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Product details

Parameters

Integrated isolated power No Number of channels (#) 3 Forward/reverse channels 2/1 Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 50 Rating Catalog Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 1.5 Current consumption per channel (1 Mbps) (Typ) (mA) 1.5 Operating temperature range (C) -40 to 125 Default output High Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 2.7 Propagation delay (Typ) (ns) 23 open-in-new Find other Digital isolators

Package | Pins | Size

SSOP (DBQ) 16 29 mm² 4.9 x 6 open-in-new Find other Digital isolators

Features

  • Maximum Signaling Rate: 50 Mbps (With 5-V Supplies)
  • Robust Design With Integrated Noise Filter
  • Default Output Low Option (Suffix F)
  • Low Power Consumption, Typical ICC per Channel
    (With 3.3-V Supplies):
    • ISO7131: 1.5 mA at 1 Mbps,
      2.6 mA at 25 Mbps
    • ISO7140: 1 mA at 1 Mbps,
      2.3 mA at 25 Mbps
    • ISO7141: 1.3 mA at 1 Mbps,
      2.6 mA at 25 Mbps
  • Low Propagation Delay: 23-ns Typical
    (3.3-V Supplies)
  • Wide Temperature Range: –40°C to 125°C
  • 50-kV/µs Transient Immunity, Typical
  • Long Life With SiO2 Isolation Barrier
  • Operates from 2.7-V, 3.3-V, and 5-V Supply and Logic Levels
  • Small QSOP-16 Package
  • Safety and Regulatory Approvals
    • 2500-VRMS Isolation for 1 minute per UL 1577
    • 4242-VPK Isolation per DIN V VDE V 0884-10 (VDE V
      0884-10):2006-12, 566 VPK Working Voltage
    • CSA Component Acceptance Notice 5A, IEC 60950-1
      and IEC 61010-1 End Equipment Standards
    • CQC Certification per GB 4943.1-2011
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Description

ISO7131, ISO7140, and ISO7141 devices provide galvanic isolation up to 2500 VRMS for 1 minute per UL and 4242 VPK per VDE. ISO7131 has three channels with two forward and one reverse-direction channels. ISO7140 and ISO7141 are quad-channel isolators; ISO7140 has four forward channels, ISO7141 has three forward and one reverse-direction channels. These devices are capable of 50-Mbps maximum data rate with 5-V supplies and 40-Mbps maximum data rate with 3.3-V or 2.7-V supplies, with integrated filters on the inputs for noise-prone applications. The suffix F indicates that default output state is low; otherwise, the default output state is high.

Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used 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 devices have TTL input thresholds and can operate from 2.7-V, 3.3-V, and 5-V supplies. All inputs are 5-V tolerant when supplied from a 2.7-V or 3.3-V supply.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet ISO71xxCC 4242-VPK Small-Footprint Low-Power Triple and Quad Channels Digital Isolators datasheet (Rev. F) Jan. 29, 2015
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 basic isolation for DIN VDE V 0884-11:2017-01 (Rev. Q) Sep. 20, 2019
More literature CQC Certification (Rev. F) Sep. 13, 2019
More literature UL Certification (Rev. N) Jul. 30, 2019
Technical articles Staying on budget: How digital isolators are transforming field transmitters May 24, 2019
Technical articles What are isolated digital inputs? Mar. 08, 2019
Application notes Considerations for Selecting Digital Isolators Jul. 24, 2018
User guides ISO71XXDBQ-EVM Mar. 06, 2013

Design & development

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

Hardware development

EVALUATION BOARDS Download
Description

The MSP430™ CapTIvate™ isolation board (CAPTIVATE-ISO) is an add-on board for the CapTIvate Development Kits (MSP-CAPT-FR2633 or CAPTIVATE-FR2676) that allows a way to maintain Spy-by-Wire, I2C, and UART communication between the CAPTIVATE-PGMR and the CapTIvate MCU Board when the MCU Board is (...)

Features
  • Provides digital isolation for Spy-by-Wire, I2C, and UART
  • No shared power or ground
EVALUATION BOARDS Download
document-generic User guide
79
Description
The ISO71XXDBQ-EVM evaluation module (EVM) comes with the ISO7131CCDBQ device soldered down. You can remove this device and solder down any of the 4-channel ISO714xCCDBQ devices. This EVM lets you evaluate the isolator performance and parameters. For safety reasons, the EVM is not (...)
Features
  • User configurable for use with triple- and quad-channel ISO71xx isolators
  • Enables opposing channel testing with the ISO7131, ISO7141 and ISO7142
  • Same direction evaluation can be performed using the ISO7140
  • User-configurable load options for the input and output channels

Design tools & simulation

SIMULATION MODELS Download
SLLM206.ZIP (27 KB) - IBIS Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
8-Channel Digital Input Module for Programmable Logic Controllers (PLC)
TIDA-00017 This TI Design provides a complete 8-channel digital input module front-end reference design for Programmable Logic Controllers (PLCs). It is designed and fully tested to meet IEC61000-4 EMC and surge requirements for industrial automation systems thus reducing the time to market for customer. The (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SSOP (DBQ) 16 View options

Ordering & quality

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