CATEGORIES

瞬态电压抑制器 (TVS)

瞬态电压抑制器 (TVS) 是一种雪崩二极管,经过专门设计用于钳制电压和耗散高瞬态功率浪涌。意法半导体的Transil™保护器件能够在短时间内分流高浪涌电流。

在并行保护配置中,固态单片式PN结器件和瞬态电压抑制器与敏感半导体组合使用,以确保针对电气过应力 (EOS) 或静电放电 (ESD) 提供保护。

与金属氧化物压敏电阻器 (MOV) 相比,TVS器件具有诸多优势 - 因为没有老化效应,可以确保长期稳定性和更高的可靠性。

因为拥有更高的品质和稳健性,TVS设计优于齐纳解决方案,后者的额定直流电流较低,并不适合浪涌抑制应用。

高性能TVS器件

意法半导体的TVS产品组合作为独特的高性能器件,有工业级和汽车级 (AEC-Q101) 版本可供选择,以确保符合所有监管要求和标准。

我们的新一代TVS二极管提供出色的功率密度,专为各种工业和汽车应用而设计。

TVS:两种工作模式,贴合您的应用

    瞬态电压抑制器的模式可为以下两种不同工作模式中的一种:
  • 正常模式,此时的器件对于应用是透明的(低泄漏电流)
  • 浪涌抑制模式,过电压在钳位电压值处被切断

应用:

产品类型:

虽然电子系统和集成电路需要电源才能运行,但这种供电可能成为浪涌的来源,有较高的致命损害风险。这些恶性事件可能是由电力线通电、不稳定,甚至是雷击残留所致。

我们的TVS系列旨在通过将浪涌电压箝位到尽可能低且与系统兼容的水平,来保护电子系统和集成电路免受电气过应力 (EOS) 的影响。
TVS二极管是保护系统免受电源浪涌影响的更佳解决方案,不会使线路短路,并确保系统全面运行。

与金属氧化物压敏电阻器 (MOV) 相比,TVS器件具有诸多优势 - 因为没有老化效应,可以确保长期稳定性和更高的可靠性。
因为拥有更高的品质和稳健性,TVS设计优于齐纳解决方案,后者的额定直流电流较低,并不适合浪涌抑制应用。

凭借用于晶片的平面工艺和稳定的卡夹组件,该器件能够兼具高端电路对低漏电流和高结温的要求,并保持长期的可靠性和稳定性。

只有我们的TVS系列才能在各种温度下提供完全功率能力,而竞争对手都会面临功率降额、保护水平下降的情况。

我们的新一代TVS二极管提供出色的功率密度,专为各种工业和汽车应用而设计。

了解我们的产品组合

基于10/1000µs抗浪涌能力的TVS产品映射,展示了我们的功率能力路线图

TVS产品映射

微型封装的TVS产品映射,支持IEC61000-4-5浪涌标准

微型封装的TVS

优势

  • 根据浪涌输入和应用的最大电压,快速选择通过工具计算出的最佳TVS。
  • 易于使用:根据目标环境温度,点击几下就能选择最合适的TVS。
  • 轻松访问:在桌面上下载TVS模拟器

TVS模拟器

使用意法半导体的智能选择工具和电热模型获得合适的保护措施

特色应用笔记

了解我们的瞬态电压抑制器 (TVS) 的PSPICE电热模型。

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

Choose design tool:
Power Management Design Center

Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
Choose type:
DC/DC
AC/DC
太阳能电池充电器
Power Management Design Center

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:
DC/DC
AC/DC
Power Management Design Center

Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs
Power Management Design Center

Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node
Choose design tool:
Thermal-electrical Simulators for Components

AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
Search and sort suitable devices
Thermal-electrical Simulators for Components

Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
Search and sort suitable devices
Thermal-electrical Simulators for Components

STPOWER Studio

Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties
Thermal-electrical Simulators for Components

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations
Thermal-electrical Simulators for Components

TVS Simulator

Specify system ratings and surge waveform
Search and sort suitable devices
Thermal-electrical Simulators for Components

Estimate

Build simple schematics and firmware inputs in minutes
Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Choose design tool:
Signal Conditioning Design Tool

Active Filters

Handles multi-stage-designs and common topologies
Returns circuit component values
Provides gain, phase and group delay graphs
Low Pass, High Pass and Band Pass
Signal Conditioning Design Tool

Comparators

Handles most common configurations
Returns circuit components values
Provides I/O signal waveforms
Inverting, Non Inverting, Window
Signal Conditioning Design Tool

Low side Current Sensing

Returns circuit component values
Provides current error graphs
Signal Conditioning Design Tool

High side Current Sensing

Provides current error graphs.
Help to select the right High side current sensing and shunt devices.
Choose design tool:
NFC/RFID Calculators

NFC Inductance

Input geometry and substrate properties
Get antenna impedance
NFC/RFID Calculators

UHF Link Budget

Enter forward and reverse link characteristics
The tool returns link budget estimate
NFC/RFID Calculators

NFC Tuning Circuit

Enter antenna parameter and matching target
Select the topology of the matching network
The tool returns component values for the desired design targets