TPA721中文资料700mW 单声道、模拟输入 AB 类音频放大器数据手册TI规格书

描述 Description

The TPA721 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 TPA721 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 7 µA during shutdown. The TPA721 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD MSOP, which reduces board space by 50% and height by 40%.

特性 Features

• Fully Specified for 3.3-V and 5-V Operation
• Output Power for RL = 8
• 250 mW at VDD = 3.3 V, BTL
• Integrated Depop Circuitry
• Surface-Mount Packaging
• PowerPAD™ MSOP

PowerPAD is a trademark of Texas Instruments.