ISO733x-Q1 Robust EMC, Low Power, Triple-Channel Digital Isolators

1 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 Classification Level 3A
  • Device CDM Classification Level C6
• Signaling Rate: 25 Mbps
• Integrated Noise Filter on the Inputs
• Default Output High and Low Options
• Low Power Consumption: Typical I_CC per Channel at 1 Mbps:
  • ISO7330-Q1: 1 mA (5-V Supplies),
    0.8 mA (3.3-V Supplies)
  • ISO7331-Q1: 1.4 mA (5-V Supplies),
    1 mA (3.3-V Supplies)
• Low Propagation Delay: 32 ns
  Typical (5-V Supplies)
• Operates from 3.3 V and 5-V Supplies
• 3.3-V and 5-V Level Translation
• 70-kV/μs Transient Immunity,
  Typical (5-V Supplies)
• Robust Electromagnetic Compatibility (EMC)
  • System-level ESD, EFT, and Surge Immunity
  • Low Emissions
• Wide Body SOIC-16 Package
• Isolation Barrier Life: > 25 Years
• Safety and Regulatory Approvals:
  • 4242-V_PK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
  • 3000-V_RMS Isolation for 1 minute per UL 1577
  • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 End Equipment Standards
  • Planned CQC Certification per GB4943.1-2011

2 Applications

• Opto-Coupler Replacement in:
  • Industrial FieldBus
    • ProfiBus
    • ModBus
    • DeviceNet™ Data Buses
  • Servo Control Interface
  • Motor Control
  • Power Supplies
  • Battery Packs

3 Description

The ISO733x-Q1 family of devices provides galvanic isolation up to 3000 V_RMS for 1 minute per UL 1577 and 4242 V_PK per VDE V 0884-10. These devices have three isolated channels comprised of logic input and output buffers separated by a silicon dioxide (SiO₂) insulation barrier.

The ISO7330-Q1 has all three channels in the same direction while ISO7331-Q1 has two channels in forward and one channel in reverse direction. In case of input power or signal loss, the default output is low for orderable part numbers with suffix F and high for orderable part numbers without suffix F. See the Device Functional Modes section for further details.

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. The ISO733x-Q1 family of devices has integrated noise filter for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO733x-Q1 family of devices has TTL input thresholds and operates from 3-V to 5.5-V supply levels. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO733x-Q1 family of devices has been significantly enhanced to enable system-level ESD, EFT, Surge and Emissions compliance.

1. For all available packages, see the orderable addendum at the end of the datasheet.

Simplified Schematic

V_CCI and GNDI are supply and ground connections respectively for the input channels.

V_CCO and GNDO are supply and ground connections respectively for the output.

4 Revision History

5 Pin Configuration and Functions

ISO7330-Q1 DW Package

16-Pin SOIC

Top View

ISO7331-Q1 DW Package

16-Pin SOIC

Top View