LM4919MM/NOPB

Product Overview

Use

It is used for amplifying audio signals in various electronic devices such as smartphones, tablets, and portable media players.

Characteristics

High-quality audio amplification
Low power consumption
Small form factor
Integrated volume control

Package

The LM4919MM/NOPB comes in a miniature 10-pin MSOP package.

Essence

The essence of LM4919MM/NOPB lies in its ability to provide high-fidelity audio amplification in a compact and efficient package.

Packaging/Quantity

The LM4919MM/NOPB is typically available in reels with a quantity of 2500 units per reel.

Specifications

Power Supply Voltage: 2.7V to 5.5V
Output Power: 1.1W at 3.6V, 10% THD+N, 8Ω Load
Shutdown Current: 0.01μA (Typical)
Signal-to-Noise Ratio (SNR): 95dB (Typical)

Detailed Pin Configuration

SHDN (Pin 1) - Shutdown Pin
INP (Pin 2) - Non-Inverting Input
INN (Pin 3) - Inverting Input
VDD (Pin 4) - Power Supply Voltage
GND (Pin 5) - Ground
BYP (Pin 6) - Bypass Capacitor Connection
OUT (Pin 7) - Amplifier Output
VREF (Pin 8) - Reference Voltage
VOLUME (Pin 9) - Volume Control
VDD (Pin 10) - Power Supply Voltage

Functional Features

Integrated shutdown control
Low-power consumption
Thermal shutdown protection
Short-circuit and overvoltage protection

Advantages and Disadvantages

Advantages

Compact size
High-quality audio amplification
Low power consumption

Disadvantages

Limited output power compared to larger amplifiers
Limited voltage range

Working Principles

The LM4919MM/NOPB operates as a class AB audio amplifier, utilizing a bridge-tied load (BTL) configuration to efficiently drive speakers or headphones. It incorporates internal gain settings and volume control to provide a complete audio amplification solution.

Detailed Application Field Plans

The LM4919MM/NOPB is well-suited for use in portable electronic devices such as smartphones, tablets, portable media players, and Bluetooth speakers. Its low power consumption and small form factor make it ideal for battery-powered applications where space and energy efficiency are critical.

Detailed and Complete Alternative Models

TPA2012D2 from Texas Instruments
MAX98306 from Maxim Integrated
PAM8403 from Diodes Incorporated

This completes the English editing encyclopedia entry structure format for LM4919MM/NOPB.

Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan LM4919MM/NOPB dalam solusi teknis

What is the LM4919MM/NOPB?
- The LM4919MM/NOPB is a mono, bridged audio power amplifier designed for use in portable electronic devices.
What is the typical application of the LM4919MM/NOPB?
- The LM4919MM/NOPB is commonly used in mobile phones, PDAs, and other portable communication devices to drive the speaker or earpiece.
What is the maximum output power of the LM4919MM/NOPB?
- The LM4919MM/NOPB can deliver up to 1.1W of continuous average power into an 8Ω load.
What is the supply voltage range for the LM4919MM/NOPB?
- The LM4919MM/NOPB operates from a single 2.7V to 5.5V supply.
Does the LM4919MM/NOPB require external compensation?
- No, the LM4919MM/NOPB does not require external compensation, which simplifies design and reduces component count.
What protection features does the LM4919MM/NOPB have?
- The LM4919MM/NOPB includes thermal shutdown and output short-circuit protection.
Can the LM4919MM/NOPB be used in battery-powered applications?
- Yes, the LM4919MM/NOPB's low supply current and wide supply voltage range make it suitable for battery-powered applications.
What is the typical efficiency of the LM4919MM/NOPB?
- The LM4919MM/NOPB has a typical efficiency of 85% at 300mW into an 8Ω load.
Is the LM4919MM/NOPB available in a small package for space-constrained designs?
- Yes, the LM4919MM/NOPB is available in a space-saving 8-pin MSOP package.
What are the key advantages of using the LM4919MM/NOPB in technical solutions?
- The LM4919MM/NOPB offers high efficiency, low supply current, small package size, and integrated protection features, making it ideal for portable audio applications.