ISO7741E-Q1

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Automotive Grade 0, high-speed, robust-EMC quad-channel digital isolator

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Product details

Parameters

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 3/1 Isolation rating (Vrms) 5000 Data rate (Max) (Mbps) 100 Rating Automotive Surge voltage capability (Vpk) 12800 Current consumption per channel (DC) (Typ) (mA) 0.88 Current consumption per channel (1 Mbps) (Typ) (mA) 1.48 Operating temperature range (C) -40 to 150 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 open-in-new Find other Digital isolators

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 0: –40°C to 150°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 5000 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 (ISO7741) and low (ISO7741F) 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
  • Wide-SOIC (DW-16) package
  • 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 ISO7741E-Q1automotive device is a grade 0, high-performance, quad-channel digital isolator with 5000 VRMS isolation ratings per UL 1577. This device has reinforced insulation ratings according to VDE, CSA, TUV and CQC. The high temperature range up to 150°C makes this device suitable for applications like belt starter generators, water pumps, cooling fans, soot sensors etc.,which may experience greater than 125°C ambient temperature.

The ISO7741E-Q1 device 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. This device comes 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 ISO7741E-Q1 device has three forward and one 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 ISO7741E-Q1 High-Speed, Robust-EMC Reinforced Quad-Channel Digital Isolator datasheet (Rev. B) Nov. 05, 2020
User guide Universal Digital Isolator Evaluation Module Mar. 04, 2021
More literature 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
Application note How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit Aug. 31, 2020
Functional safety information ISO7741-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Jun. 18, 2020
Application note Meeting the timing requirements of CAN FD in isolated CAN systems for HEV/EVs Mar. 23, 2020
More literature TUV certificate for isolation devices (Rev. I) Mar. 14, 2020
Technical article Solving high-temperature isolation design challenges with AEC-Q100 Grade 0 digital isolators Mar. 02, 2020
Technical article Why signal isolation matters in 48-V HEV/EV systems Nov. 20, 2019
More literature CSA Certification (Rev. P) Nov. 19, 2019
More literature VDE certificate for reinforced isolation for DIN VDE V 0884-11:2017-01 (Rev. N) Nov. 13, 2019
More literature CQC Certification (Rev. F) Sep. 13, 2019
Technical article Staying on budget: How digital isolators are transforming field transmitters May 24, 2019

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
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
SLLM311A.ZIP (62 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
SOIC (DW) 16 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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