TPA3112D1-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With
the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C2
- 25-W into an 8-Ω Load at < 0.1% THD+N From a 24-V Supply
- 20-W into an 4-Ω Load at 10% THD+N From a 12-V Supply
- 94% Efficient Class-D Operation into 8-Ω Load Eliminates Need for Heat Sinks
- Wide Supply Voltage Range Allows Operation from 8 to 26 V
- Filter-Free Operation
- SpeakerGuard Protection Circuitry 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 and Pop Free Performance
- Four Selectable, Fixed Gain Settings
- Differential Inputs
The TPA3112D1-Q1 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™ protection circuitry 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-Q1 can drive a mono speaker as low as 4 Ω. The high efficiency of the device, > 90%, eliminates the need for an external heat sink when playing music.
The outputs are fully protected against shorts to GND, VCC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.
带有负载突降和 I2C 诊断功能的 22W 单声道汽车数字音频放大器： TAS5421-Q1
带有负载突降和 I2C 诊断功能的 8W 单声道汽车数字音频放大器： TAS5411-Q1
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | 25W 无滤波器单声道D 类音频功率放大器，此放大器具有 | PDF | HTML | PDF | HTML | 2017-7-17 | |
| 应用手册 | Using Thermal Calculation Tools for Analog Components (Rev. A) | 2019-8-30 | ||||
| 应用手册 | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019-8-26 | ||||
| 应用手册 | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019-6-27 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
TPA3112D1EVM — TPA3112D1 评估模块
TPA3112D1 评估模块包含一个 25W D 类单声道音频功率放大器和安装在电路板上的少量外部组件，它可用于直接驱动扬声器，这是借助用作输入的外部模拟音频源实现的。该 EVM 的默认输出滤波器配置是 LC 滤波器，但是也可轻松地配置为支持无滤波器操作。
设计人员可以使用 TPA3112D1EVM 快速评估声音质量并验证其应用的规范性。另外，TPA3112D1EVM 用户指南还包含用作参考设计的原理图、布局和物料清单。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
订购和质量
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