NCV2890DMR2G

Overview

The NCV2890DMR2G is a 1.0 W audio power amplifier in a Micro8 package, designed for portable communication devices. It delivers 1.0 W to an 8 Ω BTL load at 5.0 V and 320 mW to a 4 Ω BTL load at 2.6 V. Operating from 2.2 V to 5.5 V, it features excellent PSRR for direct battery connection, pop-and-click noise protection, and ultra-low current shutdown mode.

Feature Summary

• Delivers high-quality audio with minimal external components and low power consumption
• Includes circuitry to prevent pop and click noise during turn-on and turn-off transitions
• Offers externally controlled gain and turn-on time configuration capabilities
• Features thermal overload protection and up to 1.0 nF capacitive load driving capability

Applications

• Portable electronic devices
• Personal digital assistants (PDAs)
• Wireless phones

Procurement Notes

Verify the component matches the specific NCV2890DMR2G designation, noting the DM suffix indicates the Micro8 package and the G suffix confirms lead-free construction. Confirm the NCV prefix aligns with automotive or site-controlled application requirements as defined by onsemi standards. Ensure compatibility with the intended PCB assembly process for lead-free solder bumps.

Selection Notes

Select this device when a compact, single-supply audio solution is required for battery-operated systems. The Micro8 package offers space efficiency compared to larger alternatives. Consider the external gain setting resistors and bypass capacitor requirements for optimizing turn-on characteristics and minimizing distortion in the final design.

Part Context

This part belongs to the NCP2890 family of 1.0 W audio power amplifiers. The NCV prefix specifically denotes a version qualified for automotive and other applications requiring site and control changes. It shares core functionality with the standard NCP2890 but adheres to stricter manufacturing controls.

Replacement Considerations

NCP2890DMR2G is the non-automotive equivalent with identical electrical specifications and pinout.

FAQ

How does the device handle turn-on and turn-off transitions?

The NCV2890DMR2G contains internal circuitry to prevent pop and click noises. It slowly establishes or cuts output power during transitions, with the turn-on time determined by the external bypass capacitor.

What is the purpose of the SHUTDOWN pin?

Driving the SHUTDOWN pin with a logic low signal places the device into an ultra-low current shutdown mode, significantly reducing power consumption.