TDA8542AT/N1,118

$1.34

Description：IC AMP CLASS AB STEREO 1.5W 20SO
Series：-
Mfr：NXP USA Inc.
Package：Tape & Reel (TR)

SKU:61d293898842 Category: Audio Amplifiers Brand: NXP USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC AMP CLASS AB STEREO 1.5W 20SO
Series：-
Mfr：NXP USA Inc.
Package：Tape & Reel (TR)
Type：Class AB
Output Type：2-Channel (Stereo)
Max Output Power x Channels @ Load：1.5W x 2 @ 8Ohm
Voltage - Supply：2.2V ~ 18V
Features：Depop, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type：Surface Mount
Supplier Device Package：20-SO
Package / Case：20-SOIC (0.295", 7.50mm Width)
Operating Temperature：-40°C ~ 85°C (TA)
Grade：-
Qualification：-

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TDA8542AT/N1,118

Overview

The TDA8542AT is a two-channel audio power amplifier delivering 2 × 1.5 W output to an 8 Ω load at 6 V supply. It features Bridge-Tied Load (BTL) amplifiers with complementary PNP-NPN output stages and standby/mute logic. The device operates within a supply voltage range of 2.2 V to 18 V, with a typical quiescent current of 15 mA and standby current of 10 μA. Total harmonic distortion is typically 0.15% at 0.5 W output. The unit is housed in a 20-pin SO package (SOT163-1).

Feature Summary

Bridge-Tied Load architecture with complementary PNP-NPN output stage for efficient power delivery.
Integrated standby and mute logic controlled by CMOS compatible levels to suppress switch-on/off noise.
Comprehensive protection mechanisms including thermal shutdown and short-circuit safety to ground, VCC, and across the load.
High supply voltage ripple rejection capability to maintain audio quality under varying power conditions.

Applications

Portable consumer products
Personal computers
Motor-driver (servo)

Procurement Notes

Verify the specific ordering suffix N1,118 against current manufacturer documentation to confirm packaging and compliance details. Confirm availability status as product lifecycles may change. Ensure design-in requirements match the 20-pin SO package dimensions and thermal characteristics specified in the datasheet before finalizing procurement plans.

Selection Notes

Select this component for applications requiring dual-channel BTL amplification with low external component count. The gain is adjustable via external resistors between 6 dB and 30 dB. Consider the SO20 package size and thermal resistance of 60 K/W for heat dissipation planning. Verify input impedance and bias current requirements align with the source circuit capabilities.

Part Context

The TDA8542AT belongs to the Philips/NXP audio amplifier family, superseding earlier specifications from November 1997. It is designed as a versatile solution for low-to-medium power audio applications where space efficiency and minimal external circuitry are priorities. The device integrates logic control directly into the amplifier structure.