TDA2050H

Overview

The TDA2050H is a monolithic integrated circuit in a Pentawatt package, designed as an audio class AB amplifier. It supports single or split supply operations with a maximum operating supply voltage of 50V (±25V). The device delivers up to 35W true RMS power into a 4-ohm load at THD=10% with ±18V supply, and up to 32W into an 8-ohm load at THD=10% with ±22V supply. It typically provides 50W music power into a 4-ohm load over 1 second at ±22.5V. Key electrical characteristics include a quiescent current range of 30mA to 90mA, input bias current of 0.5μA, and open-loop voltage gain of 80dB.

Feature Summary

• Integrated short-circuit protection limits output transistor current to prevent damage during accidental AC output-to-ground shorts.
• Thermal shutdown circuit reduces power dissipation and current consumption if the junction temperature reaches 150°C.
• Low harmonic and crossover distortion suitable for high-fidelity audio applications.

Applications

• Hi-Fi audio amplification systems
• High-class television sets

Procurement Notes

Verify the specific ordering suffix 'H' against official STMicroelectronics documentation to confirm exact pinout and mechanical specifications. Ensure compatibility with the Pentawatt package dimensions and thermal requirements before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring robust protection features and high output power in a compact Pentawatt package. Consider the need for external heatsinking based on calculated power dissipation and ambient temperature conditions to maintain safe operating temperatures.

Part Context

The TDA2050H belongs to the TDA2050 family of audio power amplifiers manufactured by STMicroelectronics. It is part of a series of advanced information products intended for use in high-quality audio reproduction equipment.

Replacement Considerations

TDA2050V