TAS5707PHP Equivalent & Substitute Parts

Part Overview

The TAS5707PHP is a Class D stereo amplifier IC manufactured by Texas Instruments, designed for 2-channel audio amplification with 20.6W output power per channel at 8Ω load impedance. The device operates across a supply voltage range of 8V to 24V and integrates digital control interfaces including I2C and I2S protocols, along with comprehensive protection features such as short-circuit and thermal protection.

The TAS5707PHP carries a "Not For New Designs" product status designation. This classification indicates that Texas Instruments has discontinued active development and support for this component line. Engineers and procurement teams requiring stereo Class D amplification functionality must evaluate qualified substitute components that maintain compatibility with existing system requirements while offering active product support and extended availability.

Substiute Parts

TAS5707PHP

Texas InstrumentsIn Stock: 1415TAS5707PHP Datasheet

Current PartRFQ

TAS5805MPWP

Texas InstrumentsIn Stock: 2125TAS5805MPWP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TAS5707PHP is determined by the following critical parameters:

Amplifier Type & Configuration: The substitute must be a Class D amplifier IC capable of stereo (2-channel) operation to maintain functional equivalence with the original design.

Output Power Specification: The substitute must deliver minimum 20.6W per channel at 8Ω load impedance to satisfy the power delivery requirements of the original application.

Supply Voltage Compatibility: The substitute must operate within or encompass the 8V to 24V supply voltage range of the TAS5707PHP. Substitutes with extended voltage ranges (such as 4.5V to 26.4V) remain compatible with the original specification.

Package & Mounting: Surface mount packaging is required. Package form factor changes are permissible provided the substitute maintains electrical and thermal performance characteristics.

Compliance & Certification: RoHS3 compliance and equivalent moisture sensitivity ratings ensure regulatory and manufacturing process compatibility.

The TAS5805MPWP qualifies as a manufacturer-recommended substitute based on these criteria. While the TAS5805MPWP offers higher maximum output power (45W mono / 23W stereo) and extended supply voltage range (4.5V to 26.4V), it maintains full compatibility with the TAS5707PHP stereo amplification requirements and operates within the original supply voltage specification.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TAS5707PHP is designated "Not For New Designs," indicating that Texas Instruments no longer provides active technical support, design resources, or long-term availability guarantees for this component. The TAS5805MPWP carries "Active" product status, ensuring ongoing manufacturer support and extended component availability.

Compliance & Certification Alignment: Both components maintain ROHS3 compliance and identical moisture sensitivity ratings (MSL 3, 168 Hours), ensuring compatibility with standard manufacturing processes and supply chain handling requirements. Both components are REACH Unaffected and classified under ECCN EAR99.

Performance Headroom: The TAS5805MPWP delivers 23W per channel at 8Ω in stereo configuration, exceeding the TAS5707PHP specification of 20.6W per channel. This performance margin provides additional design flexibility and thermal margin in applications operating at rated power levels.

Supply Voltage Compatibility: The TAS5805MPWP supply voltage range (4.5V to 26.4V) fully encompasses the TAS5707PHP operating range (8V to 24V), ensuring direct compatibility with existing power supply designs without modification.

Package Transition: The TAS5805MPWP utilizes a 28-PowerTSSOP package compared to the 48-PowerTQFP of the original component. This represents a reduction in pin count and package footprint. PCB layout modifications are required to accommodate the different package geometry and pin configuration.

Frequently Asked Questions (FAQ)

Q: Can the TAS5805MPWP directly replace the TAS5707PHP without PCB modifications?

A: The TAS5805MPWP cannot be used as a direct pin-for-pin replacement. The TAS5707PHP uses a 48-pin PowerTQFP package, while the TAS5805MPWP uses a 28-pin PowerTSSOP package. Pin assignments differ between the two devices. PCB layout redesign is required, including modifications to the amplifier signal routing, power distribution, and control interface connections.

Q: Are the digital control interfaces compatible between these two amplifiers?

A: Both devices support I2C and I2S digital interfaces for audio data and control signal transmission. However, specific register maps, command structures, and protocol implementations may differ. Firmware and software control routines must be evaluated and potentially modified to accommodate the TAS5805MPWP device-specific requirements.

Q: What is the impact of the extended operating temperature range of the TAS5805MPWP?

A: The TAS5805MPWP operates from -25°C to 85°C, compared to the TAS5707PHP range of 0°C to 85°C. This extended lower temperature limit provides additional operational margin in cold environment applications. Applications operating exclusively within the 0°C to 85°C range experience no functional difference.

Q: Does the higher output power of the TAS5805MPWP require changes to the output stage design?

A: The TAS5805MPWP delivers 23W per channel at 8Ω compared to 20.6W for the TAS5707PHP. Existing output coupling capacitors, speaker connectors, and PCB trace sizing must be evaluated to confirm adequate current handling capability. Thermal management design may require optimization to accommodate the higher power dissipation potential.

Q: Are there feature differences between the TAS5707PHP and TAS5805MPWP?

A: The TAS5707PHP integrates depop, digital inputs, I2C, I2S, short-circuit and thermal protection, shutdown, and volume control features. The TAS5805MPWP feature set is not explicitly detailed in the provided specifications. Detailed feature comparison requires consultation of the respective device datasheets to identify any functional gaps or additions.

Q: What is the inventory status for these components?

A: The TAS5707PHP has 1,375 pieces in stock (New Original, Tray packaging). The TAS5805MPWP has 2,072 pieces in stock (New Original, Tube packaging). Long-term availability of the TAS5707PHP is not guaranteed due to its "Not For New Designs" status. The TAS5805MPWP, with Active product status, offers superior long-term supply chain reliability.