TDA8568Q/N3C,112

Overview

The TDA8568Q/N3C,112 is a Class-B quad car radio power amplifier manufactured by NXP USA Inc. It features four bridge-tied load (BTL) amplifiers with a fixed gain of 40 dB. The device delivers an output power of 4 × 25 W into a 4 Ω load at THD = 10%. Operating supply voltage ranges from 6 V to 18 V, with a typical quiescent current of 230 mA and standby current below 100 μA. It utilizes a 23-lead DBS23P plastic DIL-bent-SIL package.

Feature Summary

• Integrated diagnostic facility providing dynamic distortion detection, short-circuit indication, and temperature pre-warning via an open-collector output pin.
• Operational modes include operating, mute, and standby states controlled by a mode select switch input for flexible system management.
• Robust protection mechanisms encompass load dump protection up to 45 V, reverse polarity safety, and thermal shutdown capabilities.

Applications

• Car radio power amplification
• Automotive audio systems

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm compliance requirements and lead time status. Confirm availability as this component may be discontinued or subject to limited production runs. Ensure the selected variant matches the required package type and environmental specifications before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high output power in a compact through-hole package. Consider the fixed 40 dB gain and BTL configuration when designing the signal chain. Evaluate thermal management needs due to the power dissipation characteristics in automotive environments. Verify compatibility with existing control logic for the mode select and diagnostic pins.

Part Context

This part belongs to the TDA856 series of integrated circuits designed for automotive audio applications. It is functionally similar to the TDA8567Q but differs in gain settings. The device is housed in a DBS23P package, which provides efficient heat dissipation for high-power operations in vehicle infotainment systems.

Replacement Considerations

TDA8568Q/N3,112