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STA508 from ST,ST Microelectronics

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STA508

Manufacturer: ST, STM

40V 4.5A QUAD POWER HALF BRIDGE

Partnumber Manufacturer Quantity Availability
STA508 ST, STM 16210 In Stock

Description and Introduction

40V 4.5A QUAD POWER HALF BRIDGE The STA508 is a digital audio power amplifier from STMicroelectronics (STM). Here are the key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Output Power:** Up to 45W per channel (4Ω, 10% THD+N) or 28W per channel (8Ω, 10% THD+N).  
- **Supply Voltage Range:** ±12V to ±30V (dual supply).  
- **Efficiency:** Up to 90% (Class D operation).  
- **Signal-to-Noise Ratio (SNR):** >100dB (A-weighted).  
- **Total Harmonic Distortion + Noise (THD+N):** <0.05% (1W, 8Ω).  
- **Operating Temperature Range:** -40°C to +85°C.  
- **Package:** PowerSSO-36 (exposed pad for thermal dissipation).  

### **Descriptions:**
- The STA508 is a **Class D amplifier** designed for high-efficiency audio applications.  
- It integrates a **PWM modulator**, **gate drivers**, and **MOSFET output stage** for compact design.  
- Supports **stereo (2-channel) or mono (bridged) operation**.  
- Includes **protection features** like overcurrent, overtemperature, and undervoltage lockout.  

### **Features:**
- **High Efficiency:** Reduces power dissipation and heat generation.  
- **Low EMI:** Optimized for minimal electromagnetic interference.  
- **Standby Mode:** Low-power consumption when idle.  
- **Pop & Click Suppression:** Minimizes noise during power-on/off.  
- **Flexible Input:** Accepts analog audio signals (PWM input not required).  

This information is strictly factual from the manufacturer's datasheet. Let me know if you need further details.

Application Scenarios & Design Considerations

40V 4.5A QUAD POWER HALF BRIDGE

Alternative Part Number

  • TDA7498 --: Same manufacturer and similar class-D audio amplifier family with comparable output power and supply voltage range, often used as a drop-in substitute in audio applications.
  • TAS5614LA --: Class-D audio amplifier with comparable power output and supply voltage, suitable alternative from a different vendor with well-documented reference designs.
  • TPA3116D2 --: Popular class-D audio amplifier offering similar output power levels and supply range, widely available and commonly used as a cross-vendor replacement.
  • TDA8954TH --: Class-D audio amplifier in the same power class with comparable supply voltage range and output power, suitable as a functional substitute in audio amplifier designs.
  • TAS5630B --: High-power Class-D amplifier IC with similar output capability and analog input architecture, usable as an alternative with minor circuit redesign.
  • LM4651 --: Class-D audio power amplifier controller/driver offering comparable switching amplifier functionality for similar audio power stages.

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