TAS5706APAP Equivalent & Substitute Parts

Part Overview

The TAS5706APAP 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.

This part is currently in Last Time Buy status, indicating end-of-life production. Identification of equivalent and substitute parts is necessary for design continuity, long-term availability assurance, and inventory planning for applications requiring Class D amplification in stereo or quad configurations.

Substiute Parts

TAS5706APAP

Texas InstrumentsIn Stock: 2425TAS5706APAP Datasheet

Current PartRFQ

TAS5805MPWPR

Texas InstrumentsIn Stock: 21430TAS5805MPWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAS5706APAP is based on the following critical parameters that define functional equivalence:

Substitution Criteria:

• Amplifier Type: Class D topology
• Manufacturer: Texas Instruments (same design ecosystem and support)
• Supply Voltage Compatibility: Overlapping or extended voltage range (10V ~ 26V for TAS5706APAP)
• RoHS3 Compliance: Mandatory for regulatory alignment
• MSL Rating: 3 (168 Hours) for moisture sensitivity compatibility
• Surface Mount Technology: Consistent with PCB assembly requirements

The TAS5805MPWPR is identified as a manufacturer-recommended substitute. While it differs in output channel configuration (1-Channel Mono or 2-Channel Stereo versus 2-Channel or 4-Channel in the TAS5706APAP), it maintains Class D amplification topology, Texas Instruments manufacture, overlapping supply voltage range, and identical compliance certifications. The TAS5805MPWPR operates across an extended temperature range (-25°C ~ 85°C) and is in Active product status, ensuring long-term availability.

Parameter Comparison

Engineering Selection Recommendations

For Stereo (2-Channel) Applications:

The TAS5805MPWPR is suitable as a substitute for stereo audio amplification. Both devices maintain Class D topology and ROHS3 compliance. The TAS5805MPWPR provides 23W per channel at 8Ohm load, exceeding the TAS5706APAP specification of 20.6W per channel. The extended operating temperature range (-25°C ~ 85°C) of the TAS5805MPWPR provides additional thermal margin compared to the TAS5706APAP (0°C ~ 85°C). Active product status of the TAS5805MPWPR ensures sustained availability and manufacturing support.

For Quad (4-Channel) Applications:

The TAS5805MPWPR does not support 4-channel configuration. Applications requiring quad-channel amplification cannot use the TAS5805MPWPR as a direct substitute. Alternative solutions must be evaluated for quad-channel requirements.

Voltage Supply Considerations:

The TAS5805MPWPR operates across a lower minimum supply voltage (4.5V) compared to the TAS5706APAP (10V minimum). Applications operating at supply voltages below 10V may benefit from the TAS5805MPWPR. Both devices support the upper voltage limit of 26V and above, with the TAS5805MPWPR rated to 26.4V.

Packaging and PCB Integration:

Package transition from 64-HTQFP to 28-HTSSOP requires PCB redesign. The 28-HTSSOP package is significantly smaller, reducing board footprint. This transition is suitable for space-constrained designs but requires schematic and layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the TAS5805MPWPR replace the TAS5706APAP in all applications?

A: No. The TAS5805MPWPR supports 1-Channel (Mono) or 2-Channel (Stereo) configuration only. Applications requiring 4-Channel (Quad) amplification cannot use the TAS5805MPWPR. For stereo applications, substitution is feasible with PCB redesign due to package differences.

Q: What are the key differences in output power specifications?

A: At 8Ohm load impedance, the TAS5805MPWPR delivers 23W per channel in stereo mode, compared to 20.6W per channel for the TAS5706APAP. The TAS5805MPWPR provides approximately 12% higher output power in stereo configuration. At 4Ohm load, the TAS5805MPWPR delivers 45W in mono mode.

Q: Are there supply voltage compatibility issues?

A: The TAS5706APAP requires minimum 10V supply voltage, while the TAS5805MPWPR operates from 4.5V minimum. Both devices support up to 26V (TAS5706APAP) and 26.4V (TAS5805MPWPR). Applications operating between 4.5V and 10V can only use the TAS5805MPWPR. Applications above 10V support both devices.

Q: What PCB modifications are required for substitution?

A: Package transition from 64-HTQFP (10x10) to 28-HTSSOP requires complete PCB redesign. Pin assignments differ between packages. Schematic modifications may be necessary depending on application-specific channel configuration requirements. Thermal management layout changes are required due to different package thermal characteristics.

Q: Are compliance certifications identical?

A: Both devices maintain ROHS3 compliance, identical MSL rating of 3 (168 Hours), and REACH Unaffected status. ECCN and HTSUS classifications are identical (EAR99 and 8542.33.0001 respectively). Regulatory compliance is maintained across substitution.

Q: What is the temperature operating range difference?

A: The TAS5706APAP operates from 0°C to 85°C. The TAS5805MPWPR extends the lower temperature limit to -25°C, providing 25°C additional margin for cold environment applications. Both devices share the 85°C upper temperature limit.

Q: Why is the TAS5706APAP in Last Time Buy status?

A: Last Time Buy status indicates end-of-life production phase. The TAS5805MPWPR is in Active status, ensuring continued manufacturing support and long-term availability. New designs should prioritize the TAS5805MPWPR for stereo applications to avoid future obsolescence.