LM4839MTE/NOPB Equivalent & Substitute Parts

Part Overview

The LM4839MTE/NOPB is a Class AB stereo amplifier IC manufactured by Texas Instruments, part of the Boomer® series. This device delivers 2.2W per channel at 3Ohm load and 95mW per channel at 32Ohm load, with integrated features including bass boost, depop, input multiplexer, mute, shutdown, thermal protection, and volume control. The LM4839MTE/NOPB is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring stereo headphone amplification with Class AB topology and the specified electrical and mechanical characteristics.

Substiute Parts

LM4839MTE/NOPB

Texas InstrumentsIn Stock: 953LM4839MTE/NOPB Datasheet

Current PartRFQ

LM4836MTEX/NOPB

Texas InstrumentsIn Stock: 1512LM4836MTEX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM4839MTE/NOPB is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Class AB amplifier topology
• 2-Channel stereo output configuration with stereo headphone capability
• Output power specifications: 2.2W x 2 @ 3Ohm and 95mW x 2 @ 32Ohm
• Supply voltage range: 2.7V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Identical integrated feature set: Bass Boost, Depop, Input Multiplexer, Mute, Shutdown, Thermal Protection, Volume Control

Mechanical Equivalence Criteria:

• Package type: 28-PowerTSSOP (0.173", 4.40mm Width)
• Surface mount mounting type
• Pin-compatible footprint

Compliance Equivalence Criteria:

• RoHS3 compliance
• MSL Level 1 rating
• REACH unaffected status

The LM4836MTEX/NOPB meets all electrical, mechanical, and compliance requirements for direct substitution. The primary distinction is product status: the LM4839MTE/NOPB is obsolete, while the LM4836MTEX/NOPB is active production status.

Parameter Comparison

Engineering Selection Recommendations

The LM4836MTEX/NOPB is the direct substitute for the LM4839MTE/NOPB based on complete electrical and mechanical equivalence. Selection of the LM4836MTEX/NOPB is supported by the following factors:

Product Status: The LM4839MTE/NOPB is classified as obsolete, creating supply risk and potential long-term availability constraints. The LM4836MTEX/NOPB maintains active production status with Texas Instruments, ensuring sustained availability and supply chain continuity.

Compliance Certification: Both parts maintain identical RoHS3 compliance, MSL Level 1 rating, and REACH unaffected status, satisfying regulatory and environmental requirements without modification.

Electrical Performance: All electrical specifications are identical, including output power delivery, supply voltage tolerance, operating temperature range, and integrated feature functionality. No circuit redesign or application modification is required.

Mechanical Compatibility: Both parts utilize the identical 28-PowerTSSOP package with matching footprint dimensions (0.173", 4.40mm Width) and surface mount mounting type, enabling direct PCB layout compatibility.

Packaging Consideration: The LM4836MTEX/NOPB is supplied in Tape & Reel (TR) format, which is standard for production environments. If bulk packaging is required, consult Texas Instruments for alternative packaging options of the LM4836 base product number.

Frequently Asked Questions (FAQ)

Q: Can the LM4836MTEX/NOPB be used as a direct replacement for the LM4839MTE/NOPB without circuit modification?

A: Yes. The LM4836MTEX/NOPB is electrically and mechanically equivalent to the LM4839MTE/NOPB. All electrical specifications, integrated features, package dimensions, and pin configurations are identical. Direct substitution on existing PCBs is supported without circuit redesign.

Q: What is the difference between the LM4839MTE/NOPB and LM4836MTEX/NOPB?

A: The primary differences are product status and packaging format. The LM4839MTE/NOPB is obsolete and supplied in bulk packaging, while the LM4836MTEX/NOPB is active production status and supplied in Tape & Reel (TR) format. All electrical and mechanical specifications are identical.

Q: Are the pin configurations identical between these two parts?

A: Yes. Both the LM4839MTE/NOPB and LM4836MTEX/NOPB use the 28-PowerTSSOP package with identical pin assignments and footprint dimensions (0.173", 4.40mm Width). PCB layout compatibility is complete.

Q: Does the LM4836MTEX/NOPB meet the same compliance requirements as the LM4839MTE/NOPB?

A: Yes. The LM4836MTEX/NOPB maintains RoHS3 compliance, MSL Level 1 rating, and REACH unaffected status, identical to the LM4839MTE/NOPB. No compliance modifications are required.

Q: What is the output power specification for both parts?

A: Both parts deliver 2.2W per channel at 3Ohm load and 95mW per channel at 32Ohm load. Output power performance is identical across all specified load conditions.

Q: Are the supply voltage requirements the same?

A: Yes. Both parts operate across the identical supply voltage range of 2.7V to 5.5V. No power supply modifications are required for substitution.

Q: What integrated features are included in both parts?

A: Both the LM4839MTE/NOPB and LM4836MTEX/NOPB include Bass Boost, Depop, Input Multiplexer, Mute, Shutdown, Thermal Protection, and Volume Control. Feature functionality is identical.

Q: Is the operating temperature range the same for both parts?

A: Yes. Both parts operate across the identical temperature range of -40°C to 85°C (TA). Thermal performance specifications are equivalent.