NJM2149R-TE1

Overview

The NJM2149R-TE1 is a low-voltage, single-channel Class-AB audio amplifier manufactured by Nisshinbo Micro Devices. It delivers 250 mW of output power into a 32 Ohm load with a total harmonic distortion plus noise of 0.5%. The device operates on a single power supply ranging from 2 V to 6 V and draws a typical operating current of 2.2 mA. Key electrical specifications include a gain of 90 dB, an input bias current of 200 nA, and differential input capability. It is housed in a compact VSP-8 surface-mount package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Class-AB topology optimized for low-voltage single-supply operation
• Differential input configuration for enhanced noise immunity
• High open-loop gain supporting accurate signal reproduction

Applications

• Portable consumer electronics requiring mono audio amplification
• Low-power battery-operated audio devices
• Compact speaker driver circuits in space-constrained designs

Procurement Notes

Verify the specific suffix R-TE1 against the manufacturer's official datasheet to confirm pinout compatibility and packaging type. Ensure that the VSP-8 package dimensions align with your PCB footprint requirements. Confirm RoHS compliance status through the latest official documentation before finalizing procurement decisions.

Selection Notes

Select this component when a single-channel solution is required for driving low-impedance loads under strict voltage constraints. The Class-AB architecture offers a balance between efficiency and linearity suitable for general audio applications. Evaluate the 2.2 mA quiescent current against system power budgets to ensure adequate battery life or thermal management capabilities are maintained.

Part Context

This part belongs to the NJM2149 series of audio amplifiers designed for portable applications. The series focuses on providing high-quality sound reproduction in minimal form factors. The NJM2149R-TE1 variant specifically utilizes the VSP-8 package to facilitate automated surface-mount assembly processes while maintaining robust performance characteristics across varying temperature conditions.

Replacement Considerations

Consult official substitution guides for compatible alternatives within the same product family. Verify that any replacement maintains identical pin configurations and electrical parameters to ensure seamless integration without circuit redesign.