TI TAS5414CTPHDRQ1

The TAS5414C-Q1 and TAS5424C-Q1 are 4-channel digital audio amplifiers designed for automotive head units and external amplifier modules. When powered by a 14.4V supply, they continuously deliver 23W of power to a 4Ω load on 4 channels at less than 1% THD+N. Each channel is also capable of delivering 38W of power to a 2Ω load at 1% THD+N. The TAS5414C-Q1 uses single-ended analog inputs, while the TAS5424C-Q1 employs differential inputs, which enhances immunity to common-mode system noise. The digital pulse-width modulation (PWM) topology of this device significantly improves the efficiency of traditional linear amplifier solutions. In this way, an amplifier with a factor of 10 under typical music playback conditions will reduce power dissipation. This device integrates all the functions required for implementation in demanding OEM applications. These devices feature built-in load diagnostics that can detect and diagnose misconnected outputs, thereby helping to reduce test time during the manufacturing process.

• AEC-Q100 qualified for automotive applications, device ambient temperature: -55°C to 125°C
• Device HBM classification level: ±2500V
• Device CDM classification level: ±500V
• TAS5414C-Q1 – Single-ended input
• TAS5424C-Q1 – Differential input
• 4-channel digital power amplifier
• 4 analog inputs, 4 bridge-tied load (BTL) power outputs
• Typical output power at 10% THD+N:
  • 28W per channel into 4Ω load at 14.4V
  • 50W per channel into 2Ω load at 14.4V
  • 79W per channel into 4Ω load at 24V
  • 150W into 2Ω load at 24V (PBTL)
• Channels can be paralleled (PBTL) for high-current applications
• THD+N < 0.02% at 1kHz, 1W into 4Ω load
• Patented pop-noise suppression technology:
  • Soft mute with gain ramp control
  • Common-mode ramp trimming
• Patented AM interference avoidance
• Patented cycle-by-cycle current limiting
• 75dB PSRR
• 4-address I²C serial interface for device configuration and control
• Channel gain: 12dB, 20dB, 26dB, 32dB
• Load diagnostics:
  • Output open and short-circuit load
  • Output-to-supply and output-to-ground short
  • Patented high-frequency speaker detection
• Protection and monitoring features:
  • Short-circuit protection
  • Load dump protection up to 50V
  • Accidental open ground and supply fault tolerance
  • Patented DC output level detection during music playback
  • Overtemperature protection
  • Overvoltage and undervoltage conditions
  • Clip detector
• 44-pin PSOP3 (DKE) power SOP package, exposed thermal pad up, for TAS5424C-Q1
• 64-pin QFP (PHD) power package, exposed thermal pad up, for TAS5414C-Q1
• Designed specifically for automotive EMC requirements
• ISO9000:2002 TS16949 certified
• -40°C to 105°C ambient temperature range

• OEM/retail audio bodies and amplifier modules featuring rich functionality and high system configurations, requiring reduced thermal dissipation from audio power amplifiers