ISO7742TA-Q1

ACTIVO

Aislador digital reforzado automotriz de cuatro canales con controlador de transformador de 160 kHz

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ISO7742TA-Q1

ACTIVO

Detalles del producto

Rating Automotive Operating temperature range (°C) to
Rating Automotive Operating temperature range (°C) to
  • Qualified for automotive applications AEC-Q100
  • Device temperature Grade 1: –40°C to 125°C ambient operating temperature
  • Functional Safety-Capable
    • Documentation available to aid ISO 26262 system design
  • 100Mbps data rate
  • Robust isolation barrier:
    • >30-year projected lifetime at 1500VRMS working voltage
    • 5000VRMS rating
    • Up to 12.8kV surge capability
    • ±150kV/µs typical CMTI for digital isolator
  • Wide supply range: 2.25V to 5.5V
  • 2.25V to 5.5V level translation
  • Default output high (ISO774xT) and low (ISO774xFT) options
  • Low power consumption, typical 1.5mA per channel at 1Mbps
  • Low propagation delay: typical 10.7ns at 5V
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
  • Push-pull driver for transformers
  • High output drive: max 0.7A at 5V supply
  • Low RON 0.4Ω max at 4.5V supply
  • Spread spectrum clocking
  • Typical 1.75A Current-limit for Transformer driver at 5V supply.
  • Safety-related certifications (Pending):
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications
  • Qualified for automotive applications AEC-Q100
  • Device temperature Grade 1: –40°C to 125°C ambient operating temperature
  • Functional Safety-Capable
    • Documentation available to aid ISO 26262 system design
  • 100Mbps data rate
  • Robust isolation barrier:
    • >30-year projected lifetime at 1500VRMS working voltage
    • 5000VRMS rating
    • Up to 12.8kV surge capability
    • ±150kV/µs typical CMTI for digital isolator
  • Wide supply range: 2.25V to 5.5V
  • 2.25V to 5.5V level translation
  • Default output high (ISO774xT) and low (ISO774xFT) options
  • Low power consumption, typical 1.5mA per channel at 1Mbps
  • Low propagation delay: typical 10.7ns at 5V
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
  • Push-pull driver for transformers
  • High output drive: max 0.7A at 5V supply
  • Low RON 0.4Ω max at 4.5V supply
  • Spread spectrum clocking
  • Typical 1.75A Current-limit for Transformer driver at 5V supply.
  • Safety-related certifications (Pending):
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications

The ISO774xT-Q1 is a grade 1, high-performance, quad-channel digital isolator with integrated transformer driver with 5000VRMS isolation ratings per UL 1577. This reinforced insulation ratings according to VDE, CSA, TUV and CQC.

The ISO774xT-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. 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.

The ISO774xT-Q1 has a low-noise, low-EMI push-pull transformer driver, specifically designed for small form factor, isolated power supplies. The device drives low-profile, center-tapped transformers from a 2.25V to 5.5V DC power supply. Very low noise and EMI are achieved by slew rate control of the output switch voltage and through Spread Spectrum Clocking (SSC). The ISO774xT-Q1 consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive ground-referenced N-channel power switches. The device includes two 0.7A Power-MOSFET switches to provide start-up under heavy loads. The internal protection features include a 1.75A current limiting, under-voltage lockout, thermal shutdown, and break-before-make circuitry. ISO774xT-Q1 include a soft-start feature that prevents high inrush current during power up with large load capacitors. ISO774xTA-Q1 has a 160kHz internal oscillator for applications that need to minimize emissions whereas ISO774xTB-Q1 has a 420kHz internal oscillators for applications that require higher efficiency and smaller transformer size.

The ISO774xT-Q1 is available in a 16-pin DW package. The device operation is characterized for a temperature range from -40°C to 125°C.

The ISO774xT-Q1 is a grade 1, high-performance, quad-channel digital isolator with integrated transformer driver with 5000VRMS isolation ratings per UL 1577. This reinforced insulation ratings according to VDE, CSA, TUV and CQC.

The ISO774xT-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. 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.

The ISO774xT-Q1 has a low-noise, low-EMI push-pull transformer driver, specifically designed for small form factor, isolated power supplies. The device drives low-profile, center-tapped transformers from a 2.25V to 5.5V DC power supply. Very low noise and EMI are achieved by slew rate control of the output switch voltage and through Spread Spectrum Clocking (SSC). The ISO774xT-Q1 consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive ground-referenced N-channel power switches. The device includes two 0.7A Power-MOSFET switches to provide start-up under heavy loads. The internal protection features include a 1.75A current limiting, under-voltage lockout, thermal shutdown, and break-before-make circuitry. ISO774xT-Q1 include a soft-start feature that prevents high inrush current during power up with large load capacitors. ISO774xTA-Q1 has a 160kHz internal oscillator for applications that need to minimize emissions whereas ISO774xTB-Q1 has a 420kHz internal oscillators for applications that require higher efficiency and smaller transformer size.

The ISO774xT-Q1 is available in a 16-pin DW package. The device operation is characterized for a temperature range from -40°C to 125°C.

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* Data sheet ISO774xT-Q1 High-Speed, Reinforced Quad-Channel Digital Isolators With Integrated Transformer Driver datasheet (Rev. B) PDF | HTML 21 ene 2025

Diseño y desarrollo

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Placa de evaluación

ISO7741TADWEVM — Módulo de evaluación ISO7741T para encapsulado DW

El módulo de evaluación ISO7741TA se usa para evaluar aisladores digitales reforzados de 5000 VRMS, alto rendimiento y cuatro canales con controlador de transformador integrado ISO7741TA en encapsulado SOIC WB de 16 pines (código de encapsulado DW). El EVM cuenta con múltiples puntos de prueba y (...)

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