NCP2890DMR2G

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High efficiency - Low power consumption - Small form factor - Wide operating voltage range

Package: DFN-8 (Dual Flat No-Lead)

Essence: The NCP2890DMR2G is a high-efficiency audio amplifier IC designed for portable electronic devices.

Packaging/Quantity: The NCP2890DMR2G is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 2.5V to 5.5V
• Output Power: Up to 1.2W
• Efficiency: Up to 90%
• Total Harmonic Distortion (THD): <1%
• Shutdown Current: <1µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The NCP2890DMR2G has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. SD: Shutdown control input
4. IN+: Positive audio input
5. IN-: Negative audio input
6. OUT: Amplified audio output
7. Bypass: Bypass capacitor connection
8. BYP_GND: Bypass capacitor ground reference

Functional Features

• Class AB amplifier architecture
• Short-circuit and thermal protection
• Pop and click noise suppression during power-on/off transitions
• Low quiescent current in shutdown mode
• Internal gain setting resistor

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life in portable devices - Small form factor allows for compact designs - Wide operating voltage range enables compatibility with various power sources - Pop and click noise suppression enhances audio quality

Disadvantages: - Limited output power compared to higher wattage amplifiers - May require additional external components for specific applications

Working Principles

The NCP2890DMR2G is a class AB audio amplifier that utilizes a bridge-tied load (BTL) configuration. It amplifies the audio signal received at the input pins and delivers it to the output pin with high efficiency. The internal gain setting resistor allows for easy adjustment of the amplification level.

Detailed Application Field Plans

The NCP2890DMR2G is commonly used in various portable electronic devices, including:

1. Smartphones and tablets
2. Portable media players
3. Bluetooth speakers
4. Gaming consoles
5. Wearable devices

Its small form factor, low power consumption, and high efficiency make it ideal for these applications, where space and battery life are crucial factors.

Detailed and Complete Alternative Models

1. TPA3116D2: A higher wattage audio amplifier IC suitable for home audio systems.
2. LM386: A low-cost audio amplifier IC commonly used in hobbyist projects.
3. MAX98357A: An audio amplifier IC with integrated digital-to-analog converter (DAC) for enhanced audio quality.

These alternative models offer different features and specifications, catering to various application requirements.

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