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TS4990IJT from ST,ST Microelectronics

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TS4990IJT

Manufacturer: ST, STM

1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE

Partnumber Manufacturer Quantity Availability
TS4990IJT ST, STM 10305 In Stock

Description and Introduction

1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE The TS4990IJT is a mono differential class D audio amplifier manufactured by STMicroelectronics (ST).  

### **Specifications:**  
- **Output Power:** 3.2W into 4Ω at 5V (THD+N = 10%)  
- **Supply Voltage Range:** 2.5V to 5.5V  
- **Efficiency:** Up to 90%  
- **Signal-to-Noise Ratio (SNR):** >100dB (A-weighted)  
- **Total Harmonic Distortion + Noise (THD+N):** <0.1% (1W into 4Ω)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** MiniSO-8  

### **Descriptions:**  
The TS4990IJT is a high-efficiency class D audio amplifier designed for portable applications. It features a differential input to reduce noise and improve audio quality. The device includes a low-power shutdown mode and requires minimal external components.  

### **Features:**  
- Differential inputs for noise rejection  
- No output filter required (filterless operation)  
- Short-circuit and thermal protection  
- Pop & click suppression  
- Low quiescent current (4mA typical)  
- Small PCB footprint  

This information is sourced from STMicroelectronics' official documentation.

Application Scenarios & Design Considerations

1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE

Alternative Part Number

  • LM4990MM --: Pin-compatible 1.5W audio power amplifier in the same small package class, widely available and functionally equivalent to the TS4990.
  • PAM8302AAS --: Class-D audio amplifier with comparable output power and supply range, suitable drop-in for low-power speaker driver applications.
  • MAX98306ETD+ --: Low-voltage audio amplifier offering similar gain and output capability, usable as an alternative with minor layout adjustments.
  • MAX9710EUA --: 1.4W stereo/audio amplifier with similar supply voltage and shutdown features, usable as an alternative with minor layout adjustments.

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