The TAS5162 is a high performance, integrated stereo digital amplifier power stage with an improved protection system. The TAS5162 is capable of driving a 6- bridge-tied load (BTL) at up to 210 W per channel at THD = 10%, low integrated noise at the output, low THD+N performance without clipping, and low idle power dissipation.

A low-cost, high-fidelity audio system can be built using a TI chipset, comprising a modulator (e.g., TAS5508) and the TAS5162.

This system only requires a simple passive LC demodulation filter to deliver high-quality, high-efficiency audio amplification with proven EMI compliance. This device requires two power supplies, at 12 V for GVDD and VDD, and at 50V for PVDD. The TAS5162 does not require power-up sequencing due to internal power-on reset. The efficiency of this digital amplifier is greater than 90% into 6 , which enables the use of smaller power supplies and heatsinks.

The TAS5162 has an innovative protection system integrated on-chip, safeguarding the device against a wide range of fault conditions that could damage the system. These safeguards are short-circuit protection, overcurrent protection, undervoltage protection, and overtemperature protection. The TAS5162 has a new proprietary current-limiting circuit that reduces the possibility of device shutdown during high-level music transients. A new programmable overcurrent detector allows the use of lower-cost inductors in the demodulation output filter.

• 2×160 W at 10% THD+N Into 8- BTL
• 2×210 W at 10% THD+N Into 6- BTL
• 1×300 W at 10% THD+N Into 4- PBTL
• >110 dB SNR (A-Weighted, TAS5518 Modulator)
• <0.09% THD+N at 1 W
• Two Thermally Enhanced Package Options:
  • DKD (36-pin PSOP3)
  • DDV (44-pin HTSSOP)
• High-Efficiency Power Stage (>90%) With 80-m Output MOSFETs
• Power-On Reset for Protection on Power Up Without Any Power-Supply Sequencing
• Integrated Self-Protection Circuits Including Undervoltage, Overtemperature, Overload, Short Circuit
• Error Reporting
• EMI Compliant When Used With Recommended System Design
• Intelligent Gate Drive
• Mid-Z Ramp Compatible for reduced ‘pop noise’
• APPLICATIONS
  • Mini/Micro Audio System
  • DVD Receiver
  • Home Theater

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