TDA2003AV

Overview

The TDA2003AV is a monolithic audio power amplifier designed for car radio applications. It operates in a Pentawatt vertical package and delivers up to 10 W output power into a 4 Ω load at 14.4 V supply with 10% distortion. The device provides high output current capability of up to 3.5 A repetitive peak current. It features very low harmonic and crossover distortion, ensuring high-fidelity audio reproduction.

Feature Summary

• Integrated protection systems including thermal limiting, short-circuit protection, and load dump voltage surge handling.
• Capable of driving inductive loads such as coupling transformers for audio modulation without external components.
• Pin-to-pin compatible with the TDA2002 while offering improved performance characteristics.

Applications

• Car radio audio amplification
• Self-powered loudspeaker systems
• Audio modulation circuits

Procurement Notes

Verify the specific ordering suffix 'V' corresponds to the vertical Pentawatt package configuration. Confirm that the component status aligns with project requirements, as this product may be classified as obsolete or end-of-life by the manufacturer. Ensure compatibility with existing PCB layouts designed for the standard pinout.

Selection Notes

Select this component for designs requiring a single-channel Class AB amplifier with minimal external circuitry. It is suitable for automotive environments due to its robust protection against voltage surges and open ground conditions. Consider the thermal resistance and heatsinking requirements based on the expected ambient temperature and power dissipation levels.

Part Context

This part belongs to the TDA2003A family of audio amplifiers from STMicroelectronics. It is an evolution of the TDA2002, maintaining the same footprint but enhancing electrical performance. The device utilizes BCD technology to integrate power stages and control logic on a single die.

Replacement Considerations

The TDA2002 is a direct pin-compatible predecessor. Other manufacturers produce equivalent 10W car radio amplifiers, but verification of pinout and electrical specifications is required before substitution.

FAQ

How does the TDA2003AV handle accidental polarity inversion?

The device can withstand high current (up to 5 A) during polarity inversion without damage, provided a quick-blow fuse is used in series with the supply.

What protection is provided against an open ground condition?

Protection diodes are included internally to prevent damage if the ground connection is accidentally opened while the radio is ON.