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TPA731DRG4 from TI,Texas Instruments

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TPA731DRG4

Manufacturer: TI

700-mW Mono, Differential Input, Class-AB Audio Amplifier with Active High Shutdown 8-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
TPA731DRG4 TI 2530 In Stock

Description and Introduction

700-mW Mono, Differential Input, Class-AB Audio Amplifier with Active High Shutdown 8-SOIC -40 to 85 The TPA731DRG4 is a 3-W mono fully differential audio power amplifier manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Output Power:** 3 W into 4 Ω at 5 V  
- **Supply Voltage Range:** 2.5 V to 5.5 V  
- **Quiescent Current:** 2.3 mA (typical)  
- **Shutdown Current:** 0.01 μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical at 1 W, 4 Ω, 5 V)  
- **PSRR (Power Supply Rejection Ratio):** 70 dB (typical at 217 Hz)  
- **Gain:** Fixed at 6 dB  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (DRG4)  

### **Descriptions:**  
The TPA731DRG4 is a low-power, high-efficiency mono audio amplifier designed for portable applications. It features a fully differential architecture, reducing noise and improving audio quality. The device includes a shutdown mode for power savings and operates from a single supply voltage.  

### **Features:**  
- Fully differential inputs and outputs  
- No output coupling capacitors required  
- Improved PSRR for noise reduction  
- Thermal and short-circuit protection  
- Low shutdown current for battery-powered applications  
- Pop-and-click suppression circuitry  

This amplifier is commonly used in smartphones, portable media players, and other battery-operated audio devices.

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