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TDA7374 from ST,ST Microelectronics

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TDA7374

Manufacturer: ST

DUAL BRIDGE AUDIO AMPLIFIER FOR CAR RADIO

Partnumber Manufacturer Quantity Availability
TDA7374 ST 661 In Stock

Description and Introduction

DUAL BRIDGE AUDIO AMPLIFIER FOR CAR RADIO The TDA7374 is a quad bridge car radio amplifier manufactured by STMicroelectronics. Here are its specifications, descriptions, and features:

### **Specifications:**
- **Power Supply Voltage (Vs):** 8V to 18V  
- **Output Power (Po):**  
  - 4 x 6W (max) @ 14.4V, 4Ω, 10% THD  
  - 4 x 4W (typ) @ 14.4V, 4Ω, 1% THD  
- **Operating Temperature Range:** -40°C to +105°C  
- **Standby Current (Iq):** < 100µA  
- **Total Harmonic Distortion (THD):** 0.1% (typ) @ 1W, 1kHz  
- **Signal-to-Noise Ratio (SNR):** 90dB (typ)  

### **Descriptions:**
- The TDA7374 is a monolithic integrated circuit designed for car radio applications.  
- It features four independent bridge amplifiers, making it suitable for 4-channel audio systems.  
- The device includes protection circuits against short circuits, thermal overload, and overvoltage.  
- It operates in a single power supply configuration, simplifying system design.  

### **Features:**
- **Quad Bridge Amplifier:** Four independent BTL (Bridge-Tied Load) outputs.  
- **Low Standby Current:** Enables energy-efficient operation.  
- **Mute & Standby Functions:** Allows power-saving modes.  
- **Short-Circuit Protection:** Safeguards the amplifier and speakers.  
- **Thermal Shutdown:** Prevents damage from overheating.  
- **Minimal External Components:** Reduces PCB footprint and cost.  
- **High Output Power Capability:** Suitable for car audio applications.  

The TDA7374 is commonly used in automotive audio systems due to its robustness and performance.

Application Scenarios & Design Considerations

DUAL BRIDGE AUDIO AMPLIFIER FOR CAR RADIO

Alternative Part Number

  • LM1875T --: Single-channel audio power amplifier with comparable supply range and output power, widely used as a drop-in substitute in audio amplifier designs.
  • TDA7265 --: Dual audio power amplifier from a different ST series with similar supply voltage and output power, suitable for stereo audio applications.
  • TDA7297 --: Dual bridge audio amplifier offering similar output power and supply requirements, commonly used as an alternative in low-to-medium power audio systems.
  • TDA7375 --: Same ST dual/quad audio power amplifier family with higher output power and nearly identical pinout, making it a strong drop-in upgrade.
  • TDA7377 --: ST quad-bridge car audio amplifier in the same TDA737x series with compatible supply range and similar application circuit.
  • TDA7384 --: ST quad audio power amplifier with comparable supply voltage and output capability, suitable as a functional substitute in car radio designs.

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