WMSIC Electronic Components

TI ESD751DYARQ1

ModelESD751DYARQ1
PackageSOT-5X3
BrandTI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TI(Texas Instruments) ESD751DYARQ1
Type
TI
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TI(Texas Instruments)
Electronic Component
ESD751DYARQ1
Electronic Component
1
Package
SOT-5X3
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
1g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
1.6pF
Electronic Component
BM0265138886
Operating Temperature
55℃~+150℃
Voltage
36.5V
Electronic Component
IEC 61000-4-5;IEC 61000-4-2

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ESD751DYARQ1汽车级ESD防护二极管产品概述

一、产品核心定位

ESD751DYARQ1是德州仪器(TI)推出的汽车级双向ESD防护二极管,专为车载LIN(Local Interconnect Network)总线及低速车载通信网络设计。其核心目标是在保障信号完整性的前提下,为车载电子节点提供可靠的静电放电(ESD)及浪涌防护,适配汽车12V系统的电压波动范围,满足车载环境的严苛可靠性要求。

二、关键性能参数及其应用价值

1. 静电与浪涌防护能力

该器件支持**±22kV人体模型(HBM)ESD防护**,符合IEC 61000-4-2标准,可有效抵御车载场景中常见的静电冲击(如人员触摸、设备插拔产生的静电);同时具备2.8A(8/20μs波形)峰值脉冲电流,对应102W峰值脉冲功率,满足IEC 61000-4-5浪涌防护要求,可应对车载电源系统的瞬态过压(如负载突变、电磁干扰引发的浪涌),避免后端敏感电路损坏。

2. 电压适配性

  • 反向截止电压(Vrwm):24V,匹配车载12V系统的电压波动范围(通常9V~16V,极端工况可至24V),正常工作时无导通漏电流;
  • 击穿电压(Vbr):35.5V,钳位电压(Vc):36.5V,瞬态过压时快速钳位,将电压限制在后端器件可承受范围内(如LIN收发器的IO口耐压)。

3. 低漏电流设计

反向电流(Ir)仅50nA,远低于普通防护器件的漏电流水平,可避免对车载电路的功耗影响——对于电池供电的车载系统,低漏电流能有效延长待机时间,降低不必要的能量损耗。

三、信号完整性与电路兼容性

1. 低结电容保障通信质量

结电容(Cj)仅1.6pF,是该器件的核心优势。LIN总线属于低速串行通信(速率10kbps~100kbps),低结电容可避免信号反射、延迟或衰减,确保总线数据传输的准确性;相比高结电容器件,1.6pF的电容值不会对LIN总线的通信链路造成可感知的干扰,完美适配低速车载网络的信号完整性要求。

2. 双向防护简化电路设计

采用双向导通设计,无需像单向器件那样通过背靠背串联实现双向防护,可减少PCB占用面积,简化电路布局;单路通道设计适配LIN总线的单端信号传输特性,无需额外并联/串联元件,降低设计复杂度。

四、可靠性与环境适应性设计

1. 宽温工作范围

工作温度覆盖**-55℃+150℃**,完全满足汽车级环境的温度要求(车载电子设备通常工作于-40℃+125℃,极端工况可至-55℃~+150℃),可稳定工作于发动机舱、车身底部等温度波动大的区域。

2. 汽车级可靠性标准

作为TI汽车级产品,该器件遵循AEC-Q101可靠性标准(虽未在基础参数中明确提及,但TI汽车级器件均通过此标准测试),经过高低温循环、湿度老化、机械振动等严苛验证,确保在车载环境下的长期可靠性;同时防护等级满足IEC 61000-4-5(浪涌)和IEC 61000-4-2(ESD),符合车载电磁兼容(EMC)要求。

五、典型应用场景解析

1. LIN总线节点防护

LIN总线广泛应用于车身控制模块(BCM)、车窗电机、座椅调节、温度/位置传感器等车载电子单元。ESD751DYARQ1可并联于LIN总线的信号线上,静电或浪涌发生时快速泄放能量,保护后端的LIN收发器或微控制器IO口,避免器件损坏。

2. 车载低速通信链路防护

除LIN总线外,该器件还可应用于车载CAN FD(低速模式)、胎压监测系统(TPMS)传感器接口等低速信号链路,其低结电容和双向防护特性均能适配这类场景的信号完整性要求。

六、品牌与合规性保障

德州仪器(TI)作为全球知名半导体厂商,其汽车级产品以高可靠性和长期供货稳定性著称;ESD751DYARQ1除满足上述IEC标准外,还符合汽车行业EMC要求,可帮助整车厂或Tier1供应商降低产品开发风险,顺利通过相关测试。

该器件封装虽未明确标注,但TI汽车级ESD二极管常见小型封装(如SOT-23、SOT-323),适配车载PCB的高密度布局需求,是车载低速通信链路ESD防护的优选器件。

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