ISO164x-Q1 Automotive, Hot-Swappable Bidirectional I2C Isolators with Enhanced

EMC

1 Features

• 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

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:

voltage (DW-16)

– Up to 10 kV reinforced surge capability

– ±100 kV/μs typical CMTI

– ±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)

• 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

• SMBus and PMBus Interfaces

• Power Over Ethernet (PoE)

• Motor Control Systems

• Battery Management

.

3 Description

The ISO1640-Q1 (ISO164x-Q1) device is a hot

swappable, low-power, bidirectional isolator that is

device has a logic input and open drain output

separated by a double capacitive silicon dioxide

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

Isolation Rating

Working Voltage

ISO1640-Q1

SLLSFC3A – MARCH 2020 – REVISED DECEMBER 2021

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.