Automotive-grade TVS diode UATxP series, P600 package, used for load dump protection of vehicle power supply system

2021-09-21 电安科技
Automotive-grade TVS diode,UATxP,电安科技 Automotive-grade TVS diode,UATxP,电安科技 Automotive-grade TVS diode,UATxP,电安科技 Automotive-grade TVS diode,UATxP,电安科技

In automotive electronic systems, among the various pulses caused by different reasons, load dump is a common and more harmful phenomenon. The so-called load dump is when the car engine is running and the generator is delivering current to the car's power line. If the battery is suddenly disconnected, a higher surge voltage will be generated. It is characterized by high surge voltage, wide pulse width, and long duration. If it is not effectively protected, it will cause fatal damage to the circuit.

 

As shown in Figure 1, it is an intuitive simulation of the principle of load dump protection, which is realized by a dedicated load dump protection TVS on the power supply. If the circuit is not corrected for surge protection, it is easy to cause damage to the electronic devices in the circuit loop due to overvoltage. Since the maximum pulse width of the load dump surge is generally about 350-400ms, and the corresponding pulse peak voltage is also relatively high. The maximum voltage of the 12V system is as high as 87V, and the maximum of the 24V system is as high as 174V. Therefore, nominal TVS diode (designed and measured by 10/ 1000us pulse) cannot meet this protection requirements. A dedicated TVS for load dump protection needs to be connected in parallel to the power port. It can resist wide pulse surge (350 millisecond pulse width), and the power is relatively large and meets the requirements of vehicle regulations.

 

Figure 1:

In response to the  load dump protection of vehicle power supply system,DA Technology has launched a Uni and Bidirectional Unit, wide-pulse power, automotive-grade TVS UATxP series.


Features

1. Designed specifically for load dump protection, can resist 350ms pulse power, P600 package

2. Easy prototype for EE designer,UATxP(x range from 2-4,means resistance according to ISO7637 benchmark,for example,UAT4P means it can help designer to pass ISO7637 174V/4Ω load dump requirements)

3. High peak current, stronger impact resistance;

4. Low leakage current, AEC-Q101 qualified

5. Competitive solution for load dump protection requirements.


授权代理商:世强先进(深圳)科技股份有限公司
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本文由郭昊旻转载自电安科技,原文标题为:[Application] Automotive-grade TVS diode UATxP series, P600 package, used for load dump protection of vehicle power supply system,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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某客户在选用一款汽车空调系统保险丝:10A以上,DC 60V,分断能力500A以上,阻抗低;推荐国产电安科技SF331A015,优势:尺寸11x4.5mm,最高DC电压72V,分断能力为600A;超低冷态电阻 0.35mΩ/80A等。

2022-08-04 -  器件选型 代理服务 技术支持 采购服务

电安科技PPTC保险丝选型表

电安科技提供了PPTC保险丝系列产品,种类齐全。产品可用在汽车电子、工业,通讯、新能源等领域。

产品型号
品类
Vmax(V)
Imax(V)
IH(A)
IT(A)
PD(W)
Ri min(Ω)
Package
0603N0040/24F000
自恢复保险丝
24V
20V
0.04A
0.12A
0.5W
0603

选型表  -  电安科技 立即选型

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品牌:电安科技

品类:TVS Protection Array

价格:¥0.3770

现货: 48,000

品牌:电安科技

品类:Square Surface Mount Fuse

价格:¥0.2360

现货: 24,016

品牌:电安科技

品类:Square Surface Mount Fuse

价格:¥0.3146

现货: 21,314

品牌:电安科技

品类:Transient Voltage Suppressor

价格:¥0.2521

现货: 13,000

品牌:电安科技

品类:Square Surface Mount Fuse

价格:¥5.9774

现货: 6,775

品牌:电安科技

品类:Ceramic Chip Fuse

价格:¥0.2080

现货: 6,150

品牌:电安科技

品类:Ceramic Chip Fuse

价格:¥0.1297

现货: 6,110

品牌:电安科技

品类:Cartridge fuse

价格:¥0.3055

现货: 5,330

品牌:电安科技

品类:Ceramic Chip Fuse

价格:¥0.2730

现货: 5,012

品牌:电安科技

品类:Square Surface Mount Fuse

价格:¥0.2360

现货: 2,058

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ESD防护解决方案

整体外形尺寸小至0.6*0.3*0.3mm (DFN0603),工作电压范围覆盖2.5V~36V,电容值低至0.2pF,浪涌能力最高可达240安培,静电等级可达空气放电、接触放电±30KV。提供免费浪涌测试仪、静电测试仪测试。

提交需求>

通用与车载ESD静电测试

测试等级:空气放电30KV±5%;接触放电30KV±5%,适用标准:GB/T 17626.2、IEC61000-4-2、ISO10605、GB/T 19951;给用户产品出电路保护设计方案建议及整改。点击预约,支持到场/视频直播测试,资深专家全程指导。

实验室地址: 深圳/上海 提交需求>

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授权代理品牌:加工与定制

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