TAS5352A

125W 立体声数字放大器功率级

The device is a high-performance, integrated stereo digital amplifier power stage designed to drive a 4-Ω bridge-tied load BTL at up to 125 W per channel with low harmonic distortion, low integrated noise, and low idle current.

The TAS5352A has a complete protection system integrated on-chip, safeguarding the device against a wide range of fault conditions that could damage the system. These protection features are short-circuit protection, overcurrent protection, undervoltage protection, overtemperature protection, and a loss of PWM signal PWM activity detector.

A power-on-reset POR circuit is used to eliminate power-supply sequencing that is required for most power-stage designs.

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Total Power Output Bridge-Tied

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2 × 125 W at 10% THD+N Into 4 Ω

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2 × 100 W at 10% THD+N Into 6 Ω

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Total Power Output Single-Ended

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4 × 45 W at 10% THD+N Into 3 \xE2Ω

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4 × 35 W at 10% THD+N Into 4 Ω

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Total Power Output Parallel Mode

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1 × 250 W at 10% THD+N Into 2 Ω

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1 × 195 W at 10% THD+N Into 3 Ω

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>110 dB SNR A-Weighted With TAS5518 Modulator

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<0.1% THD+N 1 W, 1 kHz

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Supports PWM Frame Rates of 192 kHz to 432 kHz

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Resistor-Programmable Current Limit

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Integrated Self-Protection Circuitry, Including:

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Undervoltage Protection

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Overtemperature Warning and Error

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Overload Protection

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Short-Circuit Protection

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PWM Activity Detector

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Stand-Alone Protection Recovery

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Power-On-Reset POR to Eliminate System Power-Supply Sequencing

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

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Thermally Enhanced 44-Pin HTSSOP Package DDV

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Error Reporting, 3.3-V and 5-V Compliant

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EMI Compliant When Used With Recommended System Design