SA58631TK,118

Overview

The SA58631TK,118 is a single-channel audio amplifier housed in an HVSON8 package with an exposed die attach paddle. It delivers 3 W output power to an 8 Ω load at a 9 V supply voltage. The device operates within a supply voltage range of 2.2 V to 18 V and features a quiescent current of 8 mA to 12 mA. Standby current is less than 10 μA. The closed-loop voltage gain is adjustable from 6 dB to 30 dB via external resistors. Power supply ripple rejection is typically 50 dB.

Feature Summary

• Bridge Tied Load (BTL) architecture with complementary PNP-NPN output stage
• CMOS-compatible standby and mute logic control
• Integrated thermal shutdown and output short circuit protection
• Low junction-to-ambient thermal resistance through exposed die attach paddle

Applications

• Professional and amateur mobile radio systems
• Portable consumer products such as toys and games
• Personal computer remote speakers

Procurement Notes

Verify the specific ordering suffix TK,118 against the manufacturer's current database to confirm packaging details and availability status. Ensure the component matches the HVSON8 package outline SOT909-1 for proper footprint compatibility. Cross-reference the datasheet revision history to confirm the document version aligns with your design requirements.

Selection Notes

Select this amplifier when a single-channel BTL configuration is required for moderate power applications. The adjustable gain range allows flexibility in system design without additional amplification stages. Consider the exposed paddle requirement for optimal thermal performance if operating near maximum power dissipation limits.

Part Context

This component belongs to the SA58631 family of 3 W BTL audio amplifiers manufactured by NXP Semiconductors. The SA58631TK,118 variant specifically denotes the surface-mount version in the HVSON8 package. It is designed for portable electronics requiring efficient audio amplification with low standby consumption.

Replacement Considerations

No public confirmed substitute part numbers are documented in the provided source material.