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Drop-In-Ersatz mit gegenüber dem verglichenen Baustein verbesserter Funktionalität
ISO7710 AKTIV Robuster einkanaliger verstärkter Digitalisolator mit EMV-Schutz Higher isolation rating and higher CMTI

Produktdetails

Rating Catalog Integrated isolated power No Isolation rating Basic Number of channels 1 Forward/reverse channels 1 forward / 0 reverse Default output High Data rate (max) (Mbps) 100 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4000 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (V/µs) 25000 Operating temperature range (°C) -40 to 125 Supply voltage (max) (V) 5 Supply voltage (min) (V) 3.3 Propagation delay time (typ) (µs) 0.017 Current consumption per channel (DC) (typ) (mA) 4.3 Creepage (min) (mm) 6 Clearance (min) (mm) 6
Rating Catalog Integrated isolated power No Isolation rating Basic Number of channels 1 Forward/reverse channels 1 forward / 0 reverse Default output High Data rate (max) (Mbps) 100 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4000 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (V/µs) 25000 Operating temperature range (°C) -40 to 125 Supply voltage (max) (V) 5 Supply voltage (min) (V) 3.3 Propagation delay time (typ) (µs) 0.017 Current consumption per channel (DC) (typ) (mA) 4.3 Creepage (min) (mm) 6 Clearance (min) (mm) 6
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 100 and 150-Mbps Signaling Rate Options
  • Low Propagation Delay
  • Low Pulse Skew
  • Low-Power Sleep Mode
  • High Electromagnetic Immunity
  • Low Input-Current Requirement
  • Failsafe Output
  • Drop-In Replacement for Most Opto and Magnetic
    Isolators
  • Operates from 3.3 V and 5 V Supplies
  • –40°C to 125°C Operating Temperature Range
  • 50 kV/µs Transient Immunity, Typical
  • Safety and Regulatory Approvals
    • VDE Basic Insulation with 4000-VPK VIOTM,
      560 VPK VIORM
    • 2500 VRMS Isolation per UL 1577
    • CSA Approved for Component Acceptance
      Notice 5A and IEC 60950-1
  • APPLICATIONS
    • Industrial Fieldbus
      • Modbus
      • Profibus
      • DeviceNet™ Data Buses
      • Smart Distributed Systems (SDS™)
    • Computer Peripheral Interface
    • Servo Control Interface
    • Data Acquisition

All other trademarks are the property of their respective owners

  • 100 and 150-Mbps Signaling Rate Options
  • Low Propagation Delay
  • Low Pulse Skew
  • Low-Power Sleep Mode
  • High Electromagnetic Immunity
  • Low Input-Current Requirement
  • Failsafe Output
  • Drop-In Replacement for Most Opto and Magnetic
    Isolators
  • Operates from 3.3 V and 5 V Supplies
  • –40°C to 125°C Operating Temperature Range
  • 50 kV/µs Transient Immunity, Typical
  • Safety and Regulatory Approvals
    • VDE Basic Insulation with 4000-VPK VIOTM,
      560 VPK VIORM
    • 2500 VRMS Isolation per UL 1577
    • CSA Approved for Component Acceptance
      Notice 5A and IEC 60950-1
  • APPLICATIONS
    • Industrial Fieldbus
      • Modbus
      • Profibus
      • DeviceNet™ Data Buses
      • Smart Distributed Systems (SDS™)
    • Computer Peripheral Interface
    • Servo Control Interface
    • Data Acquisition

All other trademarks are the property of their respective owners

The ISO721, ISO721M, ISO722, and ISO722M are digital isolators with a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. This barrier provides galvanic isolation of up to 4000 VPK per VDE. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground, and interfering with or damaging sensitive circuitry.

A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure the proper dc level of the output.

If this dc-refresh pulse is not received for more than 4 µs, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic-high state.

The symmetry of the dielectric and capacitor within the integrated circuitry provides for close capacitive matching, and allows fast transient voltage changes between the input and output grounds without corrupting the output. The small capacitance and resulting time constant provide for fast operation with signaling rates from 0 Mbps (DC) to 100 Mbps for the ISO721 and the ISO722 devices, and 0 Mbps to 150 Mbps with the ISO721M and the ISO722M devices.

