ISO7820

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Highest isolation rating, dual-channel, 2/0, reinforced digital isolator

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Product details

Parameters

Integrated isolated power No Number of channels (#) 2 Forward/reverse channels 2/0 Isolation rating (Vrms) 5700 Data rate (Max) (Mbps) 100 Rating Catalog VCC (Max) (V) 5.5 Surge voltage capability (Vpk) 12800 Current consumption per channel (DC) (Typ) (mA) 1.05 Current consumption per channel (1 Mbps) (Typ) (mA) 1.7 Operating temperature range (C) -55 to 125 VCC (Min) (V) 2.25 Default output High, Low Propagation delay (Typ) (ns) 10.7 open-in-new Find other Digital isolators

Package | Pins | Size

SOIC (DW) 16 77 mm² 10.3 x 7.5 SOIC (DWW) 16 178 mm² 10.3 x 17.25 open-in-new Find other Digital isolators

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: > 25 Years
  • SOIC-16 Wide Body (DW) and Extra-Wide Body
    (DWW) 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, TUV and Planned for VDE, CSA, and
      CQC
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Description

The ISO7820 is a high-performance, dual-channel digital isolator with 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/O’s. Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO2) insulation barrier. ISO7820 has two forward channels and no reverse-direction channel. If the input power or signal is lost, default output is ‘high’ for the ISO7820 and ‘low’ for the ISO7820F device. Used in conjunction with isolated power supplies, this device prevents 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 ISO7820 has been significantly enhanced to ease system-level ESD, EFT, Surge and Emissions compliance. ISO7820 is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages. The DWW package option 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.

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Technical documentation

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Type Title Date
* Datasheet ISO7820x High-Performance, 8000 VPK Reinforced Dual Channel Digital Isolator datasheet (Rev. A) Mar. 24, 2016
More literature TUV certificate for isolation devices (Rev. I) Mar. 14, 2020
Technical articles What the DIN VDE V 0884-11:2017-01 standard means for your isolated designs Feb. 27, 2020
Technical articles Isolation 101: How to find the right isolation solution for your application Feb. 11, 2020
Technical articles Why signal isolation matters in 48-V HEV/EV systems Nov. 20, 2019
More literature CSA Certification (Rev. P) Nov. 19, 2019
More literature VDE certificate for reinforced isolation for DIN VDE V 0884-11:2017-01 (Rev. N) Nov. 13, 2019
Technical articles Solving lifetime and temperature challenges in AC motor drives with capacitive-based isolation Nov. 01, 2019
More literature CQC Certification (Rev. F) Sep. 13, 2019
More literature UL Certification (Rev. N) Jul. 30, 2019
Application notes Digital Isolator Design Guide (Rev. B) Aug. 01, 2018
Application notes Considerations for Selecting Digital Isolators Jul. 24, 2018
Application notes How to reduce radiated emissions of digital isolators for systems with RF module Mar. 26, 2018
Application notes Isolation Glossary (Rev. A) Sep. 19, 2017
User guides ISO784xx Quad-Channel Digital Isolator EVM User Guide Oct. 17, 2014
White papers Understanding electromagnetic compliance tests in digital isolators Oct. 17, 2014
White papers High-voltage reinforced isolation: Definitions and test methodologies Oct. 16, 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The ISO7842 provides galvanic isolation up to 5700 VRMS for 1 minute per UL and 8000 VPK per VDE. This device has four isolated channels comprised of a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, this (...)

Features
  • 8000 VPK isolation per VDE0884-10 Ed 2.0
  • 5.7 kVRMS isolation for 1 minute per UL 1577
  • Signaling rate: 100 Mbps
  • Isolation barrier life: > 25 years

Design tools & simulation

SIMULATION MODELS Download
SLLM279A.ZIP (42 KB) - IBIS Model
SIMULATION MODELS Download
SLLM280A.ZIP (42 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
High accuracy analog input module reference design with 16-bit 1-MSPS dual simultaneous-sampling ADC
TIDA-01576 — This reference design accurately measures 16-channel AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range. This range covers protection and measurement requirements (including sampling requirements as per IEC 61850-9-2), which simplifies system design and improves (...)
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Bidirectional CLLLC resonant dual active bridge (DAB) reference design for HEV/EV onboard charger
TIDM-02002 — CLLLC resonant DAB with bidirectional power flow capability and soft switching characteristics is an ideal candidate for Hybrid Electric Vehicle/Electric Vehicle (HEV/EV) on-board chargers and energy storage applications. This design illustrates control of this power topology using a C2000&trade (...)
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REFERENCE DESIGNS Download
6.6 kW, bi-directional, dual-active-bridge CLLLC resonant converter reference design
PMP21495 — This reference design is a 6.6 kW, bi-directional, dual-active-bridge resonant converterdesign that allows 380 VDC to 600 VDC input and 280 VDC to 450 VDC output. This design uses the C2000 micro-controller TMS320F280049 along with silicon-carbide (SiC) driver UCC21530-Q1 to drive bridges both on (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
6.6 kW, bi-directional CLLLC resonant converter reference design using PCB winding transformer
PMP21999 — This 6.6 kW, bi-directional, dual-active-bridge resonant converter reference design allows 380 VDC to 600 VDC input and 280 VDC to 450 VDC output. PCB winding transformer and Rogowski coil synchronous rectifier (SR) control are applied in this design for power density and efficiency optimization. A (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
EMC Compliant, Group Isolated, 2-Channel Binary Input Module for Wide AC/DC Input Reference Design
TIDA-00809 — The TIDA-00809 TI design showcases a cost optimized architecture that improves resolution of a binary input module. A microcontroller unit (MCU) is shared between two input channels (group isolation) to minimize the cost per channel. Wide input range is covered using an amplifier with gain and a MCU (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (DW) 16 View options
SOIC (DWW) 16 View options

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