STMicroelectronics

TS4890IST

TS4890IST Description

The TS4890IST is a Class AB audio amplifier mono IC from STMicroelectronics, designed to deliver 1W output power at 8 ohms load. It operates within a supply voltage range of 2.5V to 5.5V, making it suitable for low-voltage applications. The IC is RoHS3 compliant, REACH unaffected, and has an ECCN classification of EAR99. It is available in a tape & reel (TR) package for surface mount applications.

TS4890IST Features

• Class AB Operation: Provides high efficiency and low distortion compared to Class A amplifiers.
• 1W Output Power: Capable of delivering 1W output power at 8 ohm load, suitable for small to medium audio applications.
• Wide Voltage Range: Operates from 2.5V to 5.5V, making it ideal for low-voltage battery-powered devices.
• Depop, Standby, and Thermal Protection: Enhances reliability and prevents damage due to overcurrent, overvoltage, or overheating.
• Low Moisture Sensitivity Level (MSL): MSL 1 (Unlimited), allowing for easier handling and storage.
• Compact Surface Mount Package: Facilitates integration into space-constrained designs.

TS4890IST Applications

The TS4890IST is ideal for various audio applications requiring low power and low voltage operation:

1. Portable Audio Devices: Due to its low power consumption and compact size, it is suitable for portable audio devices like headphones, earbuds, and small speakers.
2. IoT Devices: Its low-voltage operation and small form factor make it suitable for battery-powered IoT devices with audio output requirements.
3. Smart Home Devices: Can be used in smart home devices like smart speakers, doorbells, and security cameras with audio capabilities.
4. Wearable Devices: Its compact size and low power consumption make it ideal for wearable devices with audio output, such as smartwatches and fitness trackers.

Conclusion of TS4890IST

The TS4890IST is a versatile, low-power, and low-voltage Class AB audio amplifier from STMicroelectronics. Its unique combination of features, such as depop, standby, and thermal protection, along with its compact surface mount package, make it an excellent choice for a wide range of audio applications. Its suitability for low-voltage operation and small form factor make it ideal for portable, IoT, smart home, and wearable devices.