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TDA7491P13TR from ST,ST Microelectronics

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TDA7491P13TR

Manufacturer: ST, STMicroelectronics

10W+10W dual BTL class-D audio amplifier

Partnumber Manufacturer Quantity Availability
TDA7491P13TR ST, STMicroelectronics 1237 In Stock

Description and Introduction

10W+10W dual BTL class-D audio amplifier The TDA7491P13TR is a Class-D audio amplifier manufactured by STMicroelectronics. Below are its specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Output Power:** 10W per channel (at 10% THD, 8Ω load, 15V supply)  
- **Supply Voltage Range:** 8V to 18V  
- **Operating Voltage:** Typically 15V  
- **Total Harmonic Distortion (THD):** <1% (at 1W, 8Ω, 1kHz)  
- **Signal-to-Noise Ratio (SNR):** >90dB  
- **Efficiency:** Up to 90% (Class-D operation)  
- **Standby Current:** <1µA  
- **Package:** PowerSO-20 (Exposed Pad)  

### **Descriptions:**  
- The TDA7491P13TR is a dual BTL (Bridge-Tied Load) Class-D audio amplifier designed for high-efficiency audio applications.  
- It operates in a single-supply configuration and is optimized for low EMI emissions.  
- Features built-in protection circuits, including thermal shutdown and short-circuit protection.  

### **Features:**  
- **Dual-Channel BTL Output:** Supports stereo or mono configurations.  
- **Mute Function:** Allows muting the audio output.  
- **Standby Mode:** Ultra-low power consumption when inactive.  
- **No External Schottky Diodes Required:** Simplified design.  
- **Low External Component Count:** Reduces PCB space and cost.  
- **Thermal Protection:** Prevents overheating damage.  
- **Short-Circuit Protection:** Safeguards against output faults.  

This information is strictly based on STMicroelectronics' official documentation for the TDA7491P13TR.

Application Scenarios & Design Considerations

10W+10W dual BTL class-D audio amplifier

Alternative Part Number

  • TDA7492P13TR --: Same TDA749x class-D audio amplifier family with higher output power and identical package/pinout style, making it a strong drop-in upgrade.
  • TDA7491MV --: Closely related ST class-D amplifier with similar supply range and output capability, suitable when slightly different package/thermal layout is acceptable.
  • TPA3116D2DADR --: Popular class-D audio amplifier from a different vendor with comparable power and supply requirements, usable as a cross-vendor alternative with minor layout changes.
  • TDA7491LP --: Same TDA7491 family audio amplifier with comparable output power and pinout, drop-in compatible in most Class D amplifier designs.
  • TDA7492P --: Higher-power sibling in the same Class D amplifier family with similar control interface and supply requirements, usable with minor thermal considerations.
  • TPA3116D2 --: Widely available Class D audio amplifier with comparable power range and analog input, suitable functional replacement with layout adjustments.

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