英特锡尔Corporation (NASDAQ: ISIL), a provider of innovative power management and precision analog solutions, introduced the industry’s first radiation tolerant 3.3V controller area network (CAN) transceivers that are fully QML-V qualified and compliant with the ISO11898-2 physical layer standard. The three new ISL7202xSEH CAN transceivers provide reliable serial data transmission between a CAN controller and CAN bus at speeds up to 1Mbps. Up to 120 of Intersil’s ISL7202xSEH transceivers can be connected to a single CAN bus to reduce cabling/harness size, weight and power (SWAP) costs. This weight and mass reduction of up to 18% allows system engineers to add millions of dollars in satellite functionality, and eliminate the extra cabling and tradeoffs associated with current point-to-point interface solutions.
The ISL72026SEH, ISL72027SEH and ISL72028SEH 3.3V CAN transceivers deliver ultra-high performance in the most demanding environments by leveraging Intersil’s proprietary silicon on insulator process, which provides single event latch-up (SEL) and single event burn-out (SEB) robustness in heavy ion environments. With the emergence of all-electric propulsion satellites that maximize payload but take longer to reach final orbit, customers require higher total dose testing for mission assurance. Intersil’s CAN transceivers are low dose rate tested up to 75krad on a wafer-by-wafer basis, and apply single event transient (SET) mitigation techniques to reduce system level bit error rates, providing predictable performance. They are also “cold spare” redundant capable, allowing the connection of additional unpowered transceivers to the CAN bus. This mission critical capability maximizes system life.
ISL7202XSEH系列提供了许多唯一功能：ISL72026Seh包括环回测试能力，允许节点诊断和报告，而系统正在传输数据。它还包括侦听模式功能，同时将接收器活动侦听在总线上的数据侦听数据的同时向驱动器电路供电，然后在收到数据后激活驱动程序。ISL72027Seh还提供了使用VREF引脚的分离终端输出，以提供VCC / 2输出参考。这提高了网络电磁兼容性并稳定了总线电压，防止其在非活动时段期间漂移到高共模电压。ISL72028Seh包括低功耗关闭模式，关闭驱动器和接收器以绘制50UA以进行节电。
欧洲航天局的机载计算机工程师Gianluca Furano说:“在航天器内实现完整的CAN总线协议将是对以前使用的接口协议的重大改进。”“一旦我们采用了全面的CAN总线协议，我们预计卫星将实现合理的质量和功率降低，制造商将有能力增加数百万美元的功能能力。”
“我们的太空飞行客户急于用空间合格的辐射宽容可以收发给更换他们的点对点数据传输解决方案，”Intersil精密产品高级副总裁Philip Chesley说。“ISL7202XSEH设备提供卓越的性能，并满足其卫星有效载荷系统的任务保证需求。”
主要特点和规格
电屏蔽SMD 5962-15228，并符合ISO11898-2
提供4kV人体模型(HBM) ESD保护所有引脚
3.0V至3.6V电源范围，-7V至+ 12V共模输入电压范围，5V容差逻辑输入，以及总线引脚故障保护到轨道+/-20V地面和+/- 18V
冷备设备掉电后，不影响主用设备并联运行
三个可选择的驱动上升和下降时间
上电和断电期间故障公交车I / O
全故障安全接收机:开放，短，终止/无驱动
Hi Z输入允许总线上120个节点和高达1Mbps的数据速率
7mA的低静态电源电流
热关机
75克拉(Si)的低剂量率(0.01rad(Si)/s)辐射耐受
SEL/B免疫达LET 60MeV.cm2/mg
ISL7202xSEH 3.3V CAN收发器可与ISL71590SEH温度传感器、ISL71090SEH或ISL71091SEH电压参考、ISL70444SEH、ISL70417SEH、ISL70218SEH和ISL70227SEH运算放大器、ISL71840SEH多路复用器、和LDO调节器，如ISL75051SEH和ISL75052SEH，以支持卫星有效载荷系统的遥测数据处理，具有优越的辐射耐受性能。
可用性
ISL72026SEH，ISL72027SEH和ISL72028SEH 3.3V现在可以在8铅陶瓷平板封装中提供，是美国商务部出口部门批准5A991.b。它们也可以用模具形式提供。用于每个CAN收发器的评估板 - ISL72026SEHEVAL1Z，ISL72027SEHEVAL1Z和ISL72028SEHEVAL1Z - 可用于评估设备功能和性能。
了下:电力电子提示，电源
