Texas Instruments ISO774x/-Q1四通道数字隔离器

Texas Instruments ISO774x/ISO774x-Q1 四通道数字隔离器是高性能四通道数字隔离器，隔离等级为 5000V_RMS（DW 封装）和 2500V_RMS（DBQ 封装），符合 UL 1577。这些器件具有增强的绝缘等级，符合VDE、CSA、TUV和CQC标准。这些器件在隔离CMOS或LVCMOS数字I/O的同时，具有高抗电磁干扰性低辐射和低功耗。每个隔离通道都有一个由二氧化硅(SiO₂)绝缘隔栅分开的逻辑输入和输出缓冲器。这些器件配有启用引脚，可用于将各自输出放在高阻抗中，实现多主器件驱动应用，而且能够降低功耗。ISO7740/ISO7740-Q1 器件全部四个通道都在同一个方向，ISO7741/ISO7741-Q1 器件有三个正向通道和一个反向通道，ISO7742/ISO7742-Q1 器件有两个正向通道和两个反向通道。ISO774x/ISO774x-Q1器件符合汽车应用类AEC-Q100标准。

特性

Signaling rate of up to 100Mbps
Robust isolation barrier
- >100-year projected lifetime at 1500V_RMS working voltage
- Up to 5000V_RMS isolation rating
- Up to 12.8kV surge capability
- ±100kV/µs typical CMTI
2.25V to 5.5V wide supply range
2.25V to 5.5V level translation
Default output high and low options
-55°C to +125°C wide temperature range
Low power consumption at typical 1.5mA per channel @ 1Mbps
The low propagation delay of 10.7ns (typ.) (5V supplies)

High CMTI (±75kv/µs typ.)
Robust Electromagnetic Compatibility (EMC)
- System-level ESD, EFT, and surge immunity
- ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier
- Low emissions
Isolation barrier life: >40 years
Wide-SOIC (DW-16) and QSOP (DBQ-16) package options
Safety-related certifications
- DIN VDE V 0884-11:2017-01
- UL 1577 component recognition program
- CSA, CQC, and TUV certifications