ISO1641DWR

The ISO1641DWR is a highly versatile isolated interface IC designed for robust and high-speed bidirectional communication while maintaining excellent isolation. With hot-swappable SDA and SCL pins, unidirectional GPIO channels, and impressive isolation capabilities, it is well-suited for applications requiring secure data transfer. Its wide supply voltage range, open-drain outputs, and package options offer flexibility in various system configurations. Furthermore, the device's exceptional isolation barrier ensures enhanced electromagnetic compatibility, making it a reliable choice for industrial and automotive applications where data integrity and isolation are paramount.

·Isolated I2C Buses

·Isolated I2C and SPI Buses

·SMBus and PMBus Interfaces

·Power Over Ethernet (PoE)

·Motor Control Systems

·Battery Management

The ISO1640, ISO1641, ISO1642, ISO1643 and ISO1644 (ISO164x) devices are hot swappable, lowpower, bidirectional isolators that are compatible with I²C interfaces. The ISO164x supports UL 1577 isolation ratings of 5000 V_RMS in the 16-DW package, and 3000 V_RMS in the 8-D package. Each I²C isolation channel in this low emissions device has a logic input and open drain output separated by a double capacitive silicon dioxide (SiO₂) insulation barrier. The ISO1642 and ISO1643 intregrates 2 unidirectional CMOS isolation channels, while the ISO1644 intregrates 3 unidirectional CMOS isolation channels which can be used for static GPIO isolation or to isolate a Serial Peripheral Interface (SPI) bus. This family includes basic and reinforced insulation devices certified by VDE, UL, CSA, TUV and CQC. The ISO1640/2/3/4 have two isolated bidirectional channels for clock and data lines and the ISO1641 has a bidirectional data and a unidirectional clock channel. The ISO164x family integrates logic required to support bidirectional channels, providing a much simpler design and smaller footprint when compared to optocoupler-based solutions.

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