ISO164x-Q1 Robust-EMC Bidirectional I2C Digital Isolators

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

• Supports up to 1.7 MHz Operation

• Robust isolation barrier:

working voltage

– 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

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

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

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)

ISO1640-Q1

SOIC (8)

4.90 mm × 3.91 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

Reinforced, Basic, and Functional Isolation

Options

PART NUMBER

ISO164xBD-Q1

Protection Level

Basic

Surge Test Voltage

Isolation Rating

Working Voltage

VCC2

VCC1

SDA2

or SCL2

SDA1

or SCL1

GND1

GND2

Simplified Isolated Bidirectional Data Channel

Schematic

www.ti.com

ISO1640-Q1

SLLSFC3 – OCTOBER 2020

Copyright © 2020 Texas Instruments Incorporated

Submit Document Feedback

1

Product Folder Links: ISO1640-Q1

ISO1640-Q1

SLLSFC3 – OCTOBER 2020

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. ADVANCE INFORMATION for preproduction products; subject to change

without notice.