Texas Instruments TPA4861 1-Channel Mono Audio Power Amplifier Data Sheet
Summary
This TPA4861 component is a highly efficient Bridge-Tied Load (BTL) audio power amplifier designed for building robust, compact audio systems. Rated to deliver 1W of continuous average power into an 8-Ω load from a single 5V supply, it eliminates the need for bulky output coupling capacitors and features internal protection against thermal overload and short circuits. The accompanying manual provides comprehensive technical specifications, details the external gain configuration, and guides engineers on utilizing its drop-in compatible surface-mount packaging. Ideal for professional electronics designers requiring high performance in a minimal footprint.
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 25 |
| File Size | 624.11 KB |
| Published | July 10, 2026 |
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Frequently Asked Questions
What is the continuous average output power for this amplifier?
It is capable of delivering 1 W into an 8-Ω load at 0.2% THD+N.
How should the BYPASS terminal be connected when used as a power amplifier?
It should be connected to a 0.1-µF – 1.0-µF capacitor.
What is the supply current when the device is put into shutdown mode?
The current drawn for shutdown is approximately 0.6µA.
Are there handling precautions required due to ESD risks?
It has limited built-in ESD protection; leads should be shorted or placed in conductive foam during storage or handling.