TPA751

TPA751概述

单声道差动输入、AB 类音频放大器,具有低电平有效关断

The is a bridge-tied load BTL audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 3.3-V supply, the TPA751 can deliver 250-mW of continuous power into a BTL 8- load at less than 0.6% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation is optimized for narrower band applications such as wireless communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. This device features a shutdown mode for power-sensitive applications with a supply current of 1.5 nA during shutdown. The TPA751 is available in a 3.0 × 3.0 mm MicroStar Junior™ BGA, 8-pin SOIC surface-mount package and a surface-mount PowerPAD™ MSOP.

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Fully Specified for 3.3-V and 5-V Operation
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Wide Power Supply Compatibility 2.5 V – 5.5 V
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Power Supply Rejection at 217 Hz
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84 dB at VDD = 5 V
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81 dB at VDD = 3.3 V
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Output Power for RL = 8
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700 mW at VDD = 5 V
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250 mW at VDD = 3.3 V
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Ultralow Supply Current in Shutdown Mode . . . 1.5 nA
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Thermal and Short-Circuit Protection
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Surface-Mount Packaging
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SOIC
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PowerPAD™ MSOP
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MicroStar Junior™ BGA

PowerPAD and MicroStar Junior are trademarks of Texas Instruments.

TPA751数据文档
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