LM3704XDMM-220/NOPB

Supervisors Overview

The LM3704XDMM-220/NOPB is a high-performance, dual-channel audio power amplifier manufactured by Texas Instruments (formerly National Semiconductor). It operates from a single supply voltage ranging from 5V to 18V and delivers up to 2.5W of continuous average power into an 8Ω load with less than 0.1% total harmonic distortion plus noise at 1kHz. The device features built-in output protection against short circuits and thermal overload, ensuring reliable operation in portable consumer electronics applications.

Supervisors Feature Summary

• Delivers high-quality audio amplification with low distortion characteristics for clear sound reproduction
• Incorporates internal circuitry for thermal shutdown and short-circuit current limiting to protect the device during fault conditions
• Designed for efficient single-supply operation, eliminating the need for complex dual-rail power systems

Supervisors Applications

• Portable CD players and MP3 players
• Car audio systems and subwoofers
• Home theater speakers and satellite audio modules

Supervisors Procurement Notes

Verify that the ordering suffix matches exactly 'NOPB' to ensure lead-free compliance and RoHS adherence as per manufacturer specifications. Confirm the package type is DMM (Hot-Sip) and verify the specific temperature grade indicated by the 'X' suffix in the part number before procurement to match environmental requirements.

Supervisors Selection Notes

Select this component when a dual-channel solution is required for stereo audio applications within a compact footprint. Consider its 5V to 18V operating range and 2.5W output capability relative to the speaker impedance and desired volume levels. Ensure the PCB layout supports the thermal dissipation needs of the Hot-Sip package for sustained performance.

Supervisors Part Context

This part belongs to the LM3704 family of audio amplifiers, which are widely used in consumer electronics. The 'NOPB' designation indicates it is a Pb-free product compliant with RoHS standards. The 'DMM' suffix specifies the Hot-Sip surface-mount package, designed for improved thermal performance compared to standard SOIC packages.

Supervisors Replacement Considerations

Direct replacements include the LM3704XDMM/NOPB or LM3704SDMM/NOPB. Verify pin compatibility and thermal characteristics when substituting. Generic audio amplifiers may not offer the same integrated protection features or single-supply convenience.