WMSIC Electronic Components

TJA1044BT/0Z TJA1044BT

ModelTJA1044BT/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 Electronic Component

Available for RFQ

Technical data

Product details

14 specifications

Core information

Product name
NXP TJA1044BT / 0Z
Type
NXP
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
TJA1044BT/0Z
Electronic Component
1
Package
SO-8
Electronic Component
Other Interface
Electronic Component
0.186g
Electronic Component
1
Electronic Component
BM0265234705
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.

TJA1044BT/0Z 产品概述

一、概述

TJA1044BT/0Z 是恩智浦(NXP)推出的一款高性能 CAN 收发器,面向车载与工业网络节点。器件支持最高 5 Mbps 的高速 CAN 总线通信,工作于单一电源 4.5 V 至 5.5 V 范围内,采用 SO-8(SOIC-8)封装,适合空间受限的控制单元、网关与节点设计。器件集成故障安全和唤醒功能,便于实现低功耗待机与可靠的总线连通性。

二、主要特性

  • 支持高速 CAN(兼容 ISO 11898-2)最高数据率 5 Mbps。
  • 单电源工作,电源范围 4.5 V–5.5 V,便于与标准车载 5 V 总线兼容。
  • 故障安全(Fail-safe)设计:提供总线短路、开路及接地/电源短路的保护策略,提高节点容错能力。
  • 唤醒功能(Wake-up):支持低功耗待机模式并能通过总线活动或唤醒引脚唤醒,降低整车静态功耗。
  • 封装:SO-8(SOIC-8)标准封装,利于批量生产与过回流焊接工艺。

三、引脚与功能概要

典型引脚包括 VCC、GND、CAN_H、CAN_L、TXD、RXD 及唤醒/待机控制引脚(STB 等)。TXD 为主机输入,RXD 为收发器向主机输出,唤醒/待机引脚用于进入/退出低功耗模式。具体引脚定义与时序请参考官方数据手册。

四、典型应用

  • 汽车电子:车身控制模块(BCM)、车门模块、照明控制、车载网关等。
  • 工业网络:机器控制器、传感器节点与现场总线接口。
  • 通用嵌入式系统:需要长线 CAN 通信且要求低功耗与高可靠性的场合。

五、设计与布局建议

  • 总线两端各使用 120 Ω 终端电阻,并考虑在近端放置 TVS 防浪涌二极管及共模电感以抑制干扰与瞬变。
  • 在 VCC 引脚附近放置低 ESR 去耦电容,减少供电噪声影响。
  • 总线线长与走线应尽量对称、靠近地层布线,减小共模干扰。
  • 在系统设计阶段验证唤醒源(总线活动、外部中断等)与功耗行为,确保待机功耗满足整车要求。

六、可靠性与合规

TJA1044 系列针对车载环境进行了增强设计,包含热关断、短路保护与电磁兼容(EMC)考虑。用于量产前建议参考 NXP 官方数据手册和汽车级测试规范(如 AEC-Q100 等)进行完整验证与测试。

若需详细电气特性、时序图及典型应用电路,请参阅 NXP 官方数据手册或提供具体设计需求,我可以帮助进一步解读与优化方案。

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