TAS5162

210W 立体声数字放大器功率级

The 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 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.

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2×160 W at 10% THD+N Into 8- BTL

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2×210 W at 10% THD+N Into 6- BTL

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1×300 W at 10% THD+N Into 4- PBTL

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>110 dB SNR A-Weighted, TAS5518 Modulator

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<0.09% THD+N at 1 W

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Two Thermally Enhanced Package Options:

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DKD 36-pin PSOP3

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DDV 44-pin HTSSOP

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High-Efficiency Power Stage >90% With 80-m Output MOSFETs

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Power-On Reset for Protection on Power Up Without Any Power-Supply Sequencing

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Integrated Self-Protection Circuits Including Undervoltage, Overtemperature, Overload, Short Circuit

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Error Reporting

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EMI Compliant When Used With Recommended System Design

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Intelligent Gate Drive

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Mid-Z Ramp Compatible for reduced ‘pop noise’

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APPLICATIONS

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Mini/Micro Audio System

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DVD Receiver

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Home Theater

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