ISO1640-Q1
SLLSFC3A – MARCH 2020 – REVISED DECEMBER 2021
ISO164x-Q1 Automotive, Hot-Swappable Bidirectional I2C Isolators with Enhanced
EMC
1 Features
3 Description
•
•
Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
– VDA320 Compliant
– Device Temperature Grade 1: –40°C to +125°C
Ambient Operating Temperature
– Device HBM ESD Classification Level 3A
– Device CDM ESD Classification Level C6
Robust Isolated Bidirectional, I2C Compatible,
Communication
– ISO1640-Q1: Bidirectional SDA and SCL
communication
– Hot-Swappable SDA and SCL
Bidirectional data transfer up to 1.7 MHz Operation
Robust isolation barrier with enhanced EMC:
– >100-year projected lifetime at 450 VRMS
working voltage (D-8) and 1500 VRMS working
voltage (DW-16)
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)
– Up to 5000 VRMS isolation rating per UL1577
– Up to 10 kV reinforced surge capability
– ±100 kV/μs typical CMTI
PART NUMBER
ISO1640BD-Q1
ISO1640DW-Q1
PACKAGE
SOIC (8)
SOIC (16)
BODY SIZE (NOM)
4.90 mm × 3.91 mm
10.30 mm × 7.50 mm
– ±8 kV IEC-ESD 61000-4-2 contact discharge
protection across isolation barrier
– Same side ±8 kV IEC-ESD unpowered contact
discharge on SCL2 and SDA2 (Side 2)
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) current-sink capability
Max capacitive load: 80 pF (Side 1) and 400 pF
(Side 2)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Isolation Options
•
•
•
•
PART NUMBER
Protection Level
Surge Test Voltage
Isolation Rating
ISO1640BD-Q1 ISO1640DW-Q1
Basic
Reinforced
10000 VPK
5000 VRMS
6500 VPK
3000 VRMS
450 VRMS / 637 1500 VRMS / 2121
VPK VPK
Working Voltage
16-SOIC (DW-16) and 8-SOIC (D-8) Package
Options
•
•
–40°C to +125°C Operating Temperature
Safety-Related Certifications (planned):
– UL 1577 Component Recognition Program
– DIN VDE V 0884-11
– IEC 62368-1, IEC 61010-1, IEC 60601-1 and
GB4943.1-2011 certifications
2 Applications
•
•
•
•
•
•
Electric and Hybrid-Electric Vehicles
Isolated I2C Buses
SMBus and PMBus Interfaces
Power Over Ethernet (PoE)
Motor Control Systems
Battery Management
.
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.