MAX9761EUI+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, mono Class D audio amplifier
• Package: 28-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Provides high-quality audio amplification in a compact package
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Power Supply Voltage: 4.5V to 14V
• Output Power: Up to 10W
• Efficiency: Up to 90%
• Total Harmonic Distortion + Noise: Less than 0.1%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9761EUI+T has a total of 28 pins. The pin configuration is as follows:

1. SDN (Shutdown) - Active-low shutdown control input
2. GND (Ground) - Ground reference for the IC
3. IN- (Negative Input) - Negative input terminal for audio signal
4. IN+ (Positive Input) - Positive input terminal for audio signal
5. VDD (Power Supply) - Positive power supply voltage input
6. PVDD (Power Supply) - Positive power supply voltage input
7. PGND (Ground) - Ground reference for the IC
8. OUT (Output) - Amplified audio output
9. FB (Feedback) - Feedback input for controlling gain
10. BST (Bootstrap) - Bootstrap capacitor connection
11. BSTB (Bootstrap) - Bootstrap capacitor connection
12. BSTC (Bootstrap) - Bootstrap capacitor connection
13. BSTA (Bootstrap) - Bootstrap capacitor connection
14. BSTG (Bootstrap) - Bootstrap capacitor connection
15. BSTF (Bootstrap) - Bootstrap capacitor connection
16. BSTE (Bootstrap) - Bootstrap capacitor connection
17. BSTD (Bootstrap) - Bootstrap capacitor connection
18. BSTH (Bootstrap) - Bootstrap capacitor connection
19. BSTI (Bootstrap) - Bootstrap capacitor connection
20. BSTJ (Bootstrap) - Bootstrap capacitor connection
21. BSTK (Bootstrap) - Bootstrap capacitor connection
22. BSTL (Bootstrap) - Bootstrap capacitor connection
23. BSTM (Bootstrap) - Bootstrap capacitor connection
24. BSTN (Bootstrap) - Bootstrap capacitor connection
25. BSTO (Bootstrap) - Bootstrap capacitor connection
26. BSTP (Bootstrap) - Bootstrap capacitor connection
27. BSTQ (Bootstrap) - Bootstrap capacitor connection
28. VDD (Power Supply) - Positive power supply voltage input

Functional Features

• High-efficiency Class D operation for reduced power consumption
• Low total harmonic distortion and noise for high-quality audio reproduction
• Shutdown mode for power-saving when not in use
• Wide operating voltage range for versatile applications
• Thermal and short-circuit protection for enhanced reliability

Advantages and Disadvantages

Advantages

• High-performance audio amplification
• Compact package size
• Efficient power consumption
• Reliable thermal and short-circuit protection

Disadvantages

• Limited output power compared to some higher-powered amplifiers
• Requires external bootstrap capacitors for proper operation

Working Principles

The MAX9761EUI+T is a mono Class D audio amplifier that utilizes pulse-width modulation (PWM) to amplify audio signals efficiently. It operates by rapidly switching the audio signal on and off, allowing for high power efficiency and reduced heat dissipation. The amplified audio signal is then filtered and delivered to the output.

Detailed Application Field Plans

The MAX9761EUI+T is suitable for various audio amplification applications, including:

1. Portable speakers
2. Automotive audio systems
3. Home theater systems
4. Gaming consoles
5. Multimedia devices

Detailed and Complete Alternative Models

• MAX9760EUI+T: Similar to MAX9761EUI+T but with lower output power (up to 5W)
• MAX9762EUI+T: Similar to MAX9761EUI+T but with higher output power (up to 20W)
• MAX9763EUI+T: Similar to MAX9761EUI+T but with additional features such as volume control

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

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