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TDF8546 - 4 x 45 W best efficiency amplifier

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General Description

The TDF8546 is one of a new generation of complementary quad Bridge-Tied Load (BTL) audio power amplifiers intended for automotive applications.

It has a best efficiency mode with full I2C-bus controlled diagnostics, including start-up diagnostics.

The TDF8546 can operate at a battery voltage as low as 6 V making this amplifier suitable for stop/start-car operation.

Overview

TDF8546 I2C-bus controlled 4  45 W best efficiency amplifier Rev.

8 — 27 September 2013 Product short data sheet 1.

Key Features

  • Stop/start-car prepared: keeps operating without audible disturbance during engine start at a battery voltage as low as 6 V.
  • New best efficiency mode with patented low switching distortion.
  • Extreme best efficiency mode (uses information from 4 channels) with 17 % less dissipation for uncorrelated signals compared to 2-channel best efficiency mode.
  • Operates in either legacy (non-I2C-bus) or I2C-bus modes (3.3 V and 5 V compliant).
  • Four hardware-programmable I2C-bus addr.

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