WMSIC Electronic Components

TJA1028DT/0Z TJA1028DT

ModelTJA1028DT/0Z
PackageSO-8
BrandNXP
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 25+

Available for RFQ

Technical data

Product details

15 specifications

Core information

Product name
NXP TJA1028DT / 0Z
Type
NXP
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
TJA1028DT/0Z
Electronic Component
1
Package
SO-8
Electronic Component
LIN Transceiver
Electronic Component
0.186g
Electronic Component
1
Features
TXD; Bus; Low Power
Electronic Component
BM0264332637
Electronic Component
Electronic Component
Electronic Component
2500

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

TJA1028DT/0Z 产品概述

一、概述

TJA1028DT/0Z 是恩智浦(NXP)推出的一款集成化 LIN Mini System Basis 芯片,集成了 LIN 收发器和内部电压稳压器,封装为 SO-8,面向汽车车身电子和车载控制单元(ECU)的低速串行通信应用。器件在提高系统可靠性和简化电源管理方面具有明显优势,适配车载环境的瞬态和干扰要求。

二、主要功能特性

  • 欠压检测(UVLO):监测电池电压,确保在供电异常时采取保护措施,防止系统误动作或损坏。
  • TXD 超时保护:当 TXD 引脚长时间保持占空或故障时,自动释放总线以避免持续主导态,保护网络稳定性。
  • 总线唤醒(Bus Wake-up):支持通过 LIN 总线唤醒系统,节省整车待机功耗并实现远程唤醒功能。
  • 低功耗模式:在待机或关闭状态下进入低功耗模式,显著降低静态电流,符合车载节能要求。
  • 热关断保护(Thermal Shutdown):在器件过热或异常工况下自动关断输出,防止器件和系统损坏。

三、功能模块与行为

TJA1028 将传统 LIN transceiver 与低噪声线性稳压器及监控电路集成在单芯片中。器件包含:电池输入与反向保护、稳压器输出用于 MCU/外围供电、LIN 收发单元(差分驱动与接收)、故障检测与保护逻辑(UVLO、短路检测、热关断)以及低功耗/唤醒控制。该集成化设计减少了外部元件数量和 PCB 占用空间,有利于模块化设计。

四、应用场景

  • 汽车车门控制模块、车内照明、座椅/后视镜控制单元等车身电子设备;
  • 需要节能待机与远程唤醒功能的网关或分布式控制单元;
  • 对可靠性、抗瞬态干扰有较高要求的低速车载网络节点。

五、设计注意事项

  • 对稳压器输出与电源输入需放置合适的去耦电容,遵循典型应用电路的布局要求;
  • LIN 总线端需考虑终端阻抗与瞬态抑制(TVS)保护以增强抗干扰能力;
  • TXD/RXD 与 MCU 接口电平匹配与滤波,确保超时保护与唤醒功能正确工作;
  • 在高功率或热敏感应用中,留意散热路径并遵守封装功耗限制,以避免触发热关断。

六、优势总结

集成化的 TJA1028DT/0Z 降低 BOM 成本和 PCB 面积,提供针对汽车应用的全面保护和电源管理功能。结合欠压检测、TXD 超时、总线唤醒、低功耗与热关断等特性,能够提升整车网络的稳定性与可靠性,是车身电子和车载通信节点的理想选择。

封装信息:SO-8,便于常见 PCB 组装与标准化生产。品牌:NXP(恩智浦)。若需进一步的电气参数、引脚分配或参考电路图,建议参阅官方数据手册以获得详细规范与典型应用。

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