LM4674TL/NOPB Equivalent & Substitute Parts Reference

Part Overview

The LM4674TL/NOPB is an amplifier IC from Texas Instruments, classified under Linear Amplifiers in the Boomer® series. It is a 2-channel (stereo) Class D amplifier housed in a 16-DSBGA package, featuring a maximum output power of 2.5W x 2 at 4 Ohm, and supports a supply voltage range of 2.4V to 5.5V. Key features include Depop, Differential Inputs, PWM, Short-Circuit Protection, and Shutdown. The device is currently marked as Obsolete. Identifying equivalent or substitute models is necessary to ensure continued design support and manufacturing, in response to its discontinued status and to maintain compatibility in existing and new applications.

Substiute Parts

LM4674TL/NOPB

Texas InstrumentsIn Stock: 777LM4674TL/NOPB Datasheet

Current PartRFQ

LM4674ATL/NOPB

Texas InstrumentsIn Stock: 1654LM4674ATL/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM4674TL/NOPB is determined strictly by matching the following parameters: manufacturer, base product number, IC type, output type, maximum output power and supported load, supply voltage range, feature set, mounting type, operating temperature, device package, package/case, environmental compliance (RoHS and REACH), and product status. Only products matching these criteria are included as substitutes. The substitute part LM4674ATL/NOPB is grouped based on identical electrical performance, mechanical package, and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The LM4674TL/NOPB is listed as Obsolete. The substitute LM4674ATL/NOPB is designated as Active and meets all provided compliance standards including RoHS3 and REACH, and carries the same ECCN and MSL classifications. Selection of LM4674ATL/NOPB is based solely on its identical parameters and active status, ensuring compliance continuity and supply availability.

Frequently Asked Questions (FAQ)

Q1: What are the key criteria for substituting LM4674TL/NOPB in amplifier applications?
A1: Substitution requires matching manufacturer, electrical performance (type, output power, output channels, supply voltage), package specifications, features, mounting type, operating range, and compliance.

Q2: Is the package format identical between LM4674TL/NOPB and LM4674ATL/NOPB?
A2: Both parts use the 16-DSBGA, 16-WFBGA, DSBGA package, ensuring mechanical compatibility for surface-mount applications.

Q3: Are all electrical features and protections present in both parts?
A3: Both parts feature Depop, Differential Inputs, PWM, Short-Circuit Protection, and Shutdown as specified.

Q4: Does the substitute LM4674ATL/NOPB differ in environmental compliance?
A4: Both parts are ROHS3 compliant, REACH unaffected, and meet the same ECCN and MSL classifications.

Q5: Why is it necessary to find a substitute for LM4674TL/NOPB?
A5: The main part is listed as Obsolete, so an Active, parameter-matched substitute ensures continued availability and compliance for new and existing designs.