TDA2005R

Overview

The TDA2005R is a Class B dual audio power amplifier in Multiwatt11 package designed for car radio applications. It provides high output power of 10+10 W at RL=2Ω and 20 W bridge mode at RL=4Ω with THD=10%. Operating supply voltage ranges from 8 V to 18 V, with peak supply tolerance up to 40 V. The device supports stereo or bridge configurations, delivering up to 3.5 A repetitive output current. It features comprehensive protection against short circuits, overtemperature, load dump surges, and open ground conditions.

Feature Summary

• Class B dual-channel architecture supporting stereo or bridge-mono operation
• Integrated protection systems including thermal shutdown, output short-circuit, and load dump surge handling
• High current capability enabling drive of low impedance loads down to 1.6 Ω
• Designed specifically for automotive environments with robust fault tolerance

Applications

• Car radio power amplification
• Bus amplifier systems
• Two-way speaker crossover networks
• Audio power booster stages

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors. Confirm package marking matches Multiwatt11 specifications. Check datasheet revision history for design updates. Ensure thermal management meets junction temperature requirements. Validate RoHS compliance status for environmental regulations.

Selection Notes

Evaluate thermal resistance requirements based on expected power dissipation. Consider bridge configuration for higher power output with single speaker. Verify input sensitivity matches source signal levels. Assess heatsink size relative to ambient temperature constraints. Confirm supply voltage stability within operating range.

Part Context

Part of STMicroelectronics TDA200x family of audio power amplifiers. Shares architectural similarities with TDA2003 and TDA2004 but offers enhanced current capability. Designed as direct replacement for legacy automotive audio ICs. Multiwatt11 package provides efficient thermal dissipation for compact installations.

Replacement Considerations

TDA2004 and TDA2009 are documented substitutes with different power ratings. Verify pin compatibility and thermal characteristics when substituting. Bridge configuration performance may vary between replacements. Check gain settings and protection thresholds match original design requirements.