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STA461 from SK

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STA461

Manufacturer: SK

Power Transistor Array

Partnumber Manufacturer Quantity Availability
STA461 SK 200 In Stock

Description and Introduction

Power Transistor Array The STA461 is a power amplifier IC manufactured by STMicroelectronics. Here are the key specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Output Power:** Up to 4 x 45W (4Ω, 14.4V, 10% THD+N) or 4 x 30W (4Ω, 14.4V, 1% THD+N).  
- **Supply Voltage Range:** 6V to 18V (operating range).  
- **Load Impedance:** Supports 2Ω to 8Ω speakers.  
- **Signal-to-Noise Ratio (SNR):** >100dB (A-weighted).  
- **Total Harmonic Distortion + Noise (THD+N):** <0.1% (typical at 1W, 4Ω).  
- **Efficiency:** Class AB amplifier with high efficiency.  
- **Package:** PowerSSO-36 (exposed pad for heat dissipation).  

### **Description:**  
The STA461 is a quad bridge power amplifier designed for automotive audio applications. It integrates four independent amplifier channels, making it suitable for multi-speaker systems. The IC features built-in protection circuits, including thermal shutdown, overvoltage, and short-circuit protection.

### **Features:**  
- **Quad Bridge Configuration:** Four independent amplifier channels.  
- **Standby Mode:** Low-power consumption when inactive.  
- **Mute Function:** Allows muting the audio output.  
- **Protection Circuits:** Includes thermal shutdown, overvoltage, and short-circuit protection.  
- **High Output Power:** Capable of driving high-power speakers efficiently.  
- **Wide Operating Voltage:** Supports typical automotive power supply conditions.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Power Transistor Array

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