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TPA3121D2

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具有单端输出的 15W 立体声、30W 单声道、10V 至 26V 电源电压、模拟输入 D 类音频放大器

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TPA3121D2

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产品详情

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 THD + N at 1 kHz (%) 0.04 Load (min) (Ω) 4 Analog supply voltage (min) (V) 10 Analog supply voltage (max) (V) 26 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 THD + N at 1 kHz (%) 0.04 Load (min) (Ω) 4 Analog supply voltage (min) (V) 10 Analog supply voltage (max) (V) 26 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4
  • 10-W/Ch Stereo Into an 8-Ω Load From a 24-V Supply
  • 15-W/Ch Stereo Into a 4-Ω Load from a 22-V Supply
  • 30-W/Ch Mono Into an 8-Ω 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

DLP Is a trademark of Texas Instruments
  • 10-W/Ch Stereo Into an 8-Ω Load From a 24-V Supply
  • 15-W/Ch Stereo Into a 4-Ω Load from a 22-V Supply
  • 30-W/Ch Mono Into an 8-Ω 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

DLP Is a trademark of Texas Instruments

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 Ω. 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.

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 Ω. 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.
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新一代 15W、立体声、模拟输入 D 类音频放大器：  TPA3110D2

可提供适用于电池供电系统、具有低空闲功率耗散（模拟输入）的新一代 30W 立体声 D 类放大器：  TPA3128D2

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类型 标题 下载最新的英语版本 日期
* 数据表 15W Stereo Class-D Audio Power Amplifier 数据表 (Rev. B) 2014年 1月 7日
应用手册 Using Thermal Calculation Tools for Analog Components (Rev. A) 2019年 8月 30日
应用手册 Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019年 8月 26日
应用手册 AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019年 6月 27日
应用手册 AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 2013年 5月 1日
EVM 用户指南 TPA3121D2EVM - User Guide 2008年 6月 13日

设计和开发

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评估板

TPA3121D2EVM — TPA3121D2 评估模块 (EVM)

TPA3121D2 评估模块集成单颗 20W D 类立体声音频功放，通过精简外围元件实现板级解决方案，可直接驱动扬声器并支持外部模拟音频输入。

用户指南: PDF
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  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
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  • 鉴定摘要
  • 持续可靠性监测
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