ISO7721-Q1

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Automotive, robust EMC, dual-channel, 1/1, reinforced digital isolator

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Product details

Parameters

Integrated isolated power No Number of channels (#) 2 Forward/reverse channels 1/1 Isolation rating (Vrms) 5000, 3000 Data rate (Max) (Mbps) 100 Rating Automotive Surge voltage capability (Vpk) 12800, 8000 Current consumption per channel (DC) (Typ) (mA) 1 Current consumption per channel (1 Mbps) (Typ) (mA) 1.6 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 (D) 8 19 mm² 4.9 x 3.9 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 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 3A
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • 100 Mbps data rate
  • Robust isolation barrier:
    • >100-Year projected lifetime at 1.5 kVRMS 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 (ISO772x) and Low (ISO772xF) Options
  • Low power consumption, typical 1.7 mA per channel at 1 Mbps
  • Low propagation delay: 11 ns typical
  • 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) and Narrow-SOIC (D-8) package options
  • Section 6.7
    • DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
    • IEC 60950-1, IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1-2011 certifications

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Description

The ISO772x-Q1 devices are high-performance, dual-channel digital isolators with 5000 VRMS (DW package) and 3000 VRMS (D package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC.

The ISO772x-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. The ISO7720-Q1 device has both channels in the same direction while the ISO7721-Q1 device has both channels in the opposite direction. 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 the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, these devices help prevent noise currents on data buses, such as CAN and LIN, from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO772x-Q1 devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO772x-Q1 family of devices is available in 16-pin SOIC wide-body (DW) and 8-pin SOIC narrow-body (D) packages.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet ISO772x-Q1 High-Speed, Robust EMC Reinforced Dual-Channel Digital Isolators datasheet (Rev. B) Oct. 15, 2020
Technical articles How to select the right digital isolator for your design Oct. 21, 2020
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators Oct. 12, 2020
Application note How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit Aug. 31, 2020
Functional safety information ISO7721-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Mar. 17, 2020
More literature TUV certificate for isolation devices (Rev. I) Mar. 14, 2020
Technical articles Isolation 101: How to find the right isolation solution for your application Feb. 11, 2020
Technical articles 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
More literature UL Certification (Rev. N) Jul. 30, 2019
Technical articles Staying on budget: How digital isolators are transforming field transmitters May 24, 2019
User guide ISO77xxD Single- and Dual-Digital Isolator Evaluation Module (Rev. A) Feb. 25, 2019
Application note Considerations for Selecting Digital Isolators Jul. 24, 2018

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description
The ISO7721DEVM is an evaluaiton module (EVM) used to evaluate the ISO7721 high-performance, reinforced dual-channel digital isolator in an 8-pin narrow SOIC package (package code, D). The EVM features enough test points and jumper options for you to evaluate the device with minimal (...)
Features
  • High-speed, robust EMC dual-channel digital isolator
  • Wide supply and level translation range from 2.25 V to 5.5 V
  • High signaling rate up to 100 Mbps
  • Low propagation delay of11 ns typical (5-V supplies)
  • Isolation barrier life > 25 years
EVALUATION BOARD Download
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
SLLM332B.ZIP (52 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
Automotive Dual Channel SiC MOSFET Gate Driver Reference Design with Two Level Turn-off Protection
TIDA-01605 — This reference design is an automotive qualified isolated gate driver solution for driving Silicon Carbide (SiC) MOSFETs in half bridge configuration. The design includes two push pull bias supplies for the dual channel isolated gate driver respectively and each supply provides +15V and -4V output (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SOIC (DW) 16 View options

Ordering & quality

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

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