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ISO773x/4x, Triple- and Quad-Channel Digital Isolators

Texas Instruments offers its ISO773x/4x, high-speed, robust EMC, triple- or quad-channel digital isolators

Image of Texas Instruments' ISO773x/4x, Triple- and Quad-Channel Digital IsolatorsTexas Instruments' ISO773/4 devices are high-performance, triple- or quad-channel digital isolators with 5000 VRMS (DW package) and 2500 VRMS (DBQ package) isolation ratings per UL 1577. This family of devices has reinforced insulation ratings according to VDE, CSA, TUV, and CQC.

The ISO773x/4x family of devices provides 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 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. Options for these devices include all channels in the same directions or forward/reverse combinations. If the input power or signal is lost, the default output is high for devices without suffix F and low for devices with suffix F.

Used in conjunction with isolated power supplies, this device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of this device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. This family of devices is available in 16-pin wide-SOIC and QSOP packages.

Features
  • Signaling rate: up to 100 Mbps
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25 V to 5.5 V level translation
  • Default output high and low options
  • Wide temperature range: -55°C to 125°C
  • Low power consumption, typical 1.5 mA per channel at 1 Mbps
  • Low propagation delay: 10.7 ns typical (5 V supplies)
  • High CMTI: ±75 kV/µs typical
  • Robust electromagnetic compatibility (EMC)
  • System-level ESD, EFT, and surge immunity
  • Low emissions
  • Isolation barrier life: > 40 years
  • Wide-SOIC (DW-16) and QSOP (DBQ-16) package options
  • Safety-related certifications:
    • DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
    • UL 1577 component recognition program
    • CSA component acceptance Notice 5A, IEC 60950-1, IEC 60601-1 and IEC 61010-1, end equipment standards
    • CQC approval per GB4943.1-2011
    • TUV certification according to EN 60950-1 and EN 61010-1
    • All certifications are planned

Video:  Isolation basics: An introduction to standards and terminology

ISO773x/4x, Triple- and Quad-Channel Digital Isolators

ImageManufacturer Part NumberDescriptionChannel TypeVoltage - IsolationAvailable QuantityView Details
DGTL ISO 5000VRMS 3CH GP 16SOICISO7730FDWDGTL ISO 5000VRMS 3CH GP 16SOICUnidirectional5000Vrms734 - Immediate
10000 - Factory Stock
View Details
DGTL ISO 5000VRMS 3CH GP 16SOICISO7731FDWDGTL ISO 5000VRMS 3CH GP 16SOICUnidirectional5000Vrms0View Details
DGTL ISO 5000VRMS 3CH GP 16SOICISO7730DWDGTL ISO 5000VRMS 3CH GP 16SOICUnidirectional5000Vrms119 - Immediate
10000 - Factory Stock
View Details
DGTL ISO 5000VRMS 4CH GP 16SOICISO7740FDWRDGTL ISO 5000VRMS 4CH GP 16SOICUnidirectional5000Vrms0View Details
DGTL ISO 5000VRMS 4CH GP 16SOICISO7740DWRDGTL ISO 5000VRMS 4CH GP 16SOICUnidirectional5000Vrms0View Details
Published: 2016-10-26