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Product details

Parameters

Integrated isolated power No Number of channels (#) 2 Forward/reverse channels 1/1 Isolation rating (Vrms) 3000 Data rate (Max) (Mbps) 50 Rating Catalog Surge voltage capability (Vpk) 6500 Current consumption per channel (DC) (Typ) (mA) 1.2 Current consumption per channel (1 Mbps) (Typ) (mA) 1.8 Operating temperature range (C) -40 to 125 Default output High, Low Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 1.71 Propagation delay (Typ) (ns) 11 open-in-new Find other Digital isolators

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other Digital isolators

Features

  • 50-Mbps data rate
  • Robust isolation barrier:
    • High lifetime at 450 VRMS working voltage
    • Up to 3000 VRMS isolation rating
    • ±75 kV/µs typical CMTI
  • Wide supply range: 1.71 V to 1.89 V and 2.25 V to 5.5 V
  • 1.71-V to 5.5-V level translation
  • Default output High (ISO672xB) and Low (ISO672xFB) Options
  • Wide temperature range: –40°C to +125°C
  • 1.8 mA per channel typical at 1 Mbps
  • Low propagation delay: 11 ns typical
  • Robust electromagnetic compatibility (EMC)
    • System-Level ESD, EFT, and surge immunity
    • ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low emissions
  • Narrow-SOIC (D-8) package
  • Safety-Related Certifications (pending):
    • DIN V VDE 0884-11:2017-01
    • UL 1577 component recognition program
    • IEC 60950-1, IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1-2011 certifications

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Description

The ISO672xB devices are high-performance, dual-channel digital isolators ideal for cost sensitive applications requiring up to 3000 VRMS(D package) isolation ratings per UL 1577. These devices are also certified by VDE, TUV, CSA, and CQC.

The ISO672xB devices 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 TI’s double capacitive silicon dioxide (SiO2) insulation barrier. The ISO6721B device has 2 isolation channels with 1 channel in each direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, these devices help prevent noise currents on data buses, such as UART, SPI, RS-485, RS-232, and CAN from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO672xB devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO672xB family of devices is available in a 8-pin SOIC narrow-body (D) package and is a pin-to-pin upgrade to the older generations.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet ISO672x General Purpose Dual-Channel Digital Isolators with Robust EMC datasheet (Rev. A) Dec. 15, 2020
Technical articles How to select the right digital isolator for your design Oct. 21, 2020
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators Oct. 12, 2020
Application note How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit Aug. 31, 2020
More literature ISO6721DEVM EU Declaration of Conformity (DoC) Jul. 31, 2020
User guide ISO672x Dual-Channel Digital Isolator Evaluation Module Jul. 12, 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
Technical articles Staying on budget: How digital isolators are transforming field transmitters May 24, 2019

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description
ISO6721DEVM is an evaluation module used to evaluate the low speed, general purpose, robust EMC dual channel digital isolator ISO6721 in 8-Pin SOIC package (package code D). The EVM features enough test points and jumper options for one to evaluate the device with minimal external components.
Features
  • Low speed, robust EMC dual-channel digital isolator
  • Wide supply and level translation range: 1.71 V to 5.5 V
  • High signaling rate: Up to 50 Mbps
  • Isolation barrier life > 40 years

Design tools & simulation

SIMULATION MODEL Download
SLLM456.ZIP (79 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

Ordering & quality

Information included:
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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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