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TDA2040V from ST,ST Microelectronics

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TDA2040V

Manufacturer: ST, ST,ST, STM

20W Hi-Fi audio power amplifier

Partnumber Manufacturer Quantity Availability
TDA2040V ST, ST,ST, STM 20029 In Stock

Description and Introduction

20W Hi-Fi audio power amplifier The TDA2040V is a monolithic integrated circuit manufactured by STMicroelectronics (ST). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Type:** Audio Power Amplifier  
- **Output Power:** 20W (into 4Ω at ±16V, THD = 0.5%)  
- **Supply Voltage Range:** ±2.5V to ±20V  
- **Operating Supply Voltage:** Typically ±4V to ±18V  
- **Quiescent Current:** 30–60mA  
- **Total Harmonic Distortion (THD):** 0.03% (typical at 1W, 1kHz)  
- **Frequency Response:** 20Hz–20kHz  
- **Load Impedance:** 4Ω (minimum)  
- **Gain:** 30dB (fixed)  
- **Package:** Multiwatt11V (Vertical)  

### **Descriptions:**
- The TDA2040V is a class AB audio amplifier designed for high-fidelity applications.  
- It features short-circuit protection, thermal shutdown, and a mute function.  
- Suitable for use in stereo systems, TV sound amplifiers, and other audio applications.  

### **Features:**
- **High Output Power:** Up to 20W.  
- **Low Distortion:** Ensures high-quality audio output.  
- **Wide Supply Voltage Range:** Allows flexibility in power supply design.  
- **Thermal Protection:** Prevents damage from overheating.  
- **Short-Circuit Protection:** Safeguards the amplifier and connected components.  
- **Mute Function:** Enables muting of the audio output when needed.  

This information is based on the manufacturer's datasheet for the TDA2040V.

Application Scenarios & Design Considerations

20W Hi-Fi audio power amplifier

Alternative Part Number

  • LM1875T --: Audio power amplifier in the same 20W class with similar supply range and pin-compatible TO-220 package, widely used as a direct substitute for TDA2040.
  • TDA2050 --: Higher-power sibling in the same TDA20xx family with identical pinout and application circuit, offering more output headroom while remaining a drop-in upgrade.
  • LM3875TF --: Overture-series audio amplifier with comparable power and thermal performance, suitable when a different package and slightly higher supply voltage are acceptable.
  • LM675T --: Power operational amplifier in TO-220 that can serve as an audio amplifier replacement with similar voltage and current ratings.

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