TDA1562Q/N3C,112

Overview

The TDA1562Q/N3C,112 is a monolithic integrated 70 W/4 Ω Bridge-Tied Load (BTL) class-H high efficiency power amplifier in a 17 lead DIL-bent-SIL plastic power package. It operates from a single low supply voltage of 8 V to 18 V. The device features differential inputs with high common mode rejection and fixed gain. It includes diagnostic facilities for dynamic distortion, short-circuit, open load, and temperature protection.

Feature Summary

• Class-H operation enables high output power by lifting the internal supply voltage via external electrolytic capacitors when larger voltage swings are required.
• Integrated diagnostic pin provides status information regarding dynamic distortion detection, output short-circuits, open loads, and thermal protection.
• Mode select input allows switching between standby, mute, and on states, while a quick start option ensures rapid operational readiness.
• Robust protection mechanisms include load dump protection, short-circuit safety to ground and supply, and automatic reduction of output power at excessive case temperatures.

Applications

• Car audio systems such as car radios
• Car audio boosters
• Mains fed midi or mini audio combinations
• TV sound applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current catalog to confirm package dimensions and lead length variations. Confirm RoHS compliance status and product lifecycle stage, as specifications may change without notice. Ensure the design accounts for the preliminary specification nature if referencing older documentation versions.

Selection Notes

Select this component for applications requiring high efficiency and minimal external components. Consider the thermal resistance characteristics and heatsink requirements based on music signal duty cycles. Evaluate the need for diagnostic integration if system monitoring for faults like clipping or overheating is required.

Part Context

This part belongs to the TDA1562 family, which includes variants like TDA1562ST and TDA1562SD. These devices share the same core functionality but differ in package styles. The TDA1562 series is designed for high-power audio amplification with built-in protections suitable for automotive and consumer electronics environments.

Replacement Considerations

Direct substitutes within the same family include TDA1562ST and TDA1562SD. Verify package compatibility, specifically the DBS17P versus RDBS17P form factors, before substitution. Ensure electrical parameters match the application requirements.