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TDA8542AT from PHILIPS

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TDA8542AT

Manufacturer: PHILIPS, PHI

2 x 1.5 W BTL audio amplifier

Partnumber Manufacturer Quantity Availability
TDA8542AT PHILIPS, PHI 1933 In Stock

Description and Introduction

2 x 1.5 W BTL audio amplifier The TDA8542AT is a dual-channel audio power amplifier manufactured by NXP Semiconductors.  

### **Specifications:**  
- **Supply Voltage (VCC):** 4.5V to 18V  
- **Output Power:** 1.1W per channel (at 12V, 8Ω, THD = 10%)  
- **Load Impedance:** 4Ω to 16Ω  
- **Total Harmonic Distortion (THD):** 0.1% (typical at 1W, 8Ω)  
- **Signal-to-Noise Ratio (SNR):** 80dB (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SO8 (Small Outline 8-pin)  

### **Descriptions and Features:**  
- **Dual-Channel Amplifier:** Designed for stereo audio applications.  
- **Low Standby Current:** Typically 0.1µA in mute mode.  
- **Thermal Protection:** Built-in to prevent overheating.  
- **Short-Circuit Protection:** Safeguards the amplifier from output shorts.  
- **Mute Function:** Allows for power-saving and noise reduction.  
- **Wide Supply Voltage Range:** Suitable for battery-powered and automotive applications.  
- **Low External Component Count:** Simplifies circuit design.  

This amplifier is commonly used in portable audio devices, car radios, and other consumer electronics requiring compact and efficient stereo amplification.

Application Scenarios & Design Considerations

2 x 1.5 W BTL audio amplifier

Alternative Part Number

  • LM4863 --: Dual 1.1W audio power amplifier in a similar bridge-tied-load configuration, widely available and pin-compatible in function for many speaker driver designs.
  • TDA2822M --: Classic dual low-voltage audio power amplifier with comparable output power and supply range, commonly used as a drop-in substitute in similar applications.
  • PAM8403 --: Dual 3W class-D audio amplifier offering higher efficiency and similar supply voltage range, suitable modern replacement when layout allows class-D switching.
  • TDA7266 --: Dual audio power amplifier from a different series with comparable output power and supply voltage, usable as an alternative with minor circuit adjustments.

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