TAS5706PAPR Equivalent & Substitute Parts

Part Overview

The TAS5706PAPR is a Class D audio amplifier IC manufactured by Texas Instruments, configured as a 2-Channel (Stereo) or 4-Channel (Quad) amplifier with maximum output power of 20.6W per channel at 8Ohm load impedance. The device is packaged in a 64-HTQFP (10x10) surface mount package and operates across a supply voltage range of 10V to 26V with an operating temperature range of 0°C to 85°C.

The TAS5706PAPR is designated as Last Time Buy status, indicating that the manufacturer has discontinued or will discontinue production. Locating equivalent or substitute components is necessary to support ongoing design requirements, system maintenance, and production continuity for applications currently utilizing this amplifier IC.

Substiute Parts

TAS5706PAPR

Texas InstrumentsIn Stock: 1500TAS5706PAPR Datasheet

Current PartRFQ

TAS5805MPWPR

Texas InstrumentsIn Stock: 21430TAS5805MPWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAS5706PAPR is determined by the following critical parameters:

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

Supply Voltage Compatibility: The substitute must operate within or encompass the 10V to 26V supply range of the TAS5706PAPR. Substitutes with extended voltage ranges (such as 4.5V to 26.4V) are acceptable as they include the required operating window.

Output Channel Configuration: The TAS5706PAPR supports 2-Channel (Stereo) or 4-Channel (Quad) operation. Substitutes must support at least 2-Channel (Stereo) operation to maintain compatibility with stereo audio applications.

Surface Mount Packaging: The substitute must utilize surface mount technology to ensure compatibility with existing PCB layouts and assembly processes.

Compliance Standards: Both parts must maintain ROHS3 compliance and equivalent moisture sensitivity levels to ensure regulatory and manufacturing process compatibility.

Manufacturer Continuity: Texas Instruments is the specified manufacturer for both the main part and substitute, ensuring consistent design support and technical documentation.

Parameter Comparison

Engineering Selection Recommendations

TAS5805MPWPR as Primary Substitute

The TAS5805MPWPR is designated as the manufacturer-recommended substitute for the TAS5706PAPR. This substitution is supported by the following engineering factors:

Product Status Alignment: The TAS5805MPWPR maintains Active product status, ensuring long-term availability, continued technical support, and manufacturing continuity. This directly addresses the Last Time Buy status of the TAS5706PAPR.

Regulatory Compliance: Both parts maintain ROHS3 compliance and identical MSL ratings (3, 168 Hours), ensuring compatibility with existing manufacturing processes and supply chain requirements.

Class D Architecture: Both amplifiers utilize Class D topology, maintaining equivalent efficiency characteristics and thermal performance profiles required for audio amplification applications.

Supply Voltage Compatibility: The TAS5805MPWPR supply voltage range (4.5V to 26.4V) encompasses the TAS5706PAPR operating window (10V to 26V), ensuring direct compatibility with existing power supply designs.

Stereo Audio Support: The TAS5805MPWPR supports 2-Channel (Stereo) operation, meeting the primary audio configuration requirement of the TAS5706PAPR.

Output Power Enhancement: The TAS5805MPWPR delivers 23W per channel at 8Ohm load impedance, exceeding the 20.6W specification of the TAS5706PAPR, providing improved performance headroom for audio applications.

Design Considerations: The TAS5805MPWPR utilizes a 28-HTSSOP package compared to the 64-HTQFP package of the main part. PCB layout modifications are required to accommodate the different package footprint and pin configuration.

Frequently Asked Questions (FAQ)

Q: Can the TAS5805MPWPR directly replace the TAS5706PAPR without PCB modifications?

A: No. The TAS5805MPWPR uses a 28-HTSSOP package while the TAS5706PAPR uses a 64-HTQFP (10x10) package. These packages have different physical dimensions, pin counts, and footprints. PCB layout redesign is required to accommodate the substitute component.

Q: What is the difference in output power between these two amplifiers?

A: At 8Ohm load impedance, the TAS5706PAPR delivers 20.6W per channel in stereo configuration, while the TAS5805MPWPR delivers 23W per channel in stereo configuration. The TAS5805MPWPR provides approximately 2.4W additional output power per channel.

Q: Does the TAS5805MPWPR support quad-channel operation like the TAS5706PAPR?

A: No. The TAS5805MPWPR supports 1-Channel (Mono) or 2-Channel (Stereo) operation only. Applications requiring 4-Channel (Quad) amplification cannot use this substitute without additional amplifier stages.

Q: Are the supply voltage requirements compatible between these parts?

A: Yes. The TAS5706PAPR operates from 10V to 26V, while the TAS5805MPWPR operates from 4.5V to 26.4V. The TAS5805MPWPR supply range encompasses the TAS5706PAPR requirements, ensuring direct compatibility with existing power supply designs.

Q: What is the operating temperature range difference?

A: The TAS5706PAPR operates from 0°C to 85°C, while the TAS5805MPWPR operates from -25°C to 85°C. The TAS5805MPWPR provides extended low-temperature operation capability.

Q: Are both parts RoHS compliant?

A: Yes. Both the TAS5706PAPR and TAS5805MPWPR are ROHS3 compliant with identical MSL ratings of 3 (168 Hours), ensuring compatibility with current manufacturing and environmental standards.

Q: What is the significance of the Last Time Buy status for the TAS5706PAPR?

A: Last Time Buy status indicates that Texas Instruments has discontinued or will discontinue production of the TAS5706PAPR. This designation requires design migration to alternative components. The TAS5805MPWPR, with Active product status, provides a viable long-term alternative.

Q: How do the package types affect component selection?

A: The 64-HTQFP package of the TAS5706PAPR accommodates higher pin counts for quad-channel operation, while the 28-HTSSOP package of the TAS5805MPWPR is optimized for stereo applications. Package selection depends on the required channel configuration and available PCB space.