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LM4860MX/NOPB

LM4860MX/NOPB

Product Overview

  • Category: Audio Amplifier
  • Use: The LM4860MX/NOPB is a versatile audio amplifier designed for use in portable electronic devices such as smartphones, tablets, and portable music players.
  • Characteristics: This audio amplifier is known for its high efficiency, low distortion, and low quiescent current, making it ideal for battery-powered applications. It comes in a miniature surface-mount package, making it suitable for compact designs.
  • Package: Surface-Mount (SMD)
  • Essence: The essence of the LM4860MX/NOPB lies in its ability to deliver high-quality audio amplification while consuming minimal power.
  • Packaging/Quantity: Available in reels of 2500 units.

Specifications

  • Power Supply Voltage: 2.7V to 5.5V
  • Output Power: 1W per channel into 8Ω at 5V
  • Total Harmonic Distortion (THD): 0.2% (typical) at 1kHz, 1W, 8Ω
  • Quiescent Current: 4mA (typical)
  • Shutdown Current: 0.6μA (typical)

Detailed Pin Configuration

The LM4860MX/NOPB features a standard 8-pin surface-mount package with the following pin configuration: 1. SHUTDOWN (SD): Shutdown control input 2. VDD: Positive power supply 3. IN- (Left Channel Input): Audio input for left channel 4. IN+ (Left Channel Input): Audio input for left channel 5. GND: Ground 6. OUT- (Left Channel Output): Audio output for left channel 7. OUT+ (Left Channel Output): Audio output for left channel 8. VSS: Negative power supply

Functional Features

  • Low Quiescent Current: Enables extended battery life in portable devices.
  • High Efficiency: Minimizes power consumption while delivering clear audio output.
  • Thermal Shutdown Protection: Safeguards the device from overheating.
  • Unity-Gain Stable: Allows for easy implementation in various audio systems.

Advantages and Disadvantages

Advantages

  • High efficiency
  • Low distortion
  • Small form factor
  • Thermal shutdown protection

Disadvantages

  • Limited output power compared to higher wattage amplifiers
  • Requires external components for full functionality

Working Principles

The LM4860MX/NOPB operates by amplifying the audio input signals and driving them through the connected speakers. It utilizes a low quiescent current design to minimize power consumption, making it suitable for battery-powered applications. The thermal shutdown protection ensures the device's safety under extreme operating conditions.

Detailed Application Field Plans

The LM4860MX/NOPB finds extensive application in portable electronic devices, including: - Smartphones - Tablets - Portable music players - Bluetooth speakers - Portable gaming devices

Detailed and Complete Alternative Models

  • LM4861: Higher output power version of LM4860MX/NOPB
  • LM4862: Dual-channel audio amplifier with similar characteristics
  • LM4881: Stereo Class D audio amplifier with integrated boost converter

In conclusion, the LM4860MX/NOPB is a highly efficient and compact audio amplifier suitable for various portable electronic devices. Its low power consumption and high-quality audio amplification make it an ideal choice for battery-powered applications.

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แสดงรายการคำถามและคำตอบทั่วไป 10 ข้อที่เกี่ยวข้องกับการใช้ LM4860MX/NOPB ในโซลูชันทางเทคนิค

  1. Question: What is the maximum power supply voltage for LM4860MX/NOPB?
    Answer: The maximum power supply voltage for LM4860MX/NOPB is 10V.

  2. Question: What is the typical output power of LM4860MX/NOPB?
    Answer: The typical output power of LM4860MX/NOPB is 325mW per channel into an 8Ω load.

  3. Question: Can LM4860MX/NOPB operate with a single power supply?
    Answer: Yes, LM4860MX/NOPB can operate with a single power supply ranging from 2.7V to 5.5V.

  4. Question: What is the recommended input signal range for LM4860MX/NOPB?
    Answer: The recommended input signal range for LM4860MX/NOPB is 0.2V to 1.8V.

  5. Question: Does LM4860MX/NOPB have built-in thermal shutdown protection?
    Answer: Yes, LM4860MX/NOPB has built-in thermal shutdown protection to prevent overheating.

  6. Question: What is the typical quiescent power supply current of LM4860MX/NOPB?
    Answer: The typical quiescent power supply current of LM4860MX/NOPB is 2.5mA.

  7. Question: Can LM4860MX/NOPB be used in portable audio applications?
    Answer: Yes, LM4860MX/NOPB is suitable for use in portable audio applications due to its low power consumption and small package size.

  8. Question: What is the recommended output load impedance for LM4860MX/NOPB?
    Answer: The recommended output load impedance for LM4860MX/NOPB is 8Ω.

  9. Question: Does LM4860MX/NOPB require external compensation components?
    Answer: No, LM4860MX/NOPB does not require external compensation components, simplifying the design process.

  10. Question: Is LM4860MX/NOPB suitable for driving headphones?
    Answer: Yes, LM4860MX/NOPB can be used to drive headphones with appropriate impedance matching.