NCP2811ADTBR2G

Overview

The NCP2811ADTBR2G is a dual-channel Class AB audio power amplifier manufactured by onsemi. It operates within a supply voltage range of 2.7V to 5V and delivers maximum output power of 110mW per channel into a 16-ohm load, or 60mW into a 32-ohm load. The device is housed in a 14-pin TSSOP package with dimensions of 5.1 x 4.5 x 1.05mm. It supports an operating temperature range from -40°C to +85°C (TA) and features a bandwidth of 20kHz. The component is part of the NOCAP series and includes protection mechanisms such as short-circuit and thermal shutdown.

Feature Summary

• Dual-channel stereo output configuration for headphone applications
• Integrated pop-suppression circuitry to eliminate audible noise during power transitions
• Built-in short-circuit and thermal protection for enhanced reliability

Applications

• Mobile phones
• MP3 players

Procurement Notes

Verify current availability status as the NCP2811ADTBR2G is listed as obsolete in distributor records. Confirm if alternative revisions or replacement components are available through authorized channels. Ensure compliance with RoHS3 specifications and check for any product change notices affecting material composition or manufacturing location before finalizing procurement plans.

Selection Notes

Select this component for low-power stereo audio amplification in portable devices requiring a single supply voltage between 2.7V and 5V. The 14-TSSOP package suits space-constrained designs. Consider the obsolete status when planning long-term production runs; evaluate equivalent active parts if sustained supply is required. Verify that the 110mW output capability meets the specific impedance and volume requirements of the target application.

Part Context

The NCP2811 belongs to onsemi's NOCAP series of audio amplifiers, designed for mobile and portable consumer electronics. This specific model variant utilizes a TSSOP-14 package and is engineered for efficiency in battery-powered systems. It serves as a compact solution for driving headphones or small speakers in devices where power consumption and physical footprint are critical design constraints.

Replacement Considerations

Check for direct pin-compatible replacements within the same family or newer generations. Consult manufacturer documentation for updated part numbers that may have superseded the obsolete NCP2811ADTBR2G. Evaluate functional equivalents from other manufacturers if onsemi no longer supplies this specific revision.