Texas Instruments ISO6740-Q1 Bedienungsanleitung

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ISO674x-Q1 Automotive, General-Purpose, Reinforced, Quad-Channel Digital

Isolators With Robust EMC

1 Features

•Functional Safety-Capable

–Documentation available to aid functional safety

system design: ISO6740-Q1, ISO6741-Q1,

ISO6742-Q1

•AEC-Q100 qualified with the following results:

–Device temperature Grade 1: –40°C to 125°C

ambient operating temperature range

•Meets VDA320 isolation requirements

•50Mbps data rate

•Robust isolation barrier:

–High lifetime at 1500V

RMS

working voltage

–Up to 5000V

RMS

isolation rating

–Up to 10kV surge capability

–±150kV/μs typical CMTI

•Wide supply range: 1.71V to 1.89V and 2.25V to

5.5V

•1.71V to 5.5V level translation

•Default output high (ISO674x-Q1) and low

(ISO674xF-Q1) options

•1.6mA per channel typical at 1Mbps

•Low propagation delay: 11ns typical

•Robust electromagnetic compatibility (EMC)

–System-level ESD, EFT, and surge immunity

–±8kV IEC 61000-4-2 contact discharge

protection across isolation barrier

–Low emissions

•Wide-SOIC (DW-16) Package

•Safety-Related Certifications :

–DIN EN IEC 60747-17 (VDE 0884-17)

–UL 1577 component recognition program

–IEC 62368-1, IEC 61010-1, IEC 60601-1

–GB 4943.1

2 Applications

•Hybrid, electric and power train system (EV/HEV)

–Battery management system (BMS)

–On-board charger

–DC/DC converter

–Inverter and motor control

3 Description

The ISO674x-Q1 devices are high-performance,

quad-channel digital isolators designed for cost-

sensitive applications requiring up to 5000V

RMS

isolation ratings per UL 1577. These devices are also

certified by VDE, TUV, CSA, and CQC.

The ISO674x-Q1 devices provide high

electromagnetic immunity and low emissions at

low power consumption, while isolating CMOS or

LVCMOS digital I/Os. Each isolation channel has

a logic input and output buffer separated by TI's

double capacitive silicon dioxide (SiO

2

) insulation

barrier. These devices come with enable pins which

can be used to put the respective outputs in high

impedance for multi-controller driving applications.

The ISO6740-Q1 device has all four channels in the

same direction, the ISO6741-Q1 device has three

forward and one reverse-direction channels, and the

ISO6742-Q1 device has two forward and two reverse-

direction channels. In the event of input power or

signal loss, the default output is high for devices

without suffix F and low for devices with suffix F. See

also Device Functional Modes section.

Used in conjunction with isolated power supplies,

the ISO674x-Q1 devices help prevent noise currents

on data buses, such as CAN and LIN from

damaging sensitive circuitry. Through remarkable chip

design and layout techniques, the electromagnetic

compatibility of the ISO674x-Q1 devices has been

significantly enhanced to ease system-level ESD,

EFT, surge, and emissions compliance. The ISO674x-

Q1 family of devices is available in a 16-pin SOIC

wide-body (DW) package and is a pin-to-pin upgrade

to the older generations.

ISO6740-Q1, ISO6741-Q1, ISO6742-Q1

SLLSFG4F – DECEMBER 2019 – REVISED JUNE 2024

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.

Produktspezifikationen