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TS4861IST from ST,ST Microelectronics

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TS4861IST

Manufacturer: ST

STEREO HEADPHONE AMPLIFIER WITH STANDBY ACTIVE LOW

Partnumber Manufacturer Quantity Availability
TS4861IST ST 12099 In Stock

Description and Introduction

STEREO HEADPHONE AMPLIFIER WITH STANDBY ACTIVE LOW The TS4861IST is a low-power audio amplifier manufactured by STMicroelectronics.  

**Specifications:**  
- **Supply Voltage Range:** 2.2V to 5.5V  
- **Output Power:** 1.1W (into 4Ω at 5V)  
- **Quiescent Current:** 1.3mA (typical)  
- **Shutdown Current:** <1µA  
- **Total Harmonic Distortion (THD):** 0.1% (typical at 1kHz, 1W into 4Ω)  
- **Gain:** Fixed at 6dB  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** MiniSO-8  

**Descriptions:**  
The TS4861IST is a mono Class AB audio amplifier designed for portable applications. It features low power consumption, a shutdown mode, and requires minimal external components.  

**Features:**  
- Low quiescent current  
- Shutdown mode for power saving  
- No external components required (except input/output capacitors)  
- Short-circuit and thermal protection  
- Improved click & pop suppression  
- Space-saving MiniSO-8 package  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

STEREO HEADPHONE AMPLIFIER WITH STANDBY ACTIVE LOW

Alternative Part Number

  • LM4861M --: Pin-compatible 1W audio power amplifier in SO-8 with similar gain and supply range, widely available and a common drop-in substitute.
  • PAM8403 --: Class-D 3W stereo audio amplifier offering higher efficiency and output power, suitable for similar low-voltage audio applications.
  • TDA2822M --: Dual low-voltage audio power amplifier in DIP-8, a classic alternative for small speaker driver circuits with comparable supply requirements.

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