SLLSFC2D December 2020 – September 2021 ISO1640 , ISO1641 , ISO1642 , ISO1643 , ISO1644
PRODUCTION DATA
The ISO1640, ISO1641, ISO1642, ISO1643 and ISO1644 (ISO164x) devices are hot swappable, low-power, bidirectional isolators that are compatible with I2C interfaces. The ISO164x supports UL 1577 isolation ratings of 5000 VRMS in the 16-DW package, and 3000 VRMS 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.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
ISO1640BDISO1641BD | SOIC (8) | 4.90 mm × 3.91 mm |
ISO1640DW ISO1641DW ISO1642DW ISO1643DW ISO1644DW |
SOIC (16) | 10.30 mm × 7.50 mm |
PART NUMBER | ISO164xBD | ISO164xDW |
---|---|---|
Protection Level | Basic | Reinforced |
Surge Test Voltage | 6500 VPK | 10000 VPK |
Isolation Rating | 3000 VRMS | 5000 VRMS |
Working Voltage | 450 VRMS / 637 VPK | 1500 VRMS / 2121 VPK |