TAS5706PAP Equivalent & Substitute Parts

Part Overview

The TAS5706PAP is a Class D audio amplifier IC manufactured by Texas Instruments, configured as a 2-Channel (Stereo) or 4-Channel (Quad) amplifier in a 64-HTQFP surface mount package. This device delivers 20.6W per channel at 8Ω load impedance and operates across a 10V to 26V supply voltage range. The TAS5706PAP is designated as Last Time Buy, indicating end-of-life status. Identification of equivalent and substitute parts is necessary to ensure design continuity and procurement availability for applications requiring Class D amplification with comparable electrical and mechanical specifications.

Substiute Parts

TAS5706PAP

Texas InstrumentsIn Stock: 49378TAS5706PAP Datasheet

Current PartRFQ

TAS5805MPWPR

Texas InstrumentsIn Stock: 21430TAS5805MPWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAS5706PAP is based on the following critical parameters that define functional equivalence within Class D amplifier applications:

Primary Substitution Criteria:

• Amplifier topology: Class D technology
• Manufacturer: Texas Instruments (same design ecosystem and pin compatibility considerations)
• Surface mount packaging: Enables direct PCB integration
• Supply voltage compatibility: Overlap within 10V ~ 26V range
• RoHS3 compliance: Ensures regulatory alignment
• MSL 3 rating: Matches moisture sensitivity requirements

Secondary Compatibility Factors:

• Output power delivery capability
• Channel configuration flexibility (Mono/Stereo or Stereo/Quad)
• Operating temperature range
• Package footprint and pin count

The TAS5805MPWPR qualifies as a manufacturer-recommended substitute based on shared Class D architecture, Texas Instruments origin, compatible supply voltage range, identical RoHS3 and MSL ratings, and surface mount configuration. Differences in output power, channel count, and package form factor require application-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

TAS5805MPWPR as Primary Substitute:

The TAS5805MPWPR is designated as the manufacturer-recommended substitute and is the appropriate selection for new designs or procurement requiring replacement of the TAS5706PAP. This recommendation is based on:

• Product Status Alignment: The TAS5805MPWPR maintains Active product status, ensuring long-term availability and continued manufacturer support, whereas the TAS5706PAP is Last Time Buy.
• Regulatory Compliance: Both devices maintain ROHS3 compliance and identical MSL 3 ratings, satisfying environmental and handling requirements.
• Class D Architecture: Shared amplifier topology ensures functional compatibility within Class D audio amplification applications.
• Supply Voltage Compatibility: The TAS5805MPWPR supply range (4.5V ~ 26.4V) encompasses the TAS5706PAP operating window (10V ~ 26V), providing broader design flexibility.
• Extended Temperature Range: The TAS5805MPWPR operating range (-25°C ~ 85°C) exceeds the TAS5706PAP specification (0°C ~ 85°C), supporting applications with lower ambient temperature requirements.

Design Considerations:

Applications utilizing the TAS5706PAP in 4-Channel (Quad) configuration require architectural modification, as the TAS5805MPWPR supports maximum 2-Channel (Stereo) output. Stereo-only applications benefit from the TAS5805MPWPR's higher output power capability (23W x 2 @ 8Ω versus 20.6W x 2 @ 8Ω). Package footprint differences (64-pin HTQFP versus 28-pin HTSSOP) necessitate PCB layout redesign.

Frequently Asked Questions (FAQ)

Q: Can the TAS5805MPWPR directly replace the TAS5706PAP without PCB modification?

A: No. The TAS5805MPWPR uses a 28-pin HTSSOP package compared to the TAS5706PAP 64-pin HTQFP package. PCB layout redesign is required. Pin assignments and signal routing differ between devices and must be evaluated against the TAS5805MPWPR datasheet.

Q: Is the TAS5805MPWPR suitable for 4-Channel (Quad) applications?

A: No. The TAS5805MPWPR supports 1-Channel (Mono) or 2-Channel (Stereo) configuration only. Applications requiring 4-Channel output cannot use this substitute without significant system redesign.

Q: What is the output power difference between these devices at 8Ω load?

A: The TAS5706PAP delivers 20.6W per channel in stereo mode at 8Ω. The TAS5805MPWPR delivers 23W per channel in stereo mode at 8Ω, representing a 2.4W increase per channel.

Q: Are both devices RoHS3 compliant?

A: Yes. Both the TAS5706PAP and TAS5805MPWPR are ROHS3 compliant and carry identical MSL 3 (168 Hours) moisture sensitivity ratings.

Q: What is the minimum supply voltage for each device?

A: The TAS5706PAP requires minimum 10V supply. The TAS5805MPWPR operates at minimum 4.5V supply, providing broader voltage compatibility for low-voltage applications.

Q: Does the TAS5805MPWPR support the full 10V to 26V supply range of the TAS5706PAP?

A: Yes. The TAS5805MPWPR supply range (4.5V ~ 26.4V) fully encompasses the TAS5706PAP operating window (10V ~ 26V).

Q: What is the operating temperature range difference?

A: The TAS5706PAP operates 0°C ~ 85°C. The TAS5805MPWPR operates -25°C ~ 85°C, supporting 25°C lower ambient temperatures.

Q: Why is the TAS5706PAP designated Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued this product line. The TAS5805MPWPR, with Active status, represents the current generation Class D amplifier offering from the manufacturer.

Q: Are there packaging format differences between these devices?

A: Yes. The TAS5706PAP is supplied in Tray packaging. The TAS5805MPWPR is supplied in Cut Tape (CT) and Digi-Reel® formats, reflecting different manufacturing and distribution stages.