TPA3112D1 具有 SpeakerGuard™ 的 25W 单声道无滤波器 D 类音频放大器 (TPA3112)
The TPA3112D1 is a 25-W efficient, Class-D audio power amplifier for driving a bridge tied speaker. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard™ speaker protection system includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a "virtual" voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.
The TPA3112D1 can drive a mono speaker as low as 4Ω
|
TPA3112D1 |
| Max. Power to Bridge Tied Load |
25 |
| Min. Supported Bridge Tied Load |
4 |
| Closed/Open Loop |
Closed |
| Max. Number of Speaker Outputs |
1 |
| Input Type |
Analog |
| Control Type |
Hardware |
| Analog Supply Min [V] |
8 |
| Analog Supply Max [V] |
26 |
| Power Stage Supply Min (V) |
8 |
| Power Stage Supply Max (V) |
26 |
TPA3112D1 特性
- 25-W into an 8- Load at < 0.1% THD+N From a 24-V Supply
- 20-W into an 4- Load at 10% THD+N From a 12-V Supply
- 94% Efficient Class-D Operation into 8- Load Eliminates Need for Heat Sinks
- Wide Supply Voltage Range Allows Operation from 8 to 26 V
- Filter-Free Operation
- SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter plus DC Protection
- Flow Through Pin Out Facilitates Easy Board Layout
- Robust Pin-to-Pin Short Circuit Protection and Thermal Protection with Auto-Recovery Option
- Excellent THD+N/ Pop Free Performance
- Four Selectable, Fixed Gain Settings
- Differential Inputs
- APPLICATIONS
- Televisions
- Consumer Audio Equipment
TPA3112D1 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 |
| TPA3112D1PWP |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
HTSSOP (PWP) | 28 |
50 | TUBE |
|
| TPA3112D1PWPR |
ACTIVE |
-40 to 85 |
1.05 | 1ku |
HTSSOP (PWP) | 28 |
2000 | LARGE T&R |
|
TPA3112D1 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 |
| TPA3112D1PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TPA3112D1PWP |
TPA3112D1PWP |
| TPA3112D1PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TPA3112D1PWPR |
TPA3112D1PWPR |
TPA3112D1 工具与软件
TPA3112D1 应用技术支持与电子电路设计开发资源下载
- TPA3112D1 数据资料 dataSheet 下载.PDF
- TI 德州仪器扬声器放大器和调制器产品选型与价格 . xls
