LM384N Equivalent & Substitute Parts

Part Overview

The LM384N is a Class AB audio amplifier integrated circuit manufactured by Texas Instruments, designed for mono audio applications with 5.5W output power at 8Ω load impedance. The device operates across a 12V to 26V supply voltage range and includes integrated short-circuit and thermal protection features. The LM384N is classified as an obsolete product, necessitating identification of equivalent substitute components for ongoing design support and procurement continuity.

Substiute Parts

LM384N

Texas InstrumentsIn Stock: 1699LM384N Datasheet

Current PartRFQ

LM384N/NOPB

Texas InstrumentsIn Stock: 1361LM384N/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM384N is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Criteria:

• Amplifier topology: Class AB configuration
• Output channels: Single-channel (mono) operation
• Output power specification: 5.5W at 8Ω load impedance
• Supply voltage range: 12V to 26V operation
• Protection functionality: Short-circuit and thermal protection integration

Mechanical Compatibility Criteria:

• Package type: 14-DIP form factor with 0.300" (7.62mm) pitch
• Mounting technology: Through-hole PCB assembly
• Pin count and pinout: 14-pin configuration

Environmental Compatibility Criteria:

• Operating temperature range: 0°C to 70°C
• Moisture sensitivity classification: MSL 1 (Unlimited)

Only components meeting all specified parameters across electrical, mechanical, and environmental categories qualify as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The LM384N/NOPB serves as the direct substitute for the obsolete LM384N. Both components are manufactured by Texas Instruments and share identical electrical and mechanical specifications across all critical parameters: Class AB amplifier topology, 5.5W mono output at 8Ω, 12V to 26V supply range, 14-DIP through-hole package, and equivalent protection features.

The primary distinction between these components is product lifecycle status and regulatory compliance. The LM384N is classified as obsolete, while the LM384N/NOPB maintains active product status. The LM384N/NOPB additionally achieves ROHS3 compliance, whereas the original LM384N is non-compliant. Both components maintain identical REACH and ECCN classifications.

For new designs and procurement of replacement components, the LM384N/NOPB is the appropriate selection due to its active availability and enhanced regulatory compliance posture. Existing designs utilizing the LM384N can transition to the LM384N/NOPB without circuit modification, as all functional and mechanical parameters remain equivalent.

Frequently Asked Questions (FAQ)

Q: Can the LM384N/NOPB directly replace the LM384N in existing circuit designs?

A: Yes. The LM384N/NOPB is electrically and mechanically equivalent to the LM384N. Both components feature identical Class AB amplifier topology, 5.5W output power at 8Ω load, 12V to 26V supply voltage range, short-circuit and thermal protection, 14-DIP through-hole package configuration, and operating temperature range of 0°C to 70°C. No circuit modifications are required for substitution.

Q: What is the significance of the "/NOPB" suffix in the LM384N/NOPB part number?

A: The "/NOPB" suffix indicates lead-free (no-lead plating) packaging, reflecting compliance with RoHS3 regulations. This designation distinguishes the component from legacy versions and confirms adherence to current environmental and regulatory standards.

Q: Why is the LM384N classified as obsolete?

A: The LM384N has reached end-of-life status in the Texas Instruments product portfolio. The LM384N/NOPB represents the current active equivalent, incorporating modern manufacturing standards and regulatory compliance requirements.

Q: Are there any differences in moisture sensitivity between the LM384N and LM384N/NOPB?

A: No. Both components maintain identical Moisture Sensitivity Level (MSL) classification of 1 (Unlimited), indicating no moisture sensitivity constraints for storage or handling.

Q: What packaging format is supplied for the LM384N/NOPB?

A: The LM384N/NOPB is supplied in tube packaging, whereas the original LM384N packaging format is not specified in the component data. Both maintain the identical 14-DIP (0.300", 7.62mm) physical form factor suitable for through-hole PCB assembly.

Q: Are both components suitable for the same operating temperature applications?

A: Yes. Both the LM384N and LM384N/NOPB operate across the identical temperature range of 0°C to 70°C (TA), ensuring equivalent thermal performance characteristics for specified applications.