Top

Product details

Parameters

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 2/2 Isolation rating (Vrms) 5000, 3000 Data rate (Max) (Mbps) 100 Rating Catalog VCC (Max) (V) 5.5 Surge voltage capability (Vpk) 12800, 6400 Current consumption per channel (DC) (Typ) (mA) 0.72 Current consumption per channel (1 Mbps) (Typ) (mA) 1.45 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 SSOP (DBQ) 16 29 mm² 4.9 x 6 open-in-new Find other Digital isolators

Features

  • 100 Mbps data rate
  • Robust isolation barrier:
    • >100-year projected lifetime at 1500 VRMS working voltage
    • Up to 5000 VRMS isolation rating
    • Up to 12.8 kV surge capability
    • ±100 kV/µs typical CMTI
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25-V to 5.5-V level translation
  • Default output high (ISO774x) and low (ISO774xF) options
  • Wide temperature range: –55°C to 125°C
  • Low power consumption, typical 1.5 mA per channel at 1 Mbps
  • Low propagation delay: 10.7 ns typical
    (5-V Supplies)
  • 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
  • Wide-SOIC (DW-16) and QSOP (DBQ-16) package options
  • Automotive version available: ISO774x-Q1
  • Safety-related certifications:
    • DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
    • CSA, CQC, and TUV certifications

All trademarks are the property of their respective owners.

open-in-new Find other Digital isolators

Description

The ISO774x devices are high-performance, quad-channel digital isolators with 5000 VRMS (DW package) and 3000 VRMS (DBQ package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7741B device is designed for applications that require basic insulation ratings only.

The ISO774x 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 a double capacitive silicon dioxide (SiO2) insulation barrier. These devices come 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. The ISO7740 device has all four channels in the same direction, the ISO7741 device has three forward and one reverse-direction channels, and the ISO7742 device has two forward and two reverse-direction channels. If the input power or signal is lost, default output is high for devices without suffix F and low for devices with suffix F. See the 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 RS-485, RS-232, and CAN, 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 ISO774x devices have been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO774x devices are available in 16-pin SOIC and QSOP packages.

open-in-new Find other Digital isolators
Download

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 19
Type Title Date
* Datasheet ISO774x High-Speed, Robust-EMC Reinforced and Basic Quad-Channel Digital Isolators datasheet (Rev. G) Feb. 14, 2020
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
Application notes Introduction to HVDC Architecture and Solutions for Control and Protection Feb. 25, 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 How to isolate signal and power for I2C (Rev. A) Oct. 02, 2018
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 Designing an Isolated I2C Bus interface by using digital isolators (Rev. A) Mar. 13, 2018
Application notes Isolation Glossary (Rev. A) Sep. 19, 2017
User guides ISO77xxDBQ Triple- and Quad-Digital Isolator Evaluation Module Jun. 02, 2016
User guides ISO77xx Triple/Quad Digital Isolator Evaluation Module User's Guide May 05, 2016

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
ISO7741DBQEVM is an Evaluaiton Module used to evaluate the high performance, reinforced quad channel digital isolator ISO7741 in 16-Pin SSOP package (Package Code-DBQ). The EVM features enough test points & jumper options for one to evaluate the device with minimal external components.
Features
  • High Speed, Robust EMC Dual-Channel Digital Isolator
  • Wide Supply & Level Translation Range: 2.25V to 5.5V
  • High Signaling Rate: Up to 100Mbps
  • Low Propagation Delay: 11ns Typical (5V Supplies)
  • Isolation Barrier Life > 100 Years
EVALUATION BOARDS Download
document-generic User guide
$49.00
Description
The ISO7741EVM is an evaluaiton module (EVM) to evaluate the ISO7741. The ISO7741 is a high-performance, reinforced quad-channel digital isolator in a wide-body SOIC package (package code DW). The EVM features enough test points and jumber options for you to evaluate the (...)
Features
  • High-speed, robust EMC quad-channel digital isolator
  • Wide supply & level translation range: 2.25 V to 5.5 V
  • High signaling rate: Up to 100 Mbps
  • Low propagation delay: 11 ns typical (5-V supplies)
  • Isolation barrier life > 100 years

Design tools & simulation

SIMULATION MODELS Download
SLLM312A.ZIP (62 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
1-kW, 80 Plus titanium, GaN CCM totem pole bridgeless PFC and half-bridge LLC reference design
TIDA-010062 This reference design is a digitally controlled, compact 1-kW AC/DC power supply design for server power supply unit (PSU) and telecom rectifier applications. The highly efficient design supports two main power stages, including a front-end continuous conduction (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
HART-enabled PLC analog input module reference design
TIDA-060020 — This reference design is a single-channel, 4-mA to 20-mA analog input module that supports the highway addressable remote transducer (HART) communication protocol, enabling bidirectional digital communication between field transmitters and programmable logic controllers (PLCs). The loop current (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (DW) 16 View options
SSOP (DBQ) 16 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​