ISO7740-Q1

ACTIVE

Automotive, robust EMC, quad-channel, 4/0, reinforced digital isolator

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Product details

Parameters

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 4/0 Isolation rating (Vrms) 5000, 3000 Data rate (Max) (Mbps) 100 Rating Automotive Surge voltage capability (Vpk) 12800, 6400 Current consumption per channel (DC) (Typ) (mA) 0.78 Current consumption per channel (1 Mbps) (Typ) (mA) 1.38 Operating temperature range (C) -40 to 125 TI functional safety category Functional Safety-Capable Default output High, Low Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.25 Propagation delay (Typ) (ns) 10.7 open-in-new Find other Digital isolators

Package | Pins | Size

SOIC (DW) 16 77 mm² 10.3 x 7.5 SSOP (DBQ) 16 29 mm² 4.9 x 6 open-in-new Find other Digital isolators

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to 125°C ambient operating temperature
  • Functional Safety-Capable
  • 100 Mbps data rate
  • Robust isolation barrier:
    • >100-year projected lifetime at 1500 VRMS working voltage
    • Up to 5700 VRMS isolation rating
    • Up to 12.8 kV surge capability
    • ±100 kV/µs typical CMTI
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25-V to 5.5-V level translation
  • Default output high (ISO774x) and low (ISO774xF) options
  • Low power consumption, typical 1.5 mA per channel at 1 Mbps
  • Low propagation delay: 10.7 ns typical (5-V Supplies)
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low emissions
  • Extra-wide SOIC (DWW-16), wide-SOIC (DW-16) and QSOP (DBQ-16) package options
  • Safety-related certifications:
    • DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
    • CSA, CQC, and TUV certifications
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Description

The ISO774x-Q1automotive devicesare high-performance, quad-channel digital isolators with 5700 VRMS (DWW package), 5000 VRMS(DW package) and 3000 VRMS (DBQ package) isolation ratings per UL 1577. This family of devices has reinforced insulation ratings according to VDE, CSA, TUV and CQC.

The ISO774x-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 a double capacitive silicon dioxide (SiO2) insulation barrier. These devices come with enable pins which can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. The ISO7740-Q1device has all four channels in the same direction, theISO7741-Q1 device has three forward and one reverse-direction channels, and theISO7742-Q1device has two forward and two reverse-direction channels. If the input power or signal is lost, default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.

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Technical documentation

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Type Title Date
* Data sheet ISO774x-Q1 High-Speed, Robust-EMC Reinforced Quad-Channel Digital Isolators datasheet (Rev. D) Oct. 13, 2020
Certificate CSA Certification (Rev. Q) Jun. 14, 2021
Certificate VDE certificate for reinforced isolation for DIN VDE V 0884-11:2017-01 (Rev. O) Jun. 14, 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen Jun. 11, 2021
Application note How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A) May 19, 2021
User guide Universal Digital Isolator Evaluation Module Mar. 04, 2021
Certificate UL Certification (Rev. O) Feb. 03, 2021
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. A) Dec. 07, 2020
Technical article How to select the right digital isolator for your design Oct. 21, 2020
Functional safety information ISO7740-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Jun. 18, 2020
Certificate TUV certificate for isolation devices (Rev. I) Mar. 14, 2020
Technical article Why signal isolation matters in 48-V HEV/EV systems Nov. 20, 2019
Certificate CQC Certification (Rev. F) Sep. 13, 2019
Technical article Staying on budget: How digital isolators are transforming field transmitters May 24, 2019
Technical article What are isolated digital inputs? Mar. 08, 2019
Application note Considerations for Selecting Digital Isolators Jul. 24, 2018
User guide ISO77xx Triple/Quad Digital Isolator Evaluation Module User's Guide May 05, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
29
Description

DIGI-ISO-EVM is an evaluaiton module used to evaluate any of the TI signle-channel, dual-channel, triple-channel, quad-channel or six-channel digital isolator devices in five different packages - 8-pin NB SOIC (D), 8-pin WB SOIC (DWV), 16-pin WB SOIC (DW), 16-pin ultra WB SOIC (DWW) and 16-pin QSOP (...)

Features
  • Any TI digital isolator can be evaluated
  • Supports single-channel, dual-channel, triple-channel, quad-channel and six-channel devices
  • Supports D, DWV, DW, DWW and DBQ packages
  • Various Berg pins provided for easy testing
EVALUATION BOARD Download
document-generic User guide
49
Description
ISO7741DBQEVM is an Evaluaiton Module used to evaluate the high performance, reinforced quad channel digital isolator ISO7741 in 16-Pin SSOP package (Package Code-DBQ). The EVM features enough test points & jumper options for one to evaluate the device with minimal external components.
Features
  • High Speed, Robust EMC Dual-Channel Digital Isolator
  • Wide Supply & Level Translation Range: 2.25V to 5.5V
  • High Signaling Rate: Up to 100Mbps
  • Low Propagation Delay: 11ns Typical (5V Supplies)
  • Isolation Barrier Life > 100 Years
EVALUATION BOARD Download
document-generic User guide
49
Description
The ISO7741EVM is an evaluaiton module (EVM) to evaluate the ISO7741. The ISO7741 is a high-performance, reinforced quad-channel digital isolator in a wide-body SOIC package (package code DW). The EVM features enough test points and jumber options for you to evaluate the (...)
Features
  • High-speed, robust EMC quad-channel digital isolator
  • Wide supply & level translation range: 2.25 V to 5.5 V
  • High signaling rate: Up to 100 Mbps
  • Low propagation delay: 11 ns typical (5-V supplies)
  • Isolation barrier life > 100 years

Design tools & simulation

SIMULATION MODEL Download
SLLM310A.ZIP (62 KB) - IBIS Model
SIMULATION MODEL Download
SLLM471.ZIP (245 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
SOIC (DW) 16 View options
SSOP (DBQ) 16 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

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