【应用】汽车级TVS管UAT4P系列,用于车载供电系统的抛负载保护,能抗350ms脉冲功率
在汽车电子系统上,由于不同原因造成各种的脉冲中,抛负载是常见而且也是危害比较大的一种现象。所谓抛负载,就是当汽车引擎正在运转,发电机正向汽车的电源线输送电流时,如果电池突然断开,就会产生较高的浪涌电压。其特点是浪涌电压高、脉冲宽度宽、持续时间长,如果不加以有效防护,会对后极电路产生致命的损坏。
如图1所示,就是对抛负载保护原理的直观的模拟,即通过在电源上并专用的抛负载保护 TVS实现。如果不对电路做出相应的防浪涌整改,很容易造成电路回路中的电子器件因过压导致损坏。由于抛负载的浪涌最大脉宽一般在350-400ms左右,同时对应脉冲峰值电压也比较高,12V系统最大高达87V左右,24V系统最大高达174V左右,所以市场上常见TVS(只能抗10/1000us的瞬间脉冲)不能满足其保护要求,需要在电源端口并联一颗针对抛负载保护的专用TVS,其能抗宽脉冲浪涌(350毫秒的脉宽),功率也比较大且满足车规要求。
图1
针对以上抛负载保护需求,电安科技推出单双向、宽脉冲功率、车规级TVS UAT4P系列。其应用优势如下:
1、专门针对抛负载保护的设计,能抗350ms脉冲功率,插件P600封装,功率6600W;
2、有单/双向产品可供选择,满足不同电路应用需求;
3、峰值电流高,最高可达204A,耐冲击能力更强;
4、具有漏电流小,响应时间快等优点,同时满足AEC-Q101认证要求;
5、国产器件,交期价格有优势;
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本文由一一转载自电安科技,原文标题为:【应用】汽车级TVS管UAT4P系列,插件P600封装,用于车载供电系统的抛负载保护,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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电安科技公司及产品介绍
描述- 电安科技(DA TECHNOLOGY)是一家专注于新材料和新能源电路保护的科技企业,产品应用于电动汽车、汽车电子、LED照明等领域。公司拥有专业的研发团队和丰富的产品线,包括过流保护器件、过压保护器件、瞬态电压抑制器(TVS)等。电安科技致力于为客户提供安全可靠的电路保护方案。
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IT(mA)
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PD(W)
|
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Uni/Bi
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Package
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5V
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7V
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Uni
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型号- 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Ultra-Automotive TVS (UAT)4P
描述- 本资料介绍了Ultra-Automotive TVS(UAT)4P系列瞬态电压抑制器(TVS)的特性。该产品适用于汽车电子设备,具有玻璃钝化芯片、单向或双向单元、低漏电流、优异的钳位能力和快速响应时间等特点。资料提供了最大额定值、热特性、电气特性、I-V曲线特性、焊接工艺和包装信息。
型号- UAT4P28A,UTA4PXXX,UAT4P26A,UAT4P36CA,UAT4P24A,UAT4P36A,UAT4P22A,UAT4P20A,UAT4P33CA,UAT4P40CA,(UAT)4P,UAT4P28CA,UAT4P-XXX-A,UAT4P,UAT4P22CA,UAT4P20CA,UAT4P33A,UAT4P26CA,UAT4P24CA,UAT4PXXXA,UAT4P40A,UAT4P30A,UAT4P-XXX-CA,UAT4P30CA,UAT4PXXXCA
【选型】扬杰科技车规级产品SMBJ系列可用于车载系统的保护,与威世SMBJ系列可相互替
通过扬杰科技和威世的单相TVS管SMBJ14AQ与SMBJ14A的供电参数、性能参数、环境参数以及引脚封装尺寸对比,可以看出两者尺寸完全兼容可以互换,同时二者可相互兼容可以很好缓解目前国内外货源紧张的情况,保证产品正常的生产。
功率高达15000W性价高的TVS二极管在汽车电子上的应用
描述- 本文介绍了高功率TVS二极管在汽车电子领域的应用,特别是针对抛负载保护。文章详细解释了抛负载的概念、ISO7637标准下的测试波形和电压,以及TVS二极管在抛负载保护中的应用电路。文中还提供了针对24V和12V系统TVS二极管的选型计算和推荐型号,并介绍了SM6S/SM8S/SM8T系列和UAT2P/UAT3P/UAT4P系列TVS二极管的产品特点、优势和应用领域。
型号- UAT2P系列,UAT4P系列,UAT3P系列,UAT2P36CA,UAT2P24CA,UAT4P,UAT3P,UAT4P36CA,UAT2P,SM8S36CA,SM8S24CA,UAT4P24CA,SM8T,SM6S,UAT3P36CA,SM8T24CA,SM8S,UAT3P24CA,SM8S系列,SM6S系列,SM8T系列,SM8T36CA
【产品】超级汽车级TVS管(UAT)3P系列,反向电压15V至250V,峰值耗散功率可达12000W
电安科技推出的(UAT) 3P 型超级汽车级TVS管,具有低漏电流、卓越的钳位能力及快速的响应时间等特性。且在TA=25℃、Tp=10/1000μs波形下的峰值耗散功率可达12000W。器件的工作结温和存储温度范围宽至-50~+150°C,反向电压15至250V,且经AEC-Q101测试合格,主要用于汽车电子应用。
【产品】超级汽车级TVS管(UAT)4P型,反向电压15至250 V,反向漏电流最大值仅2uA
电安科技推出的(UAT)4P型超级汽车级TVS管,在TA=25℃、Tp=10/1000μs波形下的峰值耗散功率为6600W。在8.3ms单半正弦波下,峰值正向浪涌电流最大额定值为400A。反向漏电流最大值仅2uA,具有低漏电流的优良特性。器件的工作结温和存储温度范围宽至-50~+150°C,耐高/低温性能出色,主要用于汽车电子等应用。
电安科技汽车级抛负载保护TVS介绍
描述- 本文介绍了电安科技汽车级抛负载保护TVS产品。内容包括抛负载现象、ISO7637 5a波形和电压标准、TVS应用电路、24V和12V系统TVS选型计算,以及SM6S/SM8S/SM8T和UAT2P/UAT3P/UAT4P系列TVS产品特点和应用领域。
型号- UAT2P36CA,UAT2P24CA,UAT4P,UAT3P,UAT4P36CA,UAT2P,SM8S24CA,SM8S36CA,UAT4P24CA,SM8T,SM6S,SM8T24CA,UAT3P36CA,SM8S,UAT3P24CA,SM8T36CA
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加工精度:精密平面磨床正负0.002;铣床正负0.02,ZNC放电正负0.01。CNC加工材料:铝、钢、聚合物等材料。专注于半导体行业、医疗器械、汽车行业、新能源行业、信息技术行业零部件加工。
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制造铜、铝、铁、不锈钢、合成树脂及各种材质的长短轴类零件,加工五金件尺寸范围:外径:2~100mm ,长度2~100mm ;精度:±0.005um;表面光洁度:可达0.02Ra。拥有50台全进口的五轴设备,通过50项专利认证。
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