NXP 公司的TDA1517ATW是 8W BTL或2 × 4 W SE音頻功率放大器，在HTSSOP20封裝內(nèi)集成了AB類輸出放大器，可用作單聲道橋接負(fù)載（BTL）或立體聲單端（SE）連接，具有良好的波紋抑制以及AC和DC短路安全。本文介紹了TDA1517ATW主要特性，方框圖以及BTL和SE連接應(yīng)用框圖。
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.
圖1。TDA1517ATW 方框圖
圖2。TDA1517ATW BTL 應(yīng)用方框圖
圖3。TDA1517ATW SE 應(yīng)用方框圖
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