TPA2005D1-Q1 汽车类 1.4W 单声道无滤波 D 类音频功率放大器

The TPA2005D1 is a 1.4-W high-efficiency filter-free class-D audio power amplifier in a 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.

	TPA2005D1-Q1
Speaker Amp Type	Class-D
Output Power (W)	1.18
PSRR (dB)	75
Supply Min (Min) (Volt)	2.5
Supply Max (Max) (Volt)	5.5

TPA2005D1-Q1 特性

Qualified for Automotive Applications
1.4 W Into 8 From a 5-V Supply at THD = 10% (Typ)
Maximum Battery Life and Minimum Heat
- Efficiency With an 8- Speaker:
  - 84% at 400 mW
  - 79% at 100 mW
- 2.8-mA Quiescent Current
- 0.5-µA Shutdown Current
Only Three External Components
- Optimized PWM Output Stage Eliminates LC Output Filter
- Internally Generated 250-kHz Switching Frequency Eliminates Capacitor and 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 and Eliminates Bypass Capacitor
- Improved CMRR Eliminates Two Input Coupling Capacitors
Space-Saving Packages
- 3 mm × 3 mm QFN package (DRB)
- 3 mm × 5 mm MSOP PowerPAD™ Package (DGN)

TPA2005D1-Q1 芯片订购指南

器件	状态	温度	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
TPA2005D1DGNRQ1	ACTIVE	-40 to 85	0.50 \| 1ku	MSOP-PowerPAD (DGN) \| 8	2500 \| LARGE T&R
TPA2005D1DRBQ1	ACTIVE	-40 to 85	0.50 \| 1ku	SON (DRB) \| 8	3000
TPA2005D1TDGNRQ1	ACTIVE	-40 to 105	0.60 \| 1ku	MSOP-PowerPAD (DGN) \| 8	2500 \| LARGE T&R

TPA2005D1-Q1 工具与软件

培训内容	型号	软件/工具类型
音频的快速搜索选择工具	AUDIO_SELECTION_TOOL	免费评估工具