805MPWPR delivers 23W per channel at 8Ω in stereo mode, exceeding the TAS5706APAPR specification of 20.6W per channel at 8Ω. Power output is adequate for stereo audio applications.

Q: Are there supply voltage compatibility concerns when substituting the TAS5805MPWPR?

A: The TAS5805MPWPR operates across 4.5V to 26.4V, while the TAS5706APAPR operates across 10V to 26V. If the original design operates below 10V, the TAS5805MPWPR provides extended lower-voltage capability. If the original design operates at 10V or above, both parts are compatible within the overlapping range.

Q: What are the handling and storage requirements for the TAS5805MPWPR?

A: The TAS5805MPWPR carries MSL rating 3 (168 Hours), identical to the TAS5706APAPR. Both parts require equivalent moisture control during storage and handling. Standard MSL 3 precautions apply: storage in dry conditions, use of desiccant packaging, and bake-out procedures if moisture exposure occurs.

Q: Is the TAS5805MPWPR available in the same packaging format as the TAS5706APAPR?

A: No. The TAS5706APAPR is supplied in Tape & Reel (TR) format. The TAS5805MPWPR is supplied in Cut Tape (CT) and Digi-Reel® format. Packaging format differences do not affect electrical performance but may impact procurement and handling procedures.

Q: Why is the TAS5706APAPR designated Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued or will discontinue production of the TAS5706APAPR. This designation signals the end of the product lifecycle and the need to transition to alternative parts for new designs or long-term supply continuity.

Q: Are both parts RoHS compliant?

A: Yes. Both the TAS5706APAPR and TAS5805MPWPR are ROHS3 compliant, ensuring compatibility with RoHS-regulated applications and supply chains.