The ISO1640-Q1 (ISO164x-Q1) device
is a hot swappable, low-power, bidirectional
isolator that is
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. This family includes basic and reinforced insulation 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.
Device
Information(1)
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
ISO1640BD-Q1 |
SOIC (8) |
4.90 mm × 3.91 mm |
ISO1640DW-Q1 |
SOIC (16) |
10.30 mm × 7.50 mm |
(1) For all available packages, see the orderable addendum at the end of
the data sheet.
Isolation
Options
PART
NUMBER |
ISO1640BD-Q1 |
ISO1640DW-Q1 |
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 |