TDA8563Q/N2,112

Overview

The TDA8563Q is a Class-B stereo BTL car radio power amplifier in a 13-lead DBS13P package. It delivers up to 40 W into 2 Ω or 25 W into 4 Ω at 14.4 V with 10% THD. Operating voltage ranges from 6.0 V to 18 V, with a typical quiescent current of 115 mA and standby current under 10 μA. The fixed closed-loop gain is 26 dB, and supply ripple rejection is 60 dB. Total harmonic distortion is typically 0.1% at 1 W output.

Feature Summary

• Integrated diagnostic facility for dynamic distortion detection, short-circuit monitoring, and thermal protection via an open-collector output pin.
• Built-in protections including load dump tolerance, reverse polarity safety, and low power dissipation during fault conditions.
• Mode select switch enables operating, mute, and standby states to prevent switch-on plops and reduce power consumption.
• Requires minimal external components due to internal reference voltages and integrated filtering capabilities.

Applications

• Car radio power amplification
• Automotive audio systems
• BTL speaker driving

Procurement Notes

Verify the specific ordering suffix (e.g., /N2,112) against the manufacturer's latest datasheet to confirm package type and compliance status. Ensure the component matches the required lead length and thermal characteristics for your PCB layout. Confirm availability as older revisions may be discontinued.

Selection Notes

Select this device for applications requiring high output power in a single-chip solution with built-in diagnostics. Consider the 13-lead through-hole package for ease of manual assembly or wave soldering. Evaluate thermal resistance requirements based on ambient temperature and heat sinking capabilities.

Part Context

The TDA8563Q belongs to NXP's family of automotive audio power amplifiers designed for robust performance in vehicle environments. It integrates two bridge-tied-load amplifiers into a single unit, simplifying design compared to discrete solutions. The device replaces earlier versions with updated specifications and enhanced protection features.

Replacement Considerations

Check for direct replacements like TDA8563AQ/N2C if RoHS compliance is mandatory, as the original TDA8563Q may be obsolete. Verify pin compatibility and electrical parameters before substitution.