维安高可靠性WSxxP30SMC(-B)-AT系列车规级TVS，覆盖汽车12V/24V电源系统
汽车行业经历了百年发展历史，在传统燃油汽车之外，随着人们环保意识的增强，新能源汽车成为了发展低碳经济的必然选择，也是未来汽车产业发展的必然趋势。新能源又称非常规能源，是指传统能源之外的各种能源形式。新能源汽车中电子控制、车载娱乐多媒体、导航、车载通信等电子系统的增多使得电子线路的防护端口越来越多，兼之汽车端口电磁环境较消费电子更加恶劣，作为新能源汽车的核心部件，三电系统的浪涌防护不仅关系着整车性能，还与行车安全息息相关。
维安(WAYON) WSxxP30SMC(-B)-AT系列产品是一款高可靠性的车规级TVS产品，作为一种钳位型的过电压保护器件，使用时可并联在被保护电路两端，具有精确导通、快速响应、浪涌吸收能力强、可靠性高等特点。适用于车身电源、导航仪表、车灯等端口的瞬时过电压防护。WSxxP30SMC(-B)-AT系列产品封装形式为常规SMC（8.0×6.0×2.5mm）封装，其较小尺寸可以满足汽车多部位的瞬时过压防护。
TVS工作原理：
当电路处于平稳正常工作状态时，TVS器件反向截止无动作，此时其高阻保证几乎无电流流经TVS，不影响电路正常工作。当电路中有超过电路正常工作电压的瞬时过电压时，TVS二极管发生雪崩，提供给瞬时电流一个超低电阻通路，同时吸收大电流，将其两端间的电压钳位在预定数值VC（Clamping Voltage）上，从而保护后级电路免受瞬态高能量的冲击而损坏。当瞬时过电压结束后，TVS自动恢复反向截止状态，使整个回路进入正常电压。
Operation during a Surge
作为AC或DC电压端口的防护器件，TVS针对不同电压应用端口需要遵循不同的浪涌测试标准，例如针对静电防护的IEC 61000-4-2标准、针对电源口防护的IEC 61000-4-5标准、针对信号口防护的ITU K21标准等。而车规级TVS由于特殊的汽车应用环境，对其的过压防护需要遵循ISO 7637-2标准及ISO 16750-2标准：
汽车电源线波动电压
车规级TVS除了针对汽车应用环境有特殊的过压测试标准，在可靠性方面更要求需要通过AEC-Q101标准《AEC-Q101 Failure Mechanism Based Stress Test Qualification for Discrete Semiconductors in Automotive Applications》，其中信赖性试验相比非车规级产品具有更加严苛的要求：
维安车规级TVS WSxxP30SMC(-B)-AT系列产品具有卓越的抗瞬时过压能力，及优秀的AEC-Q101信赖性，为车规级电路应用提供稳定可靠的安全防护。目前该系列产品电压覆盖汽车12V电源系统和24V电源系统，满足汽车客户的广泛需求。该产品系列参数规格如下：
WSxxP30SMC(-B)-AT系列抗抛负载能力：
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本文由ll转载自维安WAYON公众号，原文标题为:新能源汽车的“隐形护卫”,揭开维安Auto TVS的神秘面纱，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。
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产品型号
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品类
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Package
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Configuration
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Type
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ESD
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VDS(V)
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Vgs Max(V)
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ID at 25℃(A)Max.
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VGS(th)(V)-Typ.
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Rds(on)Vgs=10V
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Rds(on)Vgs=10V,(mΩ)Max.
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Rds(on) Vgs=4.5V,(mΩ)Typ.
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Rds(on)Vgs=4.5V,(mΩ)Max.
|
Ciss (pF)Typ.
|
Coss (pF)Typ.
|
Crss (pF)Typ.
|
|
WMB70P02TS
|
Trench P Channel Power MOSFET
|
PDFN5*6-8L
|
Single
|
P
|
NO
|
-20
|
±12
|
-70
|
-0.65
|
3.1
|
4.1
|
3.5
|
4.8
|
4599
|
668
|
577
|
选型表 - WAYON 立即选型
WAYON自恢复保险丝选型表
WAYON（维安半导体）提供自恢复保险丝选型：IH @25℃（A）:0.01-14，IT @25℃（A）：0.05-23.8，Vmax（V）：6-600，Imax（A）：1-100，Rmin（Ω）：0.0005-70，Pd Typ（W）：0.26-4.6.
|
产品型号
|
品类
|
IH @25℃（A）
|
IT @25℃（A）
|
Vmax（V）
|
Imax（A）
|
Max Time to Trip Current（A）
|
Max Time to Trip Time （S）
|
Pd Typ（W）
|
Rmin（Ω）
|
R1 max（Ω）
|
UL
|
TUV
|
Package
|
|
LP-TSM001/60
|
自恢复保险丝
|
0.01
|
0.05
|
60
|
10
|
0.20
|
1.00
|
0.5
|
15.000
|
200.000
|
×
|
×
|
0603
|
选型表 - WAYON 立即选型
Preferred Power Solution: Wayon VDMOS Offers High Versatility and Durability
In VDMOSFET design, Wayon focuses on optimizing the contradiction between breakdown voltage and on-resistance, enhancing breakdown voltage while maintaining low on-resistance, and reducing Qg and switching losses. For high-reliability applications such as industrial control, Wayon developed a high-quality silicon nitride passivation layer process that significantly improves device reliability.
产品 发布时间 : 2024-09-30
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