TDA8547TSN1/02,118

Overview

The TDA8547TSN1/02,118 is a dual-channel BTL audio power amplifier manufactured by NXP Semiconductors. It delivers 2 × 0.7 W output power into an 8 Ω load at a 5 V supply. The device features a complementary PNP-NPN output stage with low saturation voltage and includes standby/mute logic controlled via the MODE pin. A SELECT pin allows switching one channel to standby for loudspeaker selection or quiescent current reduction. It operates within a supply voltage range of 2.2 V to 18 V.

Feature Summary

• Dual-channel Bridge-Tied Load (BTL) architecture with selectable channel operation
• Integrated standby and mute control logic with CMOS compatible levels
• Built-in thermal shutdown protection and short-circuit safety to ground, VCC, and across the load
• High supply voltage ripple rejection capability

Applications

• Telecommunication equipment
• Portable consumer products
• Personal computers
• Motor-driver (servo)

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm RoHS compliance status against the latest manufacturer documentation. Ensure the component source is authorized to guarantee authenticity. Check for any superseded data sheets that may alter specifications. Validate lead-free soldering compatibility if required for the assembly process.

Selection Notes

Select this component when a compact dual-channel audio solution with independent channel switching is required. It is suitable for applications needing low quiescent current in standby mode. Consider the SSOP20 package constraints for PCB layout. Verify gain settings using external feedback resistors within the specified range. Ensure thermal management meets ambient temperature requirements for the target application.

Part Context

This part belongs to the TDA854x series of audio amplifiers from NXP Semiconductors. It shares functional similarities with the TDA8542TSDK-T but offers distinct channel switching capabilities. The series is designed for low-voltage consumer electronics applications requiring efficient power amplification in small form factors.

Replacement Considerations

The TDA8542TS is a similar dual-channel BTL amplifier from the same family. Verify pinout compatibility and output power ratings before substitution. Check if the replacement supports the required channel switching functionality. Ensure thermal characteristics match the original design constraints.