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TS4985EIJT from ST,ST Microelectronics

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TS4985EIJT

Manufacturer: ST

2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins

Partnumber Manufacturer Quantity Availability
TS4985EIJT ST 24450 In Stock

Description and Introduction

2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins The TS4985EIJT is a mono Class D audio amplifier from STMicroelectronics. Here are its specifications, descriptions, and features:

### **Specifications:**
- **Output Power:**  
  - 3.2W into 4Ω at 5V (THD+N = 10%)  
  - 2.1W into 8Ω at 5V (THD+N = 10%)  
- **Supply Voltage Range:** 2.5V to 5.5V  
- **Efficiency:** Up to 90% (Class D operation)  
- **THD+N:** < 0.3% (1W into 4Ω)  
- **Signal-to-Noise Ratio (SNR):** > 90dB  
- **Shutdown Current:** < 1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** MiniSO-8  

### **Description:**  
The TS4985EIJT is a high-efficiency, low-power Class D audio amplifier designed for portable applications. It features a differential input, low quiescent current, and thermal protection, making it suitable for battery-powered devices like smartphones, tablets, and portable speakers.

### **Features:**  
- **Class D Operation:** High efficiency with low power dissipation.  
- **Differential Input:** Reduces common-mode noise.  
- **Low Quiescent Current:** 3.5mA (typical) for extended battery life.  
- **Thermal Protection:** Prevents damage from overheating.  
- **Short-Circuit Protection:** Includes current limiting.  
- **Pop & Click Suppression:** Minimizes noise during power-up/down.  
- **Small Footprint:** MiniSO-8 package for space-constrained designs.  

For more details, refer to the official STMicroelectronics datasheet.

Application Scenarios & Design Considerations

2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins

Alternative Part Number

  • LM4985MM --: Similar dual audio power amplifier in a small package, pin-compatible function and comparable output power for portable audio applications.
  • MAX9722AEUE --: Low-voltage stereo headphone amplifier with similar supply range and output drive, suitable as a functional replacement in audio designs.
  • TPA6111A2DGN --: Dual 150 mW headphone amplifier with comparable gain and supply requirements, usable as an alternative audio amplifier.
  • LM4871M --: Audio power amplifier in the same class with comparable output power and supply range, widely available and pin-compatible in many designs.
  • PAM8403 --: Low-voltage class-D audio amplifier offering similar output power and efficiency, suitable as a functional substitute in portable audio designs.
  • TDA2822M --: Dual low-voltage audio power amplifier with similar supply voltage and output capability, commonly used as a drop-in alternative for small audio amplifiers.

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