原标题：NXP TDA1517ATW 8W BTL音频功率放大方案

　　nxp 公司的TDA1517ATW是 8W BTL或2 × 4 W SE音频功率放大器，在HTSSOP20封装内集成了AB类输出放大器，可用作单声道桥接负载(BTL)或立体声单端(SE)连接，具有良好的波纹抑制以及AC和DC短路安全。本文介绍了TDA1517ATW主要特性，方框图以及BTL和SE连接应用框图。

　　TDA1517ATW：8 W BTL or 2 × 4 W SE power amplifier

　　The TDA1517ATW is an integrated class-AB output amplifier contained in a plastic heatsink thin shrink small outline package (HTSSOP20). The device is primarily developed for multimedia applications.

　　TDA1517ATW 主要特性：

　　• Requires very few external components

　　• Flexibility in use: mono Bridge-Tied Load (BTL) and stereo Single-Ended (SE); it should be noted that in stereo applications the outputs of both amplifiers are in opposite phase

　　• High output power

　　• Low offset voltage at output (important for BTL)

　　• Fixed gain

　　• Good ripple rejection

　　• Mode select switch (operating, mute and standby)

　　• AC and DC short-circuit safe to ground and VP

　　• Electrostatic discharge protection

　　• Thermal protection

　　• Reverse polarity safe

　　• Capable of handling high energy on outputs (VP = 0 V)

　　• No switch-on/switch-off plop

　　• Low thermal resistance.

　　图1。TDA1517ATW 方框图

　　图2。TDA1517ATW BTL 应用方框图

　　图3。TDA1517ATW SE 应用方框图