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TPA301 0.35W 单声道音频功率放大器

The TPA301 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 TPA301 can deliver 250-mW of continuous power into a BTL 8- load at less than 1% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation was optimized for narrower band applications such as cellular 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 quiescent current of 0.

	TPA301	TPA311	TPA321
Speaker Channels	Mono	Mono	Mono
Speaker Amp Type	Class-AB	Class-AB	Class-AB
Output Power (W)	0.35	0.35	0.35
PSRR (dB)	85	85	85
Supply Min (Min) (Volt)	2.5	2.5	2.5
Supply Max (Max) (Volt)	5	5.5	5.5

TPA301 特性

• Fully Specified for 3.3-V and 5-V Operation
• Wide Power Supply Compatibility 2.5 V - 5.5 V
• Output Power for RL = 8
  • 350 mW at VDD = 5 V, BTL
  • 250 mW at VDD = 3.3 V, BTL
• Ultra-Low Quiescent Current in Shutdown Mode...0.15 µA
• Thermal and Short-Circuit Protection
• Surface-Mount Packaging
  • SOIC
  • PowerPAD™ MSOP

TPA301 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
TPA301D	ACTIVE		0.36 | 1ku	SOIC (D) | 8	75 | TUBE
TPA301DG4	ACTIVE		0.36 | 1ku	SOIC (D) | 8	75 | TUBE
TPA301DGN	ACTIVE		0.46 | 1ku	MSOP-PowerPAD (DGN) | 8	80 | TUBE
TPA301DGNG4	ACTIVE		0.46 | 1ku	MSOP-PowerPAD (DGN) | 8	80 | TUBE
TPA301DGNR	ACTIVE		0.40 | 1ku	MSOP-PowerPAD (DGN) | 8	2500 | LARGE T&R
TPA301DGNRG4	ACTIVE		0.40 | 1ku	MSOP-PowerPAD (DGN) | 8	2500 | LARGE T&R
TPA301DR	ACTIVE		0.30 | 1ku	SOIC (D) | 8	2500 | LARGE T&R
TPA301DRG4	ACTIVE		0.30 | 1ku	SOIC (D) | 8	2500 | LARGE T&R

TPA301 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
TPA301D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA301D	TPA301D
TPA301DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA301DG4	TPA301DG4
TPA301DGN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA301DGN	TPA301DGN
TPA301DGNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA301DGNG4	TPA301DGNG4
TPA301DGNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA301DGNR	TPA301DGNR
TPA301DGNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA301DGNRG4	TPA301DGNRG4
TPA301DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA301DR	TPA301DR
TPA301DRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA301DRG4	TPA301DRG4

TPA301 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
TPA301 评估模块 (EVM)	TPA301EVM	开发电路板/EVM

TPA301 应用技术支持与电子电路设计开发资源下载

1. TPA301 数据资料 dataSheet 下载.PDF
2. TI 德州仪器扬声器放大器和调制器产品选型与价格 . xls