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ISO7742 Datasheet Preview

ISO7742 Datasheet

Robust-EMC Reinforced Quad-Channel Digital Isolators

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ISO7740, ISO7741, ISO7742
SLLSEP4F – MARCH 2016 – REVISED MAY 2019
ISO774x High-Speed, Robust-EMC Reinforced Quad-Channel Digital Isolators
1 Features
1 100 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 V VDE V 0884-11:2017-01
– UL 1577 component recognition program
– CSA component acceptance notice 5A, IEC
60950-1 and IEC 60601-1 end equipment
standards
– CQC approval per GB4943.1-2011
– TUV certification according to EN 60950-1 and
EN 61010-1
– All certifications complete
2 Applications
• Industrial automation
• Motor control
• Power supplies
• Solar inverters
• Medical equipment
3 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 of devices has
reinforced insulation ratings according to VDE, CSA,
TUV and CQC.
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. This device
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. 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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ISO7740
ISO7741
ISO7742
SOIC (DW)
SSOP (DBQ)
10.30 mm × 7.50 mm
4.90 mm × 3.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VCCI
VCCO
Series Isolation
Capacitors
INx
OUTx
ENx
GNDI
GNDO
Copyright © 2016, Texas Instruments Incorporated
VCCI=Input supply, VCCO=Output supply
GNDI=Input ground, GNDO=Output ground
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

ISO7742 Datasheet Preview

ISO7742 Datasheet

Robust-EMC Reinforced Quad-Channel Digital Isolators

No Preview Available !

ISO7740, ISO7741, ISO7742
SLLSEP4F – MARCH 2016 – REVISED MAY 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description Continued .......................................... 5
6 Pin Configuration and Functions ......................... 6
7 Specifications......................................................... 8
7.1 Absolute Maximum Ratings ...................................... 8
7.2 ESD Ratings.............................................................. 8
7.3 Recommended Operating Conditions....................... 8
7.4 Thermal Information .................................................. 9
7.5 Power Rating............................................................. 9
7.6 Insulation Specifications.......................................... 10
7.7 Safety-Related Certifications................................... 11
7.8 Safety Limiting Values ............................................ 11
7.9 Electrical Characteristics—5-V Supply ................... 12
7.10 Supply Current Characteristics—5-V Supply ........ 13
7.11 Electrical Characteristics—3.3-V Supply .............. 14
7.12 Supply Current Characteristics—3.3-V Supply ..... 15
7.13 Electrical Characteristics—2.5-V Supply .............. 16
7.14 Supply Current Characteristics—2.5-V Supply ..... 17
7.15 Switching Characteristics—5-V Supply................. 18
7.16 Switching Characteristics—3.3-V Supply.............. 18
7.17 Switching Characteristics—2.5-V Supply.............. 19
7.18 Insulation Characteristics Curves ......................... 20
7.19 Typical Characteristics .......................................... 21
8 Parameter Measurement Information ................ 23
9 Detailed Description ............................................ 25
9.1 Overview ................................................................. 25
9.2 Functional Block Diagram ....................................... 25
9.3 Feature Description................................................. 26
9.4 Device Functional Modes........................................ 27
10 Application and Implementation........................ 29
10.1 Application Information.......................................... 29
10.2 Typical Application ................................................ 29
11 Power Supply Recommendations ..................... 32
12 Layout................................................................... 33
12.1 Layout Guidelines ................................................. 33
12.2 Layout Example .................................................... 33
13 Device and Documentation Support ................. 34
13.1 Documentation Support ........................................ 34
13.2 Related Links ........................................................ 34
13.3 Receiving Notification of Documentation Updates 34
13.4 Community Resources.......................................... 34
13.5 Trademarks ........................................................... 34
13.6 Electrostatic Discharge Caution ............................ 35
13.7 Glossary ................................................................ 35
14 Mechanical, Packaging, and Orderable
Information ........................................................... 35
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision E (January 2018) to Revision F
Page
• Made editorial and cosmetic changes throughout the document .......................................................................................... 1
• Changed From: "Isolation Barrier Life: >40 Years" To: " >100-year projected lifetime at 1500 VRMS working voltage"
in Features.............................................................................................................................................................................. 1
• Added "Up to 5000 VRMS isolation rating" in Features............................................................................................................ 1
• Added "Up to 12.8 kV surge capability" in Features .............................................................................................................. 1
• Added "±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier" in Features ......................................... 1
• Added "Automotive version available: ISO774x-Q1" in Features........................................................................................... 1
• Changed From: "All Certifications Complete except CQC Approval of DBQ-16 Package Devices" To: "All
certifications complete" in Features ....................................................................................................................................... 1
• Updated Simplified Schematic to show two isolation capacitors in series per channel instead of a single isolation
capacitor ................................................................................................................................................................................. 1
• Added "Contact discharge per IEC 61000-4-2" specification of ±8000 V in ESD Ratings..................................................... 8
• Added the following table note to Data rate specification: "100 Mbps is the maximum specified data rate, although
higher data rates are possible." ............................................................................................................................................. 8
• Changed VIORM value for DW-16 package From: "1414 VPK" To: "2121 VPK" in Insulation Specifications table.................. 10
• Changed VIOWM values for DW-16 package From: "1000 VRMS" and "1414 VDC" To: "1500 VRMS" and "2121 VDC" in
Insulation Specifications table ............................................................................................................................................. 10
• Added 'see Figure 28' to TEST CONDITIONS of VIOWM specification in Insulation Specifications ...................................... 10
• Changed VIOSM TEST CONDITIONS From: "Test method per IEC 60065" To: "Test method per IEC 62368-1" in
Insulation Specifications table .............................................................................................................................................. 10
• Updated certification information in Safety-Related Certifications table .............................................................................. 11
2 Submit Documentation Feedback
Copyright © 2016–2019, Texas Instruments Incorporated
Product Folder Links: ISO7740 ISO7741 ISO7742


Part Number ISO7742
Description Robust-EMC Reinforced Quad-Channel Digital Isolators
Maker etcTI
Total Page 30 Pages
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