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ISO7831F Datasheet Preview

ISO7831F Datasheet

Triple Digital Isolators

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ISO7831, ISO7831F
SLLSEP8B – JULY 2015 – REVISED JUNE 2016
ISO7831x High-Performance, 8000-VPK Reinforced Triple Digital Isolators
1 Features
1 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: > 40 Years
• SOIC-16 Wide Body (DW) and Extra-Wide Body
(DWW) Package Options
• Safety-Related Certifications:
– 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, VDE, TUV and Planned for CSA and CQC
2 Applications
Each isolation channel has a logic input and output
buffer separated by 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 ISO7831x device
has two forward and one reverse-direction channels.
If the input power or signal is lost, the default output
is high for the ISO7831 device and low for the
ISO7831F device. See Device Functional Modes for
further details.
Used in conjunction with isolated power supplies, this
device helps prevent 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
ISO7831x has been significantly enhanced to ease
system-level ESD, EFT, surge, and emissions
compliance. ISO7831x is available in a 16-pin SOIC
wide-body (DW) and extra-wide body (DWW)
packages.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
ISO7831
ISO7831F
DW (16)
DWW (16)
10.30 mm × 7.50 mm
10.30 mm × 14.0 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VCCI
Isolation
Capacitor
VCCO
INx OUTx
ENx
• Industrial Automation
• Motor Control
• Power Supplies
• Solar Inverters
• Medical Equipment
• Hybrid Electric Vehicles
3 Description
The ISO7831x device is a high-performance, 3-
channel digital isolator with 8000-VPK isolation
voltage. This device has reinforced isolation
certifications according to VDE, CSA, TUV and CQC.
The isolator provides high electromagnetic immunity
and low emissions at low power consumption, while
isolating CMOS or LVCMOS digital I/Os.
GNDI
GNDO
Copyright © 2016, Texas Instruments Incorporated
VCCI and GNDI are supply and ground
connections respectively for the input
channels.
VCCO and GNDO are supply and ground
connections respectively for the output
channels.
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.




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ISO7831F Datasheet Preview

ISO7831F Datasheet

Triple Digital Isolators

No Preview Available !

ISO7831, ISO7831F
SLLSEP8B – JULY 2015 – REVISED JUNE 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 4
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 6
6.5 Power Rating............................................................. 6
6.6 Insulation Characteristics .......................................... 7
6.7 Regulatory Information.............................................. 8
6.8 Safety Limiting Values .............................................. 8
6.9 Electrical Characteristics—5-V Supply ..................... 9
6.10 Supply Current Characteristics—5-V Supply .......... 9
6.11 Electrical Characteristics—3.3-V Supply .............. 10
6.12 Supply Current Characteristics—3.3-V Supply ..... 10
6.13 Electrical Characteristics—2.5-V Supply .............. 11
6.14 Supply Current Characteristics—2.5-V Supply ..... 11
6.15 Switching Characteristics—5-V Supply................. 12
6.16 Switching Characteristics—3.3-V Supply.............. 12
6.17 Switching Characteristics—2.5-V Supply.............. 13
6.18 Insulation Characteristics Curves ......................... 14
6.19 Typical Characteristics .......................................... 15
7 Parameter Measurement Information ................ 16
8 Detailed Description ............................................ 18
8.1 Overview ................................................................. 18
8.2 Functional Block Diagram ....................................... 18
8.3 Feature Description................................................. 19
8.4 Device Functional Modes........................................ 20
9 Application and Implementation ........................ 21
9.1 Application Information............................................ 21
9.2 Typical Application .................................................. 21
10 Power Supply Recommendations ..................... 23
11 Layout................................................................... 24
11.1 Layout Guidelines ................................................. 24
11.2 Layout Example .................................................... 24
12 Device and Documentation Support ................. 25
12.1 Documentation Support ........................................ 25
12.2 Related Links ........................................................ 25
12.3 Receiving Notification of Documentation Updates 25
12.4 Community Resources.......................................... 25
12.5 Trademarks ........................................................... 25
12.6 Electrostatic Discharge Caution ............................ 25
12.7 Glossary ................................................................ 25
13 Mechanical, Packaging, and Orderable
Information ........................................................... 26
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (September 2015) to Revision B
Page
• Changed Features From: Low Power Consumption, Typical 2.5 mA per Channel at 1 Mbps To: Low Power
Consumption, Typical 1.7 mA per Channel at 1 Mbps .......................................................................................................... 1
• Changed the isolation barrier life from > 25 years to > 40 years in the Features section ..................................................... 1
• Changed Features From: Safety and Regulatory Approvals To: Safety-Related Certifications ........................................... 1
• Updated the status of the certifications throughout the document ........................................................................................ 1
• Added the extra-wide body package (16 pin SOIC [DWW]) option........................................................................................ 1
• Changed the values for the DW package in the Thermal Information table ......................................................................... 6
• Moved Insulation Characteristics to the Specifications section.............................................................................................. 7
• Changed CIO Specification From: 2 pF To: ~1 pF ................................................................................................................. 7
• Added the climatic category parameter to the Insulation Characteristics table .................................................................... 7
• Moved Regulatory Information to the Specifications section.................................................................................................. 8
• Moved Safety Limiting Values to the Specifications section .................................................................................................. 8
• Changed the test conditions and values for the DW package in the Safety Limiting Values table........................................ 8
• Changed VCCO to VCCI in the minimum value for the input threshold voltage hysteresis parameter in the electrical
characteristics tables .............................................................................................................................................................. 9
• Added the VCM test condition to the CMTI parameter in the electrical characteristics tables. Also updated the
minimum value from 70 to 100 and deleted the maximum value of 100................................................................................ 9
• Changed tfs To: tDO in Switching Characteristics—5-V Supply............................................................................................. 12
• Changed tfs To: tDO in Switching Characteristics—3.3-V Supply.......................................................................................... 12
• Changed tfs To: tDO in Switching Characteristics—2.5-V Supply.......................................................................................... 13
• Added the lifetime projection graphs for DW and DWW packages to the Insulation Characteristics Curves section ........ 14
2 Submit Documentation Feedback
Copyright © 2015–2016, Texas Instruments Incorporated
Product Folder Links: ISO7831 ISO7831F


Part Number ISO7831F
Description Triple Digital Isolators
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