TPA3121D2 具有 SE 输出的 15W 立体声 D 类音频功率放大器 (TPA3121)

The TPA3121D2 is a 15-W (per channel), efficient, class-D audio power amplifier for driving stereo speakers in a single-ended configuration or a mono speaker in a bridge-tied-load configuration. The TPA3121D2 can drive stereo speakers as low as 4 . The efficiency of the TPA3121D2 eliminates the need for an external heat sink when playing music.

The gain of the amplifier is controlled by two gain select pins. The gain selections are 20, 26, 32, and 36 dB.

The patented start-up and shutdown sequences minimize pop noise in the speakers without additional circuitry

	TPA3121D2	TPA3122D2	TPA3123D2	TPA3124D2	TPA3125D2
Max. Power to Single-Ended Load	15	15	25	15	10
Max. Power to Bridge Tied Load	30	15	25	30	20
Min. Supported Single-Ended Load	4	4	4	4	4
Min. Supported Bridge Tied Load	8	8	8	8	8
Closed/Open Loop	Closed	Closed	Closed	Closed	Closed
Max. Number of Speaker Outputs	2	2	2	2	2
Input Type	Analog	Analog	Analog	Analog	Analog
Control Type	Hardware	Hardware	Hardware	Hardware	Hardware
Analog Supply Min [V]	10	10	10	10	10
Analog Supply Max [V]	26	30	30	26	26
Power Stage Supply Min (V)	10	10	10	10	10
Power Stage Supply Max (V)	26	30	30	26	26

TPA3121D2 特性

10-W/Ch Stereo Into an 8- Load From a 24-V Supply
15-W/Ch Stereo Into a 4- Load from a 22-V Supply
30-W/Ch Mono Into an 8- Load from a 22-V Supply
Operates From 10 V to 26 V
Can Run From +24 V LCD Backlight Supply
Efficient Class-D Operation Eliminates Need for Heat Sinks
Four Selectable, Fixed-Gain Settings
Internal Oscillator to Set Class D Frequency (No External Components Required)
Single-Ended Analog Inputs
Thermal and Short-Circuit Protection With Auto Recovery
Space-Saving Surface Mount 24-Pin TSSOP Package
Advanced Power-Off Pop Reduction
APPLICATIONS
- Flat Panel Display TVs
- DLP® TVs
- CRT TVs
- Powered Speakers

TPA3121D2 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
TPA3121D2PWP	ACTIVE	-40 to 85	1.30 \| 1ku	HTSSOP (PWP) \| 24	60 \| TUBE
TPA3121D2PWPG4	ACTIVE	-40 to 85	1.30 \| 1ku	HTSSOP (PWP) \| 24	60 \| TUBE
TPA3121D2PWPR	ACTIVE	-40 to 85	1.05 \| 1ku	HTSSOP (PWP) \| 24	2000 \| LARGE T&R
TPA3121D2PWPRG4	ACTIVE	-40 to 85	1.05 \| 1ku	HTSSOP (PWP) \| 24	2000 \| LARGE T&R

TPA3121D2 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
TPA3121D2PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TPA3121D2PWP	TPA3121D2PWP
TPA3121D2PWPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TPA3121D2PWPG4	TPA3121D2PWPG4
TPA3121D2PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TPA3121D2PWPR	TPA3121D2PWPR
TPA3121D2PWPRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TPA3121D2PWPRG4	TPA3121D2PWPRG4

TPA3121D2 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
TPA3121D2 评估模块 (EVM)	TPA3121D2EVM	开发电路板/EVM