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TPA741 具有工作态高电平关断状态和 Depop 功能的单声道、差动输入、AB 类音频放大器

The TPA741 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 TPA741 can deliver 250-mW of continuous power into a BTL 8- load at less than 0.6% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation is optimized for narrower band applications such as wireless 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 supply current of 7 µA during shutdown.

	TPA710	TPA711	TPA721	TPA731	TPA741	TPA751
Speaker Channels	Mono	Mono	Mono	Mono	Mono	Mono
Headphone Channels		Mono
Speaker Amp Type	Class-AB	Class-AB	Class-AB	Class-AB	Class-AB	Class-AB
Output Power (W)	0.7	0.7	0.7	0.7	0.7	0.7
PSRR (dB)	85	85	85	85	85	85
Supply Min (Min) (Volt)	2.5	2.5	2.5	2.5	2.5	2.5
Supply Max (Max) (Volt)	5.5	5.5	5.5	5.5	5.5	5.5

TPA741 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
  • 700 mW at VDD = 5 V
  • 250 mW at VDD = 3.3 V
  • SOIC
  • PowerPAD™ MSOP
• Integrated Depop Circuitry
• Thermal and Short-Circuit Protection
• Surface-Mount Packaging
  • SOIC
  • PowerPAD™ MSOP

TPA741 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
TPA741D	ACTIVE	-40 to 85	0.55 | 1ku	SOIC (D) | 8	75 | TUBE
TPA741DG4	ACTIVE	-40 to 85	0.55 | 1ku	SOIC (D) | 8	75 | TUBE
TPA741DGN	ACTIVE	-40 to 85	0.65 | 1ku	MSOP-PowerPAD (DGN) | 8	80 | TUBE
TPA741DGNG4	ACTIVE	-40 to 85	0.65 | 1ku	MSOP-PowerPAD (DGN) | 8	80 | TUBE
TPA741DGNR	ACTIVE	-40 to 85	0.55 | 1ku	MSOP-PowerPAD (DGN) | 8	2500 | LARGE T&R
TPA741DGNRG4	ACTIVE	-40 to 85	0.55 | 1ku	MSOP-PowerPAD (DGN) | 8	2500 | LARGE T&R
TPA741DR	ACTIVE	-40 to 85	0.44 | 1ku	SOIC (D) | 8	2500 | LARGE T&R
TPA741DRG4	ACTIVE	-40 to 85	0.44 | 1ku	SOIC (D) | 8	2500 | LARGE T&R

TPA741 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
TPA741D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA741D	TPA741D
TPA741DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA741DG4	TPA741DG4
TPA741DGN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA741DGN	TPA741DGN
TPA741DGNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA741DGNG4	TPA741DGNG4
TPA741DGNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA741DGNR	TPA741DGNR
TPA741DGNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA741DGNRG4	TPA741DGNRG4
TPA741DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA741DR	TPA741DR
TPA741DRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPA741DRG4	TPA741DRG4

TPA741 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
TPA741 评估模块 (EVM)	TPA741EVM	开发电路板/EVM

TPA741 应用技术支持与电子电路设计开发资源下载

1. TPA741 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