TPA0122PWPR Equivalent & Substitute Parts

Part Overview

The TPA0122PWPR is a stereo Class AB audio amplifier IC manufactured by Texas Instruments, designed for 2-channel stereo headphone applications. This device delivers 2.6W per channel at 8Ohm load impedance and operates from a 4.5V to 5.5V supply voltage. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support, production continuity, and system maintenance. The TPA0122PWPR integrates depop circuitry, differential inputs, input multiplexer functionality, shutdown control, thermal protection, and integrated volume control, making it suitable for portable audio and consumer electronics applications.

Substiute Parts

TPA0122PWPR

Texas InstrumentsIn Stock: 2179TPA0122PWPR Datasheet

Current PartRFQ

TPA6017A2PWPR

Texas InstrumentsIn Stock: 4344TPA6017A2PWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPA0122PWPR is determined by the following critical parameters:

Supply Voltage Compatibility: Both the main part and substitute must operate within the 4.5V to 5.5V range to ensure direct integration into existing power supply designs without modification.

Amplifier Topology: Class AB topology is maintained across all substitute candidates to preserve audio performance characteristics and thermal behavior.

Output Configuration: 2-channel stereo output is required to match the dual-channel architecture of the original design.

Mounting and Package Form Factor: Surface mount technology with HTSSOP package family ensures mechanical and thermal compatibility with existing PCB layouts.

Operating Temperature Range: The -40°C to 85°C specification must be met to maintain reliability across the intended application environment.

Regulatory Compliance: RoHS3 compliance and REACH unaffected status are mandatory for current production and supply chain requirements.

The TPA6017A2PWPR qualifies as a substitute based on these parameters. While output power specifications differ at specific load impedances, both devices share the same supply voltage range, Class AB topology, stereo output configuration, surface mount packaging within the HTSSOP family, and identical regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TPA0122PWPR is classified as obsolete, while the TPA6017A2PWPR maintains active product status with Texas Instruments. Active status ensures continued availability, technical support, and supply chain reliability for new designs and production continuity.

Regulatory and Compliance Alignment: Both devices maintain identical RoHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental and regulatory requirements across global markets.

Supply Voltage and Operating Temperature: Both parts operate within the identical 4.5V to 5.5V supply range and -40°C to 85°C temperature specification, enabling direct substitution in existing power supply and thermal management designs without circuit modification.

Package Consideration: The TPA6017A2PWPR uses a 20-pin PowerTSSOP package compared to the 24-pin PowerTSSOP of the TPA0122PWPR. Both maintain the same 0.173" width and 4.40mm package height, but PCB layout modifications are required to accommodate the different pin count and pinout configuration.

Feature Set Differences: The TPA0122PWPR includes input multiplexer and volume control features not specified for the TPA6017A2PWPR. System designs relying on these integrated functions require external component implementation when migrating to the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the TPA6017A2PWPR directly replace the TPA0122PWPR without PCB modifications?

A: No. While both devices share identical supply voltage, operating temperature, and regulatory compliance specifications, the TPA6017A2PWPR uses a 20-pin PowerTSSOP package versus the 24-pin PowerTSSOP of the TPA0122PWPR. PCB layout redesign is required to accommodate the different pin count and pinout configuration.

Q: What is the impact of the different output power specifications at different load impedances?

A: The TPA0122PWPR delivers 2.6W per channel at 8Ohm load, while the TPA6017A2PWPR delivers 2W per channel at 3Ohm load. Load impedance and power delivery requirements must be evaluated against the specific application to determine suitability.

Q: Are the integrated features of the TPA0122PWPR available in the TPA6017A2PWPR?

A: The TPA0122PWPR includes input multiplexer and volume control functions. The TPA6017A2PWPR specifies depop and differential inputs but does not list these additional features. External circuitry must be implemented if these functions are required in the design.

Q: Why is the TPA6017A2PWPR recommended as a substitute despite being obsolete?

A: The TPA6017A2PWPR maintains active product status with Texas Instruments, ensuring ongoing availability and supply chain support. The TPA0122PWPR is classified as obsolete, making the TPA6017A2PWPR the preferred alternative for production continuity.

Q: Are moisture sensitivity and handling requirements identical between these parts?

A: Yes. Both devices carry MSL 2 (1 Year) moisture sensitivity level classification, requiring identical storage, handling, and reflow procedures during manufacturing and assembly.