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TPA6404-Q1 - 45W 2MHz Analog Input 4-Channel Automotive Class-D Audio Amplifier

General Description

The TPA6404-Q1 device is a four-channel analoginput Class-D audio amplifier that implements a 2.1MHz PWM switching frequency that enables a cost optimized solution in a very small 4.5cm2 PCB size, full operation down to 4.5V for start/stop events, and exceptional sound quality with up to 100kHz aud

Key Features

  • Advanced load diagnostics.
  • AC diagnostic for tweeter detection with impedance and phase response.
  • Integrated sine wave generator.
  • Easy to meet CISPR25-L5 EMC specification.
  • AEC-Q100 Qualified for automotive.

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Datasheet Details

Part number TPA6404-Q1
Manufacturer Texas Instruments
File Size 1.54 MB
Description 45W 2MHz Analog Input 4-Channel Automotive Class-D Audio Amplifier
Datasheet download datasheet TPA6404-Q1 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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TPA6404-Q1 SLOS970B – JANUARY 2018 – REVISED JANUARY 2025 TPA6404-Q1 45W, 2MHz Analog Input 4-Channel Automotive Class-D Audio Amplifier with Load Dump Protection and I2C Diagnostics 1 Features • Advanced load diagnostics – AC diagnostic for tweeter detection with impedance and phase response – Integrated sine wave generator • Easy to meet CISPR25-L5 EMC specification • AEC-Q100 Qualified for automotive applications: – Temperature Grade 1: –40°C to 125°C TA – Device HBM ESD classification level: 3A – Device CDM ESD classification level: C4B • Audio Inputs – 4 Channel differential analog input – Four I2C-controlled gain options – High input impedance for low value AC-coupling capacitor • Audio outputs – Four-channel Bridge-tied load (BTL), with option of parallel BTL (PBTL) – Up to 2.