MAX9718CEBL+TG45

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High Efficiency, Low Noise, Small Package Size
• Package: CEBL+TG45
• Essence: Power Amplification
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 28V
• Output Power: 2.8W at 5V, 10% THD+N, 4Ω Load
• Efficiency: 87% at 5V, 1.6W, 4Ω Load
• Quiescent Current: 3.5mA
• Shutdown Current: <1µA
• Total Harmonic Distortion + Noise (THD+N): 0.06% at 1kHz, 1.6W, 4Ω Load
• Signal-to-Noise Ratio (SNR): 95dB at 1kHz, 1.6W, 4Ω Load
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX9718CEBL+TG45 has a total of 20 pins. The pin configuration is as follows:

1. SHDN - Shutdown Input
2. GND - Ground
3. IN+ - Positive Differential Input
4. IN- - Negative Differential Input
5. BYP - Bypass Capacitor Connection
6. VDD - Positive Power Supply
7. OUT - Speaker Output
8. FB - Feedback Input
9. GND - Ground
10. GND - Ground
11. GND - Ground
12. GND - Ground
13. GND - Ground
14. GND - Ground
15. GND - Ground
16. GND - Ground
17. GND - Ground
18. GND - Ground
19. GND - Ground
20. GND - Ground

Functional Features

• High Efficiency: The MAX9718CEBL+TG45 offers an efficiency of 87%, ensuring minimal power wastage.
• Low Noise: With a signal-to-noise ratio of 95dB, the amplifier provides clear and high-quality audio output.
• Small Package Size: The CEBL+TG45 package allows for compact designs, making it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Low noise ensures excellent audio quality. - Small package size enables integration in compact devices.

Disadvantages: - Limited output power compared to higher wattage amplifiers. - Requires an external bypass capacitor for optimal performance.

Working Principles

The MAX9718CEBL+TG45 is a class D audio amplifier that utilizes pulse-width modulation (PWM) techniques to amplify audio signals efficiently. It operates by rapidly switching the input signal on and off, resulting in a square wave output. This square wave is then filtered to remove unwanted harmonics and provide a clean audio signal.

Detailed Application Field Plans

The MAX9718CEBL+TG45 is commonly used in various audio applications, including:

1. Portable Speakers: Its small package size and high efficiency make it ideal for battery-powered portable speakers.
2. Headphone Amplifiers: The low noise and compact design make it suitable for driving headphones.
3. Automotive Audio Systems: The wide operating temperature range allows for use in automotive environments.
4. Home Theater Systems: The high efficiency helps reduce power consumption in home theater setups.

Detailed and Complete Alternative Models

1. MAX9717CEBL+TG45: Similar to MAX9718CEBL+TG45, but with a lower output power of 1.4W at 5V, 10% THD+N, 4Ω Load.
2. MAX9719CEBL+TG45: Similar to MAX9718CEBL+TG45, but with a higher output power of 3.7W at 5V, 10% THD+N, 4Ω Load.

These alternative models offer different output power levels to cater to specific application requirements.

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