TDA2003V

Overview

The STMicroelectronics TDA2003V is a monolithic audio power amplifier in Pentawatt package, designed for car radio applications. It delivers up to 10W output power into a 2Ω load at 14.4V supply with 10% THD. The device operates from an 8V to 18V supply voltage and provides high output current capability of up to 3.5A repetitive peak. Key electrical parameters include a quiescent drain current of 50mA typical, input sensitivity of 14mV for 0.5W output, and a closed-loop voltage gain of 40dB. It features built-in protections against short circuits, thermal overload, and load dump surges up to 40V.

Feature Summary

• Integrated protection systems including thermal shutdown, AC/DC short-circuit protection, and load dump voltage surge handling.
• High output current capability supporting low impedance loads down to 2Ω.
• Low harmonic and crossover distortion ensuring high-fidelity audio reproduction.
• Requires very few external components, simplifying assembly and reducing board space.

Applications

• Car radio audio amplification
• Self-powered loudspeaker systems
• Home stereo audio amplifiers

Procurement Notes

Verify the specific ordering suffix 'V' corresponds to the Pentawatt package variant as documented in the official datasheet. Confirm that the application environment respects the maximum operating supply voltage of 18V and junction temperature limits. Ensure proper heatsinking is implemented given the thermal resistance characteristics. Check for compliance with automotive electrical standards if used in vehicle electronics.

Selection Notes

Select the TDA2003V when a single-channel Class AB amplifier is required for automotive or consumer audio applications needing robust protection features. Consider its 10W power capability into 2Ω loads and 40dB fixed gain structure. Evaluate the Pentawatt package thermal performance against the expected ambient temperature and heat dissipation requirements. Compare against the TDA2002 for pin-compatible upgrades with improved performance.

Part Context

The TDA2003 series represents an evolution of the TDA2002, maintaining the same pin configuration while offering enhanced performance metrics. It is part of STMicroelectronics' legacy audio amplifier lineup specifically engineered for the automotive industry's demanding electrical environments. The Pentawatt package integrates the power stage and thermal management solution into a compact form factor suitable for high-volume manufacturing.

Replacement Considerations

The TDA2002 is a pin-compatible predecessor with similar functionality but lower performance specifications. No other direct substitute part numbers are explicitly confirmed in the provided documentation.