TDA8563AQ/N2,112

Overview

The TDA8563AQ is a Class-B stereo BTL car radio power amplifier in a 13-lead DBS13P package. It delivers 40 W into 2 Ω and 25 W into 4 Ω at 14.4 V with 10% THD. Operating voltage ranges from 6.0 V to 18 V, with a maximum of 30 V non-operating. Quiescent current is typically 115 mA, dropping to 0.1 μA in standby. Gain is fixed at 26 dB, and ripple rejection is 60 dB. The device includes diagnostic outputs for distortion, short-circuit, and thermal detection.

Feature Summary

• Integrated dynamic distortion detector (DDD) that activates upon clipping onset to limit harmonic distortion via external control.
• Comprehensive protection suite including load dump tolerance up to 45 V, reverse polarity safety, and thermal shutdown at 150 °C junction temperature.
• Short-circuit safe operation to ground, supply voltage, and across the load with low average current consumption during fault conditions.
• Mode select switch enables distinct operating, mute, and standby states to suppress switch-on plops and minimize power dissipation.

Applications

• Car radio power amplification
• Automotive audio systems

Procurement Notes

Verify the component matches the NXP specification document dated February 21, 2001. Confirm the package type is DBS13P (SOT141-6) and the marking corresponds to the TDA8563AQ variant. Ensure the supplier provides traceability to Philips Semiconductors or NXP origins to guarantee authenticity and compliance with the stated absolute maximum ratings.

Selection Notes

Select this amplifier for applications requiring high output power in a single-chip solution with minimal external components. It is suitable for designs needing integrated diagnostics for system health monitoring. Consider the fixed gain and specific mode control requirements when designing the input and control circuitry. Verify thermal management capabilities given the 60 W total power dissipation rating.

Part Context

The TDA8563AQ belongs to the TDA856x family of automotive power amplifiers. It shares functional similarities with the TDA8560Q and TDA8566 series but offers specific BTL configuration capabilities optimized for car radio environments. The device represents a generation of amplifiers focusing on robustness against automotive electrical transients while maintaining audio fidelity.

Replacement Considerations

TDA8560Q

FAQ

How does the diagnostic output function during a short-circuit?

During a short-circuit to ground, supply, or across the load, pin 12 goes continuously LOW. For cross-load shorts, it pulses LOW for 20 ms and HIGH for 50 μs, indicating the fault state to external circuitry.

What is the purpose of the mode select switch?

The mode select switch controls the amplifier's state: Operating (normal), Mute (input suppressed), or Standby (low current). It allows microprocessor control to prevent switch-on plops by keeping the device muted during startup.