LM4893MA/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - Small size and low power consumption - High audio quality with minimal distortion - Wide voltage range for compatibility with various devices - Designed for portable electronic devices

Package: SOP (Small Outline Package)

Essence: The LM4893MA/NOPB is a high-performance audio amplifier IC designed to enhance the audio output of portable electronic devices.

Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 1.1W (typical) into 8Ω at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical) at 1kHz, 1.1W, 8Ω
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4893MA/NOPB has a total of 16 pins, as follows:

1. VDD: Power supply voltage input
2. SHUTDOWN: Shutdown control pin
3. BYPASS: Bypass capacitor connection pin
4. GAIN: Gain selection pin
5. IN-: Negative input pin
6. IN+: Positive input pin
7. GND: Ground pin
8. OUT: Speaker output pin
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Low quiescent current consumption
• Short-circuit and thermal protection
• Pop and click suppression during power-up and shutdown
• External gain configuration for flexibility
• Wide supply voltage range for compatibility with various devices

Advantages and Disadvantages

Advantages: - High audio quality with minimal distortion - Small size and low power consumption - Wide voltage range for compatibility - Protection features for enhanced durability

Disadvantages: - Limited output power compared to larger amplifiers - Not suitable for high-power audio applications

Working Principles

The LM4893MA/NOPB is a class AB audio amplifier that amplifies the input audio signal and drives the connected speaker. It operates by receiving an audio input signal through the IN+ and IN- pins, which is then amplified and delivered to the speaker through the OUT pin. The gain of the amplifier can be externally configured using the GAIN pin.

Detailed Application Field Plans

The LM4893MA/NOPB is widely used in various portable electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Bluetooth speakers - Gaming consoles

Detailed and Complete Alternative Models

1. LM4863MA/NOPB
2. LM4889MA/NOPB
3. LM4950MA/NOPB
4. LM4970MA/NOPB
5. LM4990MA/NOPB

These alternative models offer similar functionality and characteristics to the LM4893MA/NOPB and can be considered as alternatives based on specific requirements and application needs.

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