ISO7842 5.7-kVrms, 100-Mbps, reinforced 4-channel 2/2 digital isolator | TI.com

ISO7842 (ACTIVE) 5.7-kVrms, 100-Mbps, reinforced 4-channel 2/2 digital isolator

5.7-kVrms, 100-Mbps, reinforced 4-channel 2/2 digital isolator - ISO7842
Datasheet
ISO7842x High-Performance, 8000-VPK Reinforced Quad-Channel Digital Isolator datasheet (Rev. G)
 

Description

The ISO7842x device is a high-performance, quad-channel digital isolator with a 8000-VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV. The isolator 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 that can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. The ISO7842 device has two forward and two reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7842 device and low for the ISO7842F device. See the Device Functional Modes section for further details.

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 the ISO7842 device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance.

The ISO7842 device is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) 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
  • Wide Temperature Range: –55°C to +125°C
  • Low-Power Consumption, Typical 1.7 mA per Channel at 1 Mbps
  • Low Propagation Delay: 11 ns Typical
    (5-V Supplies)
  • Industry leading CMTI (Min): ±100 kV/µs
  • Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
  • Isolation Barrier Life: >40 Years
  • Wide Body SOIC-16 Package and Extra-Wide Body SOIC-16 Package Options
  • Safety and Regulatory Approvals:
    • 8000-VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    • 5.7-kVRMS Isolation for 1 Minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 End Equipment Standards
    • CQC Certification per GB4943.1-2011
    • TUV Certification per EN 61010-1 and EN 60950-1
    • All DW Package Certifications Complete; DWW Package Certifications Complete per UL, VDE, TUV and Planned for CSA and CQC

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Parametrics

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Part number Order Integrated isolated power Number of channels (#) Forward/reverse channels Isolation rating (Vrms) Surge voltage capability (Vpk) Data rate (Max) (Mbps) Current consumption per channel (DC) (Typ) (mA) Current consumption per channel (1 Mbps) (Typ) (mA) Propagation delay (Typ) (ns) Default output VCC (Min) (V) VCC (Max) (V) Rating Operating temperature range (C)
ISO7842 Order now No     4     2/2     5700     12800     100     1     1.65     10.7     High
Low    		 2.25     5.5     Catalog     -55 to 125    
ISO7821 Order now No     2     1/1     5700     12800     100     1.2     1.8     10.7     High
Low    		 2.25     5.5     Catalog     -55 to 125    
ISO7841 Order now No     4     3/1     5700     12800     100     0.9     1.53     10.7     High
Low    		 2.25     5.5     Catalog     -55 to 125