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JSMSEMI TL431
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JSMSEMI TL431
- Type
- JSMSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JSMSEMI
- Electronic Component
- TL431
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Voltage Reference IC
- Electronic Component
- ±1%
- Electronic Component
- 0.057g
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0223278523
- Operating Temperature
- 25℃~+85℃
- Operating Voltage
- 37V
- Electronic Component
- 50ppm/℃
- Output Voltage
- 2.5V~36V
- Output Current
- 150mA
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 是一种高精度、可调电压基准芯片，常被广泛应用于电源管理和电压监测系统中。其工作电压范围从 2.5V 到 36V，并且具有极高的温度稳定性（50 ppm/℃），使其成为多种电子应用中一个理想的选择。该元件采用 SOT-23 封装，体积小巧，适合各种紧凑型电路设计。
二、基本特性
可调电压范围：TL431 的输出电压可以通过外部电阻进行调整，允许用户设置从 2.5V 到 36V 的任意电压输出。这使得其能够适应不同的电路需求和应用场景，增加了设计的灵活性。
高温度稳定性：其温度系数为 50 ppm/℃，即使在温度变化的环境下，TL431 仍能保持高精度的输出电压。这一特性极大地提升了其在温度变化较大的应用条件下的可靠性和稳定性。
低功耗特性：该芯片的功耗较低，适合用于便携式和低功耗电子产品中，有助于延长设备的电池寿命。
广泛的应用范围：TL431 被广泛应用于开关电源、线性稳压器、过压保护、以及各种其他需要稳定电压的场合。同时，它还可用于电压分压以及反馈电路，帮助设计各种精密的电源。
三、应用场景
电源管理： TL431 常用于开关电源中，作为反馈电压基准，确保输出电压稳定。通过适当的外部电阻分压，TL431 可以提供稳定的参考电压给控制电路，从而影响开关频率和工作状态。
稳压电源： 在线性稳压器设计中，TL431 可以用作一个高精度的可调参考源。通过设置外部电阻，用户可以在需要的电压范围内进行调整，实现符合需求的电压输出。
电池充电器： TL431 能够在充电过程中提供精确的电压参考，使得充电电路能有效监测和控制充电状态，以保护电池免受过充电的伤害。
过压保护： 在保护电路中，TL431 可以设定为过压检测器。当电路中的电压超过设定值时，TL431 可以发出警告信号或切断电源，以保障系统的安全性。
LED 驱动： 对于 LED 驱动电路，TL431 也可用于提供必要的电压参考和稳压，从而提高 LED 的照明效率和寿命。
四、设计注意事项
在使用 TL431 时，有几个设计要点需要重视：
- 电阻配置：选择适当的外部电阻值，以确保输出电压在所需范围内，并保持良好的负载线性度。
- 输入输出电压差：确保输入电压高于输出电压，以保持 TL431 的正常运行，并防止短路或过载现象。
- PCB设计：合理布局 PCB，避免高频信号干扰，确保电源的稳定和可靠。
五、总结
TL431 是一款性价比高、应用广泛的可调电压基准芯片，其卓越的性能和可靠性使其在现代电子设计中占据重要地位。无论是在电源管理、稳压电路还是过压保护等领域，TL431 都能提供优异的解决方案，帮助设计工程师实现高效、稳定的电源输出。在未来电子产品的开发中，TL431 仍将继续发挥其不可或缺的作用。
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