TDA7498L Equivalent & Substitute Parts

Part Overview

The TDA7498L is a Class D stereo amplifier integrated circuit manufactured by STMicroelectronics, designed for 2-channel audio amplification applications. This device delivers 80W per channel at 6Ω load impedance and operates across a 14V to 36V supply voltage range. The TDA7498L is classified as obsolete, indicating discontinuation from active production. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this amplifier topology.

Key Parameters

Parameter	Value
Manufacturer	STMicroelectronics
Category	Linear, Amplifiers
Type	Class D
Output Configuration	2-Channel (Stereo)
Max Output Power	80W x 2 @ 6Ω
Supply Voltage Range	14V ~ 36V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package Type	36-PowerFSOP (0.295", 7.50mm Width)
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the TDA7498L is determined by strict equivalence across the following critical parameters:

Amplifier Classification: Class D topology with 2-channel stereo output configuration

Power Output Specification: 80W per channel at 6Ω load impedance

Electrical Operating Range: Supply voltage 14V to 36V; operating temperature -40°C to 85°C

Physical Form Factor: 36-PowerFSOP package with 0.295" (7.50mm) width

Regulatory Compliance: ROHS3 compliance, REACH unaffected status, and MSL 3 rating

Functional Features: Differential inputs, mute control, short-circuit protection, thermal protection, and standby mode

Parts meeting all these parameters are classified as direct substitutes. Deviations in any parameter disqualify a part from substitution eligibility.

Parameter Comparison

Parameter	TDA7498L	TDA7498LTR
Manufacturer	STMicroelectronics	STMicroelectronics
Product Status	Obsolete	Active
Category	Linear, Amplifiers	Linear, Amplifiers
Type	Class D	Class D
Output Type	2-Channel (Stereo)	2-Channel (Stereo)
Max Output Power @ Load	80W x 2 @ 6Ω	80W x 2 @ 6Ω
Supply Voltage Range	14V ~ 36V	14V ~ 36V
Features	Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby	Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	36-PowerFSOP (0.295", 7.50mm Width)	36-PowerFSOP (0.295", 7.50mm Width)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS Code	8542.33.0001	8542.33.0001

Engineering Selection Recommendations

The TDA7498LTR serves as the direct substitute for the obsolete TDA7498L. Both parts share identical electrical specifications, thermal characteristics, and physical packaging. The primary distinction is product status: the TDA7498L is obsolete, while the TDA7498LTR maintains active production status.

Compliance Alignment: Both parts maintain ROHS3 compliance and REACH unaffected designation, ensuring regulatory consistency across design transitions.

Supply Chain Consideration: The TDA7498LTR is currently in active production with documented inventory availability, providing supply continuity for new designs and production requirements.

Packaging Compatibility: Both parts utilize the 36-PowerFSOP package format with identical dimensional specifications, enabling direct PCB layout compatibility without redesign.

Functional Equivalence: Identical feature sets, including differential input architecture, mute functionality, and integrated protection mechanisms, ensure behavioral equivalence in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the TDA7498LTR directly replace the TDA7498L in existing designs?

A: Yes. The TDA7498LTR is electrically and mechanically equivalent to the TDA7498L. Both parts share identical power output specifications (80W x 2 @ 6Ω), supply voltage range (14V–36V), operating temperature range (-40°C to 85°C), and 36-PowerFSOP package dimensions. No circuit modifications or PCB redesign are required.

Q: What is the significance of the product status difference between these parts?

A: The TDA7498L is classified as obsolete, indicating STMicroelectronics has discontinued production. The TDA7498LTR maintains active production status, ensuring ongoing availability and supply chain reliability for new applications and production runs.

Q: Are there packaging differences between TDA7498L and TDA7498LTR?

A: No. Both parts are supplied in the 36-PowerFSOP package with 0.295" (7.50mm) width. Physical dimensions, pin configuration, and mounting requirements are identical.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the TDA7498L and TDA7498LTR are ROHS3 compliant, REACH unaffected, and carry the same ECCN (EAR99) and HTSUS (8542.33.0001) classifications.

Q: What is the MSL rating for these amplifier ICs?

A: Both parts carry an MSL rating of 3 with a 168-hour moisture sensitivity window. Standard moisture control procedures during storage and handling apply.

Q: Are the electrical features identical between these two parts?

A: Yes. Both parts include differential inputs, mute control, short-circuit protection, thermal protection, and standby mode functionality.

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