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TDF8541 Datasheet I2C-bus controlled 4 x 45 W power amplifier

Manufacturer: NXP Semiconductors

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General Description

The TDF8541 is one of a new generation of complementary quad Bridge-Tied Load (BTL) audio power amplifiers intended for automotive applications.

It has full I2C-bus controlled diagnostics, including start-up diagnostics.

The TDF8541 can operate at a battery voltage as low as 6 V making this amplifier suitable for stop/start-car operation.

Overview

TDF8541 I2C-bus controlled 4  45 W power amplifier Rev.

3 — 13 December 2011 Product 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.
  • Operates in either legacy (non I2C-bus) or I2C-bus modes (3.3 V and 5 V compliant).
  • Four hardware-programmable I2C-bus addresses.
  • Can drive 2  and 4  loads.
  • Speaker fault detection.
  • Start-up diagnostics with load detection: open, short, present; filtered for door-slam and chatter relays.
  • AC load (tweeter) detection with low and high cu.

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