TAS5613PHD Equivalent & Substitute Parts

Part Overview

The TAS5613PHD is a Class D audio amplifier IC manufactured by Texas Instruments, part of the PurePath™ HD series. This device supports mono or stereo operation with maximum output power of 300W at 2Ohm (mono) or 200W at 3Ohm (stereo). The TAS5613PHD is classified as "Not For New Designs," indicating that Texas Instruments has discontinued recommendations for new product development. Finding equivalent or substitute parts is necessary for legacy system support, maintenance, and repair applications where the original component is unavailable or inventory is depleted.

Substiute Parts

TAS5613PHD

Texas InstrumentsIn Stock: 1138TAS5613PHD Datasheet

Current PartRFQ

TPA3251D2DDV

Texas InstrumentsIn Stock: 2108TPA3251D2DDV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAS5613PHD is determined by the following critical parameters:

Functional Compatibility Criteria:

• Amplifier type: Class D topology
• Output channel configuration: Mono or stereo capability
• Maximum output power rating at specified load impedances
• Supply voltage operating range

Physical & Environmental Compatibility:

• Surface mount technology
• Operating temperature range: 0°C ~ 70°C
• Moisture sensitivity level and packaging format
• RoHS and REACH compliance status

Protection & Feature Set:

• Integrated short-circuit and thermal protection
• Depop functionality
• Shutdown capability

The TPA3251D2DDV is identified as a substitute based on shared Class D amplifier architecture, compatible supply voltage range (12V ~ 36V overlaps with 18V ~ 38V), surface mount packaging, identical operating temperature range, and equivalent protection features. However, the TPA3251D2DDV is a stereo-only device with 220W per channel at 3Ohm, which differs from the TAS5613PHD's mono/stereo flexibility and higher mono power rating.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution Scenarios:

The TPA3251D2DDV serves as a functional substitute for stereo-only applications where the TAS5613PHD's mono capability is not required. Both devices share identical Class D architecture, operating temperature specifications, and RoHS3 compliance. The TPA3251D2DDV maintains active product status with Texas Instruments, ensuring continued availability and support.

Critical Considerations:

1. Package Footprint Difference: The TAS5613PHD uses a 64-TQFP package (14x14mm), while the TPA3251D2DDV uses a 44-PowerTSSOP package. PCB layout redesign is required; direct pin-for-pin substitution is not possible.

2. Mono Operation Loss: Applications requiring mono amplification cannot use the TPA3251D2DDV without circuit modification. The TAS5613PHD supports configurable mono or stereo operation; the TPA3251D2DDV is stereo-only.

3. Supply Voltage Overlap: The TPA3251D2DDV operates within 12V ~ 36V, which overlaps the TAS5613PHD range of 18V ~ 36V. Systems operating below 18V require verification of TPA3251D2DDV performance at minimum supply voltage.

4. Output Power Characteristics: At 3Ohm load, the TPA3251D2DDV delivers 220W per channel versus the TAS5613PHD's 200W per channel. The TAS5613PHD achieves 300W in mono mode at 2Ohm, which the TPA3251D2DDV cannot replicate.

5. Compliance Status: Both parts maintain ROHS3 compliance and identical moisture sensitivity levels, supporting equivalent environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the TPA3251D2DDV replace the TAS5613PHD in all applications?

A: No. The TPA3251D2DDV is suitable only for stereo-only designs. Applications requiring mono operation or the TAS5613PHD's 300W mono capability at 2Ohm cannot use the TPA3251D2DDV without significant circuit redesign.

Q: What are the package compatibility implications?

A: The TAS5613PHD uses a 64-pin TQFP package (14x14mm), while the TPA3251D2DDV uses a 44-pin PowerTSSOP package. These packages have different pin counts, pin assignments, and physical dimensions. PCB layout and schematic modifications are mandatory; no direct footprint compatibility exists.

Q: Are both parts RoHS compliant?

A: Yes. Both the TAS5613PHD and TPA3251D2DDV are ROHS3 compliant with identical moisture sensitivity levels (MSL 3, 168 hours), supporting equivalent environmental and regulatory requirements.

Q: What is the supply voltage compatibility range?

A: The TAS5613PHD operates at 18V ~ 38V, while the TPA3251D2DDV operates at 12V ~ 36V. The overlap range is 18V ~ 36V. Systems operating between 12V and 18V can use the TPA3251D2DDV but not the TAS5613PHD.

Q: Why is the TAS5613PHD marked "Not For New Designs"?

A: This status indicates Texas Instruments has discontinued active development and recommendation of this part for new product designs. The TPA3251D2DDV, with active product status, represents the manufacturer's current technology direction for Class D stereo amplification.

Q: How do the output power ratings compare?

A: At 3Ohm stereo load, the TPA3251D2DDV delivers 220W per channel versus the TAS5613PHD's 200W per channel. However, the TAS5613PHD achieves 300W in mono mode at 2Ohm, which the stereo-only TPA3251D2DDV cannot match.

Q: Are differential inputs available on both parts?

A: The TAS5613PHD includes differential inputs as a specified feature. The TPA3251D2DDV specifications provided do not list differential inputs as a documented feature.