IC元器件

TPA2005D1DGNR

参考价格：$0.57505-$1.34

Texas Instruments 线性 - 音頻放大器

TPA2005D1DGNR 供应商

TPA2005D1DGNR 属性参数

  • 标准包装：1
  • 类别：集成电路 (IC)
  • 家庭：线性 - 音頻放大器
  • 系列：-
  • 类型：D 类
  • 输出类型：1-通道（单声道）
  • 在某负载时最大输出功率 x 通道数量：1.45W x 1 @ 8 欧姆
  • 电源电压：2.5 V ~ 5.5 V
  • 特点：差分输入，短路保护和热保护，关机
  • 安装类型：表面贴装
  • 供应商设备封装：8-MSOP-PowerPad
  • 封装/外壳：8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘
  • 包装：®
  • 其它名称：296-26876-6

产品特性

  • 1.4 W Into 8 Ω From a 5 V Supply at THD = 10% (Typ)
  • Maximum Battery Life and Minimum Heat Efficiency With an 8-Ω Speaker: 84% at 400 mW 79% at 100 mW 2.8-mA Quiescent Current 0.5-μA Shutdown Current
  • Efficiency With an 8-Ω Speaker: 84% at 400 mW 79% at 100 mW
  • 84% at 400 mW
  • 79% at 100 mW
  • 2.8-mA Quiescent Current
  • 0.5-μA Shutdown Current
  • Capable of Driving an 8-Ω Speaker (2.5 V ≤ VDD ≤ 5.5 V) and a 4-Ω Speaker (2.5 V ≤ VDD ≤ 4.2 V)
  • Only Three External Components Optimized PWM Output Stage Eliminates LC Output Filter Internally Generated 250-kHz Switching Frequency Eliminates Capacitor & Resistor Improved PSRR (–71 dB at 217 Hz) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator Fully Differential Design Reduces RF Rectification & Eliminates Bypass Capacitor Improved CMRR Eliminates Two Input Coupling Capacitors
  • Optimized PWM Output Stage Eliminates LC Output Filter
  • Internally Generated 250-kHz Switching Frequency Eliminates Capacitor & Resistor
  • Improved PSRR (–71 dB at 217 Hz) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator
  • Fully Differential Design Reduces RF Rectification & Eliminates Bypass Capacitor
  • Improved CMRR Eliminates Two Input Coupling Capacitors
  • Space Saving Package 3 mm × 3 mm QFN package (DRB) 2.5 mm × 2.5 mm MicroStar Junior BGA Package (ZQY) 3 mm x 5 mm MSOP PowerPAD Package (DGN)
  • 3 mm × 3 mm QFN package (DRB)
  • 2.5 mm × 2.5 mm MicroStar Junior BGA Package (ZQY)
  • 3 mm x 5 mm MSOP PowerPAD Package (DGN)
  • Use TPA2006D1 for 1.8 V Logic Compatibility on Shutdown Pin

产品概述

The TPA2005D1 is a 1.4-W high efficiency filter-free class-D audio power amplifier in a MicroStar Junior™ BGA, QFN, or MSOP package that requires only three external components.Features like 84% efficiency, –71-dB PSRR at 217 Hz, improved RF-rectification immunity, and 15 mm2 total PCB area make the TPA2005D1 ideal for cellular handsets. A fast start-up time of 9 ms with minimal pop makes the TPA2005D1 ideal for PDA applications.In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the TPA2005D1. The device allows independent gain control by summing the signals from each function while minimizing noise to only 48 μVRMS.The TPA2005D1 has short-circuit and thermal protection.
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