车载音频功率放大器IC
东芝车载音频功率放大器采用先进的低导通电阻0.13um工艺，融合车载各种保护功能和原始安全功能，实现高品质设计。
此外，利用TB类原始的线性高效技术，实现了与d类放大器相当的低功耗设计。
该放大器为用户提供了安全、高可靠性和低功耗的产品。
产品线
4通道音频功率放大器IC（推荐产品）
| 工艺 | 器件型号 | 最大功率 | 等级 | 电压增益 | I2C总线 | 输出直流偏移检测 | 片断检测 |
短路检测 | 高边开关 | 半短路检测 | 扬声器烧坏预防 | 2Ω负载 | GSM | 6V 巡航 |
封装 | 状态 | |
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| VCC＝ 15.2V | VCC＝ 14.4V | ||||||||||||||||
| BiCD0.13 μm |
TB2952AHQ | 49W | 45W | AB | 26dB／ 12dB |
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HZIP25 | MP | ||
| 49W | 45W | KB** | 26dB／ 16dB |
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HZIP25 | |||||
| CD0.13μm | 45W | 40W | AB | 26dB | |
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HZIP25 | |||||||
| HSOP36 | |||||||||||||||||
| 49W | 44W | AB | 26dB | * |
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HZIP25 | ||||||
| 49W | 44W | AB | 26dB | * |
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HZIP25 | |||||||
| 49W | 45W | AB | 26dB | |
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HZIP25 | ||||||
| 49W | 45W | TB*** | 26dB／ 16dB |
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HSOP36 | |||||
| 45W | 40W | TB*** | 26dB／ 16dB |
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HSOP36 | ||||||
* 专用输出直流偏移检测（东芝专利）
** KB: Knitted BTL(Bridge Tied Load)
*** TB: Tied BTL(Bridge Tied Load)
1通道音频功率放大器IC
| 工艺 | 器件型号 | 最大输出 | 等级 | 电压增益 | 热检测 | 扬声器打开检测 | 短路检测 | 过电压检测 | 说明 | 封装 | 状态 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VCC＝ 16V | VCC＝ 12V | |||||||||||
| BiCD0.13μm | 5W | 3W | AB | 26dB （可调） |
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行人车辆声音 | TSSOP16 | MP | |
技术专题
4通道音频功率放大器IC概念
- CD 0.13μm工艺
+B浪涌的高韧性工艺
- 对于噪声的抗干扰性强
易于设计EMI／EMC／BCI等
- 专用输出直流偏移检测（东芝专利）
该集成电路可对扬声器端子进行专用直流偏移电压检测。可以实现一种系统以防止由于产生直流偏移电压而导致扬声器音圈烧坏。
- 小型扁平封装
- 全新线性高效AMP“TB级”
与其它AMP相比，温度降低了大约20-40摄氏度。
- 6V巡航设计
- 诊断功能
AB／TB级AMP的温度数据
测试条件
Vcc＝13.2V，f＝1kHz，RL＝4Ω，Pout＝0.4W×4ch工作，Ta＝25℃
散热器热阻：6.5℃/W（铝制尺寸：85×85×2mm）
东芝原创线性高效放大器：TB级实现了高效TCB701FNG（50W）／702FNG（45W）
高效（东芝专利）
功耗比较
- vs传统AB级AMP >>> 减少80%
- vs数字D级AMP >>> 在Pout < 4W时接近
低BOM成本
合理的外部元件
- vs传统AB级AMP >>> 相同
- vs数字D级AMP >>> 不到一半
专用输出直流偏移检测（东芝专利）
- 该集成电路可对扬声器端子进行专用直流偏移电压检测。可以实现一种系统以防止由于产生直流偏移电压而引起扬声器音圈烧坏。
应用
Queries about purchasing, sampling and IC reliability
库存查询与购买
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Through this website you are able to proceed to the website of our distributors ("Third Party Website") which is not under the control of Toshiba Corporation and its subsidiaries and affiliates (collectively "Toshiba"). The Third Party Website is made available to you as a convenience only and you agree to use the Third Party Website at your own risk. The link of the Third Party Website does not necessarily imply a recommendation or an endorsement by Toshiba of the Third Party Website. Please be aware that Toshiba is not responsible for any transaction done through the Third Party Website, and such transactions shall be subject to terms and conditions which may be provided in the Third Party Website.
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