TAS5631B 具有集成反馈的 PWM 输入 300W 立体声 D 类放大器

The TAS5631B is a high-performance PWM input class-D amplifier with integrated closed-loop feedback technology (known as PurePath HD technology) with the ability to drive up to 300 W (1) stereo into 4-Ω to 8-Ω speakers from a single 50-V supply.

PurePath HD technology enables traditional AB-amplifier performance (<0.03% THD) levels while providing the power efficiency of traditional class-D amplifiers.

Unlike traditional class-D amplifiers, the distortion curve does not increase until the output levels move into clipping.

PurePath HD technology enables lower idle losses, making the device even more efficient

	TAS5631B
Max. Power to Single-Ended Load	145
Max. Power to Bridge Tied Load	300
Max. Power to Parallel Bridge Tied Load	600
Min. Supported Single-Ended Load	2
Min. Supported Bridge Tied Load	4
Min. Supported Parallel Bridge Tied Load	2
Closed/Open Loop	Closed
Max. Number of Speaker Outputs	4
Input Type	PWM
Control Type	Hardware
Analog Supply Min [V]	10.8
Analog Supply Max [V]	13.2
Power Stage Supply Min (V)	25
Power Stage Supply Max (V)	52.5

TAS5631B 特性

PurePath™ HD Enabled Integrated Feedback Provides:
- Signal Bandwidth up to 80 kHz for High-Frequency Content From HD Sources
- Ultralow 0.03% THD at 1 W Into 4 Ω
- Flat THD at All Frequencies for Natural Sound
- 80-dB PSRR (BTL, No Input Signal)
- >100-dB (A-weighted) SNR
- Click- and Pop-Free Start-Up
Multiple Configurations Possible on the Same PCB With Stuffing Options:
- Mono Parallel Bridge-Tied Load (PBTL)
- Stereo Bridge-Tied Load (BTL)
- 2.1 Single-Ended Stereo Pair and Bridge-Tied Load Subwoofer
- Quad Single-Ended Outputs
Total Output Power at 10% THD+N
- 400 W per Channel in Mono PBTL Configuration
- 300 W per Channel in Stereo BTL Configuration
- 145 W per Channel in Quad Single-Ended Configuration
High-Efficiency Power Stage (>88%) With 60-mΩ Output MOSFETs
Two Thermally Enhanced Package Options:
- PHD (64-Pin QFP)
- DKD (44-Pin PSOP3)

TAS5631B 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
TAS5631BDKD	ACTIVE	0 to 70	7.45 \| 1ku	HSSOP (DKD) \| 44	29 \| TUBE
TAS5631BDKDR	ACTIVE	0 to 70	6.35 \| 1ku	HSSOP (DKD) \| 44	500 \| LARGE T&R
TAS5631BPHD	ACTIVE	0 to 70	6.55 \| 1ku	HTQFP (PHD) \| 64	90 \| JEDEC TRAY (5+1)
TAS5631BPHDR	ACTIVE	0 to 70	5.45 \| 1ku	HTQFP (PHD) \| 64	1000 \| LARGE T&R

TAS5631B 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
TAS5631BDKD	Green (RoHS & no Sb/Br)	NIPDAU	Level-4-260C-72 HR	TAS5631BDKD	TAS5631BDKD
TAS5631BDKDR	Green (RoHS & no Sb/Br)	NIPDAU	Level-4-260C-72 HR	TAS5631BDKDR	TAS5631BDKDR
TAS5631BPHD	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TAS5631BPHD	TAS5631BPHD
TAS5631BPHDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TAS5631BPHDR	TAS5631BPHDR

TAS5631B 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
TAS5631BDKD2 评估模块	TAS5631BDKD2EVM	开发电路板/EVM
TAS5631BPHD 评估模块	TAS5631BPHD2EVM	开发电路板/EVM