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SIT SIT1042ATK/3 SIT1042ATK
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- SIT SIT1042ATK / 3
- Type
- SIT
- Minimum package
- 6000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SIT
- Electronic Component
- SIT1042ATK/3
- Electronic Component
- 1
- Package
- DFN-8(3x3)
- Type
- CAN-FDTransceiver
- Electronic Component
- CAN Transceiver
- Electronic Component
- 0.124g
- Electronic Component
- 1
- Channel Count
- 1
- Features
- ESD; TXD; Low Power
- Electronic Component
- BM0227666520
- Operating Temperature
- 40℃~+150℃
- Operating Voltage
- 4.5V~5.5V
- Operating Current
- 70mA
- Data
- 5Mbps
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SIT1042ATK/3 CAN‑FD 收发器（DFN8 3x3）
一、概述
SIT1042ATK/3 是芯力特（SIT）面向汽车与工业总线的 CAN‑FD 收发器，支持高达 5 Mbps 的数据速率，工作电压范围 4.5V～5.5V，工作温度覆盖宽温区（-40℃～+150℃），满足严苛环境下的可靠通讯需求。器件采用 DFN‑8（3×3 mm）小尺寸封装，适合空间受限的板级设计和高可靠性应用。
二、主要特性
- 类型：CAN‑FD 收发器，向后兼容 CAN 2.0。
- 最大数据速率：5 Mbps，支持高速数据阶段。
- 供电电压：4.5V～5.5V（典型 5V 系统）。
- 工作电流：约 70 mA（典型，正常传输状态）。
- 静态（待机）电流：5 µA（低功耗待机，减少系统能耗）。
- 工作温度：-40℃～+150℃，满足汽车级与工业级可靠性要求。
- 封装：DFN‑8，尺寸 3×3 mm，利于高密度布局。
三、电气参数要点
- VCC 需稳定在 4.5～5.5V，建议在 VCC 引脚靠近器件放置 0.1 µF 旁路电容并接地以抑制瞬态噪声。
- 总线端要求典型 120 Ω 终端电阻，推荐在总线两端各放置一个终端。
- 建议配合共模电感（CMC）与浪涌保护（TVS 二极管）使用，以提高抗干扰与浪涌保护能力。
- 在实际设计中关注传输线阻抗匹配和接地完整性以保证 5 Mbps 下的信号完整性。
四、封装与布局建议
- DFN‑8（3×3）体积小，热性能优良。焊盘设计应参考厂家推荐的焊盘尺寸和焊膏模板，以避免焊接缺陷。
- VCC 与 GND 大焊盘应尽可能靠近器件并通过大量过孔连通底层地平面，以利散热与降低寄生阻抗。
- CAN_H/CAN_L 布线应成对走线，保持恒定差分阻抗（常见 120 Ω），避免走近高频数字线或开关电源干扰源。
五、典型应用场景
- 汽车车身域控制器、智能网关、车载诊断接口（支持 CAN‑FD 高速数据传输）。
- 工业现场总线、自动化控制系统、智能电表与楼宇控制等需宽温、抗干扰的场合。
- 任何需 5V 总线供电且对尺寸与功耗有严格要求的嵌入式 CAN‑FD 设计。
六、注意事项与可靠性
- 器件额定温度最高可达 +150℃，但仍建议在系统级热设计中考虑留有裕量，避免长期在极限温度运行。
- 在高速传输场景下，建议进行信号完整性仿真与 EMI 测试，并根据测试结果调整终端/匹配元件。
- 选型时核对供应链、器件生命周期与封装信息，确保长期量产可得。
SIT1042ATK/3 以其宽温、高速与低静态功耗的特性，适合对可靠性与性能有较高要求的汽车与工业 CAN‑FD 应用。
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