TAS5111DAD Equivalent & Substitute Parts

Part Overview

The TAS5111DAD is a Class D audio amplifier integrated circuit manufactured by Texas Instruments, designed for mono audio applications. This device delivers 93W output power at 4Ω load and operates across a 3V to 3.6V supply voltage range. The TAS5111DAD is classified as an obsolete product, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current manufacturing and supply chain standards.

Substiute Parts

TAS5111DAD

Texas InstrumentsIn Stock: 3903TAS5111DAD 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

Substitute parts for the TAS5111DAD are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Amplifier type classification (Class D)
• Surface mount packaging compatibility
• RoHS3 compliance status
• Active product status for ongoing availability
• Texas Instruments manufacturer continuity

Secondary Compatibility Factors:

• Output channel configuration (mono vs. stereo capability)
• Supply voltage operating range
• Output power delivery specifications
• Thermal and protection features
• Package footprint dimensions

The TAS5111DAD operates in a constrained 3V to 3.6V supply range specific to low-voltage applications. Substitute parts identified below operate at higher supply voltages (4.5V minimum), requiring circuit design modifications for direct replacement in the original 3V to 3.6V application. However, these substitutes provide active product status and enhanced thermal characteristics suitable for alternative system architectures.

Parameter Comparison

Engineering Selection Recommendations

TPA3128D2DAPR Selection Criteria:

The TPA3128D2DAPR maintains identical package geometry (32-PowerTSSOP) to the TAS5111DAD, enabling direct footprint compatibility on existing printed circuit boards. Both devices share identical moisture sensitivity classification (MSL 3), requiring equivalent handling and storage protocols. The TPA3128D2DAPR is classified as an active product with extended operating temperature range (-40°C to 85°C), providing superior thermal performance compared to the obsolete TAS5111DAD. Supply voltage requirements begin at 4.5V minimum, necessitating circuit redesign for applications originally constrained to 3V to 3.6V operation. Short-circuit protection is specified for the TPA3128D2DAPR, matching the protection feature set of the original device.

TAS5825MRHBR Selection Criteria:

The TAS5825MRHBR represents an active product alternative with enhanced moisture sensitivity performance (MSL 1, unlimited shelf life). This device operates across a wider supply voltage range (4.5V to 26.4V) and provides extended operating temperature coverage (-25°C to 85°C). Package geometry differs from the original (32-VFQFN vs. 32-PowerTSSOP), requiring printed circuit board redesign. The TAS5825MRHBR delivers higher output power density at 8Ω load (38W per channel) compared to the TPA3128D2DAPR specification. Both substitute parts maintain ROHS3 compliance and Texas Instruments manufacturer continuity.

Compliance and Certification Alignment:

All identified substitute parts maintain ROHS3 compliance, REACH unaffected status, and identical ECCN/HTSUS classifications as the original TAS5111DAD, ensuring regulatory continuity for applications subject to export control and environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the TPA3128D2DAPR directly replace the TAS5111DAD on existing circuit boards?

A: The TPA3128D2DAPR shares identical package geometry (32-PowerTSSOP, 0.240" width, 6.10mm) with the TAS5111DAD, enabling direct footprint compatibility. However, the minimum supply voltage requirement of 4.5V for the TPA3128D2DAPR differs from the original 3V to 3.6V specification. Circuit redesign is required for applications operating at the original supply voltage.

Q: What is the primary functional difference between the TPA3128D2DAPR and TAS5825MRHBR?

A: The TPA3128D2DAPR maintains the 32-PowerTSSOP package format of the original TAS5111DAD, while the TAS5825MRHBR uses a 32-VFQFN package. The TAS5825MRHBR provides superior moisture sensitivity performance (MSL 1 vs. MSL 3), allowing unlimited shelf life storage. Output power specifications differ: TPA3128D2DAPR delivers 30W per channel at 8Ω, while TAS5825MRHBR delivers 38W per channel at 8Ω.

Q: Are both substitute parts suitable for low-voltage applications originally designed for 3V to 3.6V operation?

A: Neither substitute part operates below 4.5V supply voltage. Applications requiring 3V to 3.6V operation cannot use these substitutes without complete power supply circuit redesign. Alternative amplifier devices with lower supply voltage specifications must be evaluated for such applications.

Q: What are the thermal operating range differences between the original and substitute parts?

A: The TAS5111DAD operates across 0°C to 70°C. The TPA3128D2DAPR extends this range to -40°C to 85°C, providing superior low-temperature performance. The TAS5825MRHBR operates across -25°C to 85°C. Both substitutes provide enhanced high-temperature capability compared to the original specification.

Q: How do moisture sensitivity levels affect component handling and storage?

A: The TAS5111DAD and TPA3128D2DAPR both specify MSL 3 (168-hour floor life), requiring controlled storage conditions and bake-out procedures before reflow soldering. The TAS5825MRHBR specifies MSL 1 (unlimited floor life), eliminating moisture sensitivity constraints and reducing manufacturing process complexity.

Q: Do all parts maintain equivalent protection features?

A: The TAS5111DAD specifies digital inputs, mute, short-circuit protection, thermal protection, and shutdown features. The TPA3128D2DAPR specifies short-circuit protection. The TAS5825MRHBR does not list specific protection features in the provided specifications. Feature parity should be verified against detailed datasheets for applications requiring specific protection functionality.

Q: What inventory availability exists for these substitute parts?

A: The TAS5111DAD (obsolete) has 3,888 pieces in stock. The TPA3128D2DAPR (active) has 26,711 pieces available. The TAS5825MRHBR (active) has 17,011 pieces available. Active product status ensures ongoing supply continuity for the substitute parts.