Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
Device HBM ESD Classification Level 3A
Device CDM ESD Classification Level C6
Isolated Bidirectional, I2C Compatible, Communication
ISO1640-Q1: Bidirectional SDA and SCL
Supports up to 1.7 MHz Operation
Robust isolation barrier:
>100-year projected lifetime at 500 VRMS working voltage
Up to 3000 VRMS isolation rating
Up to 5 kV surge capability
±100 kV/µs typical CMTI
Supply range: 3 V to 5.5 V (Side 1) and 2.25 V to 5.5 V (Side 2)
Open-Drain Outputs With 3.5-mA Side 1 and 50-mA Side 2 Sink Current Capability
Max capacitive load: 80 pF (Side 1) and 400 pF (Side 2)
8-SOIC (D-8) Package Options
–40°C to +125°C Operating Temperature
±8 kV IEC-ESD 61000-4-2 contact discharge protection across isolation barrier
Safety-Related Certifications (planned):
UL 1577 Component Recognition Program
DIN V VDE V 0884-11
IEC 60950-1, IEC62368-1, IEC 61010-1, IEC 60601-1 and GB4943.1-2011 certifications
Description for the ISO1640-Q1
The ISO1640-Q1 (ISO164x-Q1) device is a hot swappable, low-power, bidirectional isolator that is compatible with I2C interfaces. This digital isolator supports UL 1577 isolation ratings of 3000 VRMS in the 8-D package. Each 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. This family includes devices certified by VDE, UL, CSA, TUV and CQC. The ISO1640-Q1 has two isolated bidirectional channels for clock and data lines. ISO1640-Q1 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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