MAX9719DEBE+TG45

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High efficiency, low distortion, compact size
• Package: 24-pin TQFN package
• Essence: Power audio amplifier
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 28V
• Output Power: 2.8W per channel into 4Ω load at 10% THD+N
• Efficiency: Up to 87%
• Total Harmonic Distortion + Noise (THD+N): 0.03% at 1kHz, 1.2W, 4Ω load
• Shutdown Current: <1µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9719DEBE+TG45 has a total of 24 pins. The pin configuration is as follows:

1. INL-: Negative input for left channel
2. INL+: Positive input for left channel
3. GND: Ground
4. BYP: Bypass capacitor connection
5. VDD: Positive supply voltage
6. PVDD: Power supply for the output stage
7. OUTL: Left channel output
8. FB: Feedback pin
9. SHDN: Shutdown control input
10. PGND: Power ground
11. INR-: Negative input for right channel
12. INR+: Positive input for right channel
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection
17. NC: No connection
18. NC: No connection
19. NC: No connection
20. NC: No connection
21. NC: No connection
22. NC: No connection
23. NC: No connection
24. NC: No connection

Functional Features

• High efficiency audio amplifier with low distortion
• Single-supply operation from 4.5V to 28V
• Shutdown control for power saving
• Thermal and short-circuit protection
• Internal click-and-pop suppression during power-up and shutdown

Advantages and Disadvantages

Advantages: - High efficiency results in less power consumption - Compact size allows for space-saving designs - Low distortion provides high-quality audio output - Shutdown control helps conserve power when not in use

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for proper operation

Working Principles

The MAX9719DEBE+TG45 is a class D audio amplifier that utilizes pulse-width modulation (PWM) to amplify the audio signal. It operates by rapidly switching the output stage transistors on and off, resulting in efficient power conversion. The input audio signal is converted into a series of pulses with varying widths, which are then amplified and filtered to produce the final audio output.

Detailed Application Field Plans

The MAX9719DEBE+TG45 is commonly used in various audio applications, including:

1. Portable speakers
2. Headphone amplifiers
3. Automotive audio systems
4. Home theater systems
5. Multimedia devices

Detailed and Complete Alternative Models

1. TPA3116D2: Class D audio amplifier with similar specifications and features.
2. LM3886: Class AB audio amplifier with higher output power.
3. TAS5611A: Class D audio amplifier with advanced digital audio processing capabilities.

These alternative models offer different options based on specific requirements and design considerations.

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