TAS5614ADKD Equivalent & Substitute Parts

Part Overview

The TAS5614ADKD is a Class D audio amplifier IC from Texas Instruments' PurePath™ HD series, designed for mono or stereo audio applications with maximum output power of 300W at 2Ω (single channel) or 200W at 3Ω (dual channel). The device integrates protection features including depop, short-circuit protection, thermal protection, and shutdown functionality. The TAS5614ADKD is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Base Product Number	TAS5614
Series	PurePath™ HD
Type	Class D
Output Configuration	1-Channel (Mono) or 2-Channel (Stereo)
Max Output Power (1 Channel @ 2Ω)	300W
Max Output Power (2 Channels @ 3Ω)	200W
Supply Voltage Range	18V ~ 38V
Operating Temperature	0°C ~ 70°C (TA)
Protection Features	Depop, Digital Inputs, Short-Circuit and Thermal Protection, Shutdown
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the TAS5614ADKD is determined by electrical and mechanical compatibility within the TAS5614 product family. The critical parameters governing substitution are:

Electrical Parameters:

Class D amplifier topology
Output configuration (mono/stereo capability)
Maximum output power specifications (300W @ 2Ω single channel; 200W @ 3Ω dual channel)
Supply voltage range (18V ~ 38V)
Operating temperature range (0°C ~ 70°C)
Integrated protection features (depop, short-circuit, thermal, shutdown)

Mechanical Parameters:

Surface mount packaging
Pin count and package type
Exposed pad configuration

Compliance Parameters:

RoHS3 compliance
REACH unaffected status

The TAS5614APHDR qualifies as a direct electrical substitute, sharing identical electrical specifications and protection features. The primary difference is packaging format: TAS5614ADKD uses 44-HSSOP while TAS5614APHDR uses 64-HTQFP (14x14), requiring PCB layout redesign.

Parameter Comparison

Parameter	TAS5614ADKD	TAS5614APHDR	Compatibility
Manufacturer	Texas Instruments	Texas Instruments	Identical
Base Product Number	TAS5614	TAS5614	Identical
Series	PurePath™ HD	PurePath™ HD	Identical
Type	Class D	Class D	Identical
Output Configuration	1-Channel (Mono) or 2-Channel (Stereo)	1-Channel (Mono) or 2-Channel (Stereo)	Identical
Max Output Power (1 Channel @ 2Ω)	300W	300W	Identical
Max Output Power (2 Channels @ 3Ω)	200W	200W	Identical
Supply Voltage Range	18V ~ 38V	18V ~ 38V	Identical
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	Identical
Protection Features	Depop, Digital Inputs, Short-Circuit and Thermal Protection, Shutdown	Depop, Digital Inputs, Short-Circuit and Thermal Protection, Shutdown	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package Type	44-HSSOP (0.433", 11.00mm Width)	64-HTQFP (14x14)	Different
Moisture Sensitivity Level (MSL)	4 (72 Hours)	3 (168 Hours)	Different
Product Status	Obsolete	Active	Different
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical

Engineering Selection Recommendations

For New Designs: The TAS5614APHDR is the recommended selection. This part maintains active product status with Texas Instruments, ensuring long-term availability and technical support. The 64-HTQFP package provides improved moisture sensitivity characteristics (MSL 3 versus MSL 4), reducing handling and storage risk during manufacturing. Both parts satisfy RoHS3 and REACH compliance requirements.

For Existing Production (TAS5614ADKD Replacement): The TAS5614APHDR provides electrical equivalence with identical amplifier performance specifications. PCB redesign is required due to package format change from 44-HSSOP to 64-HTQFP (14x14). Pin mapping and layout modifications must be completed prior to implementation. The active product status of TAS5614APHDR ensures supply chain continuity.

Compliance Considerations: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for EU and international markets.

Frequently Asked Questions (FAQ)

Q: Can TAS5614APHDR directly replace TAS5614ADKD without PCB modification?

A: No. While electrical specifications are identical, the package types differ fundamentally. TAS5614ADKD uses 44-HSSOP packaging while TAS5614APHDR uses 64-HTQFP (14x14). PCB layout redesign, including footprint changes and trace routing, is required.

Q: Are the electrical performance characteristics identical between these parts?

A: Yes. Both parts share identical Class D amplifier topology, output power ratings (300W @ 2Ω single channel; 200W @ 3Ω dual channel), supply voltage range (18V ~ 38V), operating temperature range (0°C ~ 70°C), and integrated protection features (depop, short-circuit, thermal, shutdown).

Q: Why is TAS5614ADKD classified as obsolete?

A: Product status reflects Texas Instruments' lifecycle management. The TAS5614APHDR represents the active continuation of the TAS5614 amplifier family within the PurePath™ HD series.

Q: What is the significance of the different Moisture Sensitivity Levels (MSL)?

A: TAS5614ADKD has MSL 4 (72-hour floor life), while TAS5614APHDR has MSL 3 (168-hour floor life). MSL 3 provides extended handling time after moisture exposure, reducing manufacturing risk and improving process flexibility.

Q: Are both parts RoHS3 and REACH compliant?

A: Yes. Both TAS5614ADKD and TAS5614APHDR are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for electronic components in EU and international markets.

Q: What packaging format considerations apply to TAS5614APHDR?

A: TAS5614APHDR is supplied in Tape & Reel (TR) format. The 64-HTQFP (14x14) package has larger footprint dimensions compared to 44-HSSOP, requiring PCB area assessment during design transition.

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