TAS5111ADADR Equivalent & Substitute Parts

Part Overview

The TAS5111ADADR is a Class D audio amplifier IC manufactured by Texas Instruments, designed for mono audio applications with 93W output power at 4Ω load. This device operates within the 3V to 3.6V supply voltage range and integrates digital inputs, mute control, short-circuit protection, and thermal shutdown functionality. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

TAS5111ADADR

Texas InstrumentsIn Stock: 1990TAS5111ADADR Datasheet

Current PartRFQ

TAS5825MRHBR

Texas InstrumentsIn Stock: 17036TAS5825MRHBR Datasheet

MFR RecommendedRFQ

TPA3128D2DAPR

Texas InstrumentsIn Stock: 26773TPA3128D2DAPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAS5111ADADR is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Amplifier type (Class D topology)
• Output channel configuration (mono vs. stereo capability)
• Supply voltage operating range
• Output power specifications at defined load impedances
• Protection features (short-circuit, thermal)

Mechanical Compatibility Criteria:

• Package type and pin count
• Surface mount compatibility
• Physical dimensions

Compliance & Status Criteria:

• RoHS3 compliance status
• Product lifecycle status (active vs. obsolete)
• Moisture sensitivity level

The substitute parts listed below are Texas Instruments Class D amplifier ICs that share common electrical protection features and surface mount packaging. However, substitution requires careful evaluation of output channel configuration and supply voltage requirements, as these parameters differ between the main part and alternatives.

Parameter Comparison

Engineering Selection Recommendations

TPA3128D2DAPR Considerations:

• Active product status with ongoing manufacturer support
• Identical 32-PowerTSSOP package footprint enables direct PCB layout compatibility
• Stereo output configuration requires circuit redesign if mono operation is mandatory
• Supply voltage range (4.5V ~ 26V) is incompatible with the TAS5111ADADR's 3V ~ 3.6V requirement
• Extended operating temperature range (-40°C ~ 85°C) exceeds original specification
• ROHS3 compliant with matching MSL rating

TAS5825MRHBR Considerations:

• Active product status with ongoing manufacturer support
• Stereo output configuration requires circuit redesign if mono operation is mandatory
• Supply voltage range (4.5V ~ 26.4V) is incompatible with the TAS5111ADADR's 3V ~ 3.6V requirement
• Different package type (32-VQFN) requires PCB layout modification
• Superior MSL rating (1, Unlimited) provides improved moisture handling
• Extended operating temperature range (-25°C ~ 85°C) exceeds original specification
• ROHS3 compliant

Critical Limitation: Neither substitute part operates within the original 3V ~ 3.6V supply voltage specification. Both require minimum 4.5V supply voltage, representing a fundamental electrical incompatibility with the TAS5111ADADR design envelope.

Frequently Asked Questions (FAQ)

Q: Can TPA3128D2DAPR directly replace TAS5111ADADR in existing designs?

A: Direct replacement is not possible. While both use the 32-PowerTSSOP package, the TPA3128D2DAPR requires 4.5V minimum supply voltage compared to the TAS5111ADADR's 3V ~ 3.6V range. Additionally, the TPA3128D2DAPR is a stereo amplifier, requiring circuit redesign for mono applications.

Q: What is the primary electrical incompatibility between these parts?

A: The TAS5111ADADR operates at 3V ~ 3.6V supply voltage, while both substitute parts (TPA3128D2DAPR and TAS5825MRHBR) require minimum 4.5V supply voltage. This represents a fundamental design parameter mismatch.

Q: Does package compatibility exist between TAS5111ADADR and TPA3128D2DAPR?

A: Yes. Both parts use the 32-PowerTSSOP package with identical physical dimensions (0.240", 6.10mm width), enabling PCB footprint compatibility. However, electrical parameter differences prevent functional substitution.

Q: What are the output configuration differences?

A: The TAS5111ADADR is a mono amplifier (1-channel output). Both substitute parts are stereo amplifiers (2-channel output), requiring circuit topology changes for applications requiring mono operation.

Q: How do operating temperature ranges compare?

A: The TAS5111ADADR operates 0°C ~ 70°C. The TPA3128D2DAPR operates -40°C ~ 85°C, and the TAS5825MRHBR operates -25°C ~ 85°C. Both substitutes provide extended temperature capability beyond the original specification.

Q: Are all parts RoHS3 compliant?

A: Yes. The TAS5111ADADR, TPA3128D2DAPR, and TAS5825MRHBR are all ROHS3 compliant.

Q: What is the significance of MSL ratings?

A: The TAS5111ADADR and TPA3128D2DAPR both have MSL 3 (168 hours maximum floor life). The TAS5825MRHBR has MSL 1 (unlimited floor life), indicating superior moisture resistance and reduced handling constraints during assembly.