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Hottech TL431
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Hottech TL431
- Type
- HOTTECH
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOTTECH
- Electronic Component
- TL431
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Voltage Reference IC
- Electronic Component
- ±1%
- Electronic Component
- 0.144g
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0223186464
- Operating Temperature
- 20℃~+85℃
- Electronic Component
- 50ppm/℃
- Output Voltage
- 2.5V~36V
- Output Current
- 150mA
- Output Type
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
TL431 产品概述
一、产品简介
TL431 是一种可调的电压基准芯片，广泛应用于电源管理和信号调节领域。该芯片的输出电压可以在 2.5V 到 36V 之间进行调整，具有良好的线性度和温度稳定性。TL431 封装为 SOT-23，体积小巧，适合于空间有限的应用场合，并能够支持 100mA 的负载电流，适应多种不同的电路需求。
二、基本特性
可调输出电压：TL431 的输出电压可通过外部电阻调整，具备从 2.5V 到 36V 的灵活性。这使得 TL431 能够适应不同的应用场景，包括电源转换、稳压器设计等。
负载能力：此芯片可以支持高达 100mA 的输出电流，在实际应用中，能够驱动大多数低功耗负载，为各种电路提供稳定的电压参考。
高精度与低温漂：TL431 具有良好的电压稳定性和低温度漂移特性，适合用于需要高精准电压参考的场合，例如仪器仪表、射频电路等。
简单的外部元件设计：使用 TL431 时，只需外加少量的外部电阻，即可完成受控输出电压的调节，简化了电路设计，降低了 BOM 成本。
封装形式：TL431 的 SOT-23 封装型号非常适合于现代电子设备的紧凑设计，能够在小型化的集成电路中极大地节省空间。
三、工作原理
TL431 的工作原理依靠其内部的比例电压调节器。通过连接外部电阻电桥，用户可以设定期望的输出电压值。其内部比较器会监测输出端与设定电压之间的差异，通过反馈调节确保输出电压维持在期望值。
当输出电压低于设定电压时，内部调节器会提升输出，反之亦然，形成一个闭环反馈系统。这样的设计使芯片在各类负载条件下都能维持稳定的输出电压，表现出优异的动态响应。
四、应用领域
TL431 广泛应用于以下几个方面：
电源适配器：在交流/直流电源适配器中，TL431 可以作为电压反馈元件，确保输出电压稳定，满足电子设备的电源需求。
开关电源：作为电源稳压的核心元件，TL431 在开关电源设计中，能与其他组件配合使用，实现高效的电压调节和管理。
LED 驱动：在 LED 照明系统中，TL431 通过提供精确的电压参考，能够稳定 LED 的工作状态，确保光输出的一致性和稳定性。
测量仪器和传感器：TL431 的高精度输出使其在测量和传感器电路中非常有用，能保障测量结果的准确性。
电机控制和负载监控：在电机驱动和负载监控电路中，TL431 可用于反馈电压监控，实现高效的控制方案。
五、总结
TL431 是一种高效、灵活且经济实惠的可调电压基准芯片，凭借其优越的性能和可扩展性，已经成为现代电子产品设计中不可或缺的核心元件之一。其应用领域广泛，从电源管理到负载控制均能发挥重要作用。随着电子技术的不断发展，TL431 的应用潜力将会进一步扩大，为更多领域的创新设计提供支持。
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