These devices require two supply voltages of 3.3 V, 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply and all outputs are 4 mA CMOS.

The ISO722 and ISO722M devices include an active-low output enable that when driven to a high logic level, places the output in a high-impedance state and turns off internal bias circuitry to conserve power.

Both the ISO721 and ISO722 devices have TTL input thresholds and a noise filter at the input that prevent transient pulses of up to 2 ns in duration from being passed to the output of the device.

The ISO721M and ISO722M devices have CMOS VCC / 2 input thresholds, but do not have the noise-filter and the additional propagation delay. These features of the ISO721M device also provide for reduced-jitter operation.

The ISO721, ISO721M, ISO722, and ISO722M devices are characterized for operation over the ambient temperature range of –40°C to 125°C.

The ISO721, ISO721M, ISO722, and ISO722M are digital isolators with a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. This barrier provides galvanic isolation of up to 4000 VPK per VDE. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground, and interfering with or damaging sensitive circuitry.

A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure the proper dc level of the output.

If this dc-refresh pulse is not received for more than 4 µs, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic-high state.

The symmetry of the dielectric and capacitor within the integrated circuitry provides for close capacitive matching, and allows fast transient voltage changes between the input and output grounds without corrupting the output. The small capacitance and resulting time constant provide for fast operation with signaling rates from 0 Mbps (DC) to 100 Mbps for the ISO721 and the ISO722 devices, and 0 Mbps to 150 Mbps with the ISO721M and the ISO722M devices.

These devices require two supply voltages of 3.3 V, 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply and all outputs are 4 mA CMOS.

The ISO722 and ISO722M devices include an active-low output enable that when driven to a high logic level, places the output in a high-impedance state and turns off internal bias circuitry to conserve power.

Both the ISO721 and ISO722 devices have TTL input thresholds and a noise filter at the input that prevent transient pulses of up to 2 ns in duration from being passed to the output of the device.

The ISO721M and ISO722M devices have CMOS VCC / 2 input thresholds, but do not have the noise-filter and the additional propagation delay. These features of the ISO721M device also provide for reduced-jitter operation.

The ISO721, ISO721M, ISO722, and ISO722M devices are characterized for operation over the ambient temperature range of –40°C to 125°C.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet ISO72x Single Channel High-Speed Digital Isolators datasheet (Rev. L) PDF | HTML 19 Okt 2015
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 31 Jan 2024
Application note Digital Isolator Design Guide (Rev. G) PDF | HTML 13 Sep 2023
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C) PDF | HTML 07 Sep 2023
Certificate CSA Certificate for ISO72xD 21 Feb 2023
Certificate UL Certificate of Compliance File E181974 Vol 3 Sec 1 08 Aug 2022
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 16 Nov 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 11 Jun 2021
EVM User's guide Universal Digital Isolator Evaluation Module PDF | HTML 04 Mär 2021
Application note ISO72x Digital Isolator Magnetic-Field Immunity (Rev. B) 07 Aug 2018
Application note High-Voltage Lifetime of the ISO72x Family of Digital Isolators (Rev. A) 01 Aug 2018
Application note The ISO72x Family of High-Speed Digital Isolators (Rev. A) 01 Aug 2018
Application brief Considerations for Selecting Digital Isolators 24 Jul 2018

Design und Entwicklung

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Evaluierungsplatine

DIGI-ISO-EVM — Evaluierungsmodul für universellen digitalen Isolator

DIGI-ISO-EVM ist ein Evaluierungsmodul (EVM), mit dem Sie alle ein-, zwei-, drei-, vier- oder sechskanaligen digitalen Isolatoren von TI in fünf verschiedenen Gehäusen evaluieren können: 8-poliges SOIC mit schmalem Gehäuse (D), 8-poliges SOIC mit breitem Gehäuse (DWV), 16-poliges SOIC mit breitem (...)

Benutzerhandbuch: PDF | HTML
Simulationsmodell

ISO72x IBIS Model (Rev. A)

SLLC282A.ZIP (15 KB) - IBIS Model
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
SOIC (D) 8 Ultra Librarian

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  • Kontinuierliches Zuverlässigkeitsmonitoring
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