TDA2003H

Overview

The TDA2003H is a monolithic Class AB audio power amplifier designed for car radio applications. It operates with a supply voltage range of 8 V to 18 V and delivers up to 10 W output power into a 2 Ω load at 10% distortion. The device provides high output current capability, reaching 3.5 A repetitive peak current. It features very low harmonic and crossover distortion, ensuring high-fidelity audio performance.

Feature Summary

• Integrated protection systems including thermal shutdown, short-circuit protection, and load dump surge handling.
• High output current capability suitable for driving low impedance loads.
• Low external component count facilitating ease of assembly and space saving.
• Robust operation against polarity inversion and fortuitous open ground conditions.

Applications

• Car radio audio amplification
• Self-powered loudspeakers
• Hi-Fi field applications

Procurement Notes

Verify the specific ordering suffix (H or V) to confirm the package type, as the datasheet lists both Pentawatt and surface mount options. Ensure the design accounts for the maximum operating supply voltage of 18 V and junction temperature limits. Confirm compliance with automotive environmental requirements if used in vehicle electronics.

Selection Notes

Select this component for applications requiring a single-chip solution for moderate power audio amplification. It is suitable where low distortion and high efficiency are prioritized. Consider the thermal resistance and heatsinking requirements based on the expected ambient temperature and power dissipation levels.

Part Context

The TDA2003H belongs to STMicroelectronics' family of audio power amplifiers. It shares pin configuration with the TDA2002 but offers improved performance. It is designed for robust operation in automotive environments, featuring comprehensive protection mechanisms against electrical faults and thermal overload.

Replacement Considerations

The TDA2002 is noted as having the same pin configuration but lower performance. Verify compatibility with existing circuit layouts when substituting. No other direct substitute part numbers are confirmed in the provided documentation.