Texas Instruments ISO7820/ISO7820F 双通道数字隔离器

德州仪器 ISO7820/ISO7820F 双通道数字隔离器是高性能双通道数字隔离器，具有 8000V_PK 隔离电压。该器件还通过了 VDE、CSA 和 CQC 增强隔离认证。该隔离器在隔离 CMOS 或 LVCMOS 数字 I/O 的同时，有高抗电磁干扰性低辐射和低功耗。每个隔离通道的逻辑输入和输出缓冲器均由二氧化硅 (SiO₂)绝缘隔栅分离开来。ISO7820 有两个正向通道，无反向通道。如果出现输入功率或信号损失，ISO7820 默认输出“高”电平，ISO7820F 默认输出“低”电平。当与隔离电源配合使用时，该器件可防止数据总线或其他电路上的噪声电流进入局部系统接地并干扰或损坏敏感电路。

特性

Up to 100Mbps signaling range
2.25V to 5.5V wide supply range
2.25V to 5.5V level translation
-55°C to 125°C wide temperature range
Typical 1.7mA per Channel at 1Mbps low power consumption
11ns Typical (5V Supplies) low propagation delay
±100kV/µs industry-leading CMTI
Robust Electromagnetic Compatibility (EMC)
System-level ESD, EFT, and surge immunity
Low emissions
Isolation barrier life: >25 years

Wide body (DW) SOIC-16 package
Safety and regulatory approvals
- 8000V_PK V_IOTM and 2121V_PK V_IORM
- Reinforced isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
- 5.7kV_RMS isolation for 1 minute per UL 1577
- CSA Component Acceptance Notice 5A, IEC 60950-1, IEC 60601-1 and IEC 61010-1 End Equipment Standards
- CQC certification per GB4943.1-2011