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ISO7842F Datasheet Preview

ISO7842F Datasheet

Quad-Channel Digital Isolator

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ISO7842, ISO7842F

SLLSEJ0G – OCTOBER 2014 – REVISED MARCH 2017

ISO7842x High-Performance, 8000-VPK Reinforced Quad-Channel Digital Isolator

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

• Wide Body SOIC-16 Package and Extra-Wide

Body SOIC-16 Package Options

• Safety and Regulatory Approvals:

– 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

• Industrial Automation

• Motor Control

• Power Supplies

• Solar Inverters

• Medical Equipment

• Hybrid Electric Vehicles

3 Description

The ISO7842x device is a high-performance, quad-

channel digital isolator with a 8000-VPK isolation

voltage. This device has reinforced isolation

certifications according to VDE, CSA, CQC, and TUV.

The isolator provides 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 silicon-dioxide (SiO2) insulation

barrier.

This device comes with enable pins that can be used

to put the respective outputs in high impedance for

multi-master driving applications and to reduce power

consumption. The ISO7842 device has two forward

and two reverse-direction channels. If the input power

or signal is lost, the default output is high for the

ISO7842 device and low for the ISO7842F device.

See the Device Functional Modes section 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 the

ISO7842 device has been significantly enhanced to

ease system-level ESD, EFT, surge, and emissions

compliance.

The ISO7842 device is available in 16-pin SOIC

wide-body (DW) and extra-wide body (DWW)

packages.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

ISO7842

ISO7842F

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

GNDI

GNDO

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.

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

ISO7842F Datasheet Preview

ISO7842F Datasheet

Quad-Channel Digital Isolator

No Preview Available !

ISO7842, ISO7842F

SLLSEJ0G – OCTOBER 2014 – REVISED MARCH 2017

www.ti.com

Table of Contents

1 Features .................................................................. 1

2 Applications ........................................................... 1

3 Description ............................................................. 1

4 Revision History..................................................... 2

5 Pin Configuration and Functions ......................... 5

6 Specifications......................................................... 6

6.1 Absolute Maximum Ratings ...................................... 6

6.2 ESD Ratings.............................................................. 6

6.3 Recommended Operating Conditions....................... 6

6.4 Thermal Information .................................................. 7

6.5 Power Ratings........................................................... 7

6.6 Insulation Specifications............................................ 8

6.7 Safety-Related Certifications..................................... 9

6.8 Safety Limiting Values .............................................. 9

6.9 Electrical Characteristics–5-V Supply ..................... 10

6.10 Supply Current Characteristics–5-V Supply.......... 10

6.11 Electrical Characteristics—3.3-V Supply .............. 11

6.12 Supply Current Characteristics—3.3-V Supply ..... 11

6.13 Electrical Characteristics—2.5-V Supply .............. 12

6.14 Supply Current Characteristics—2.5-V Supply ..... 12

6.15 Switching Characteristics—5-V Supply................. 13

6.16 Switching Characteristics—3.3-V Supply.............. 13

6.17 Switching Characteristics—2.5-V Supply.............. 14

6.18 Insulation Characteristics Curves ......................... 15

6.19 Typical Characteristics .......................................... 16

7 Parameter Measurement Information ................ 17

8 Detailed Description ............................................ 19

8.1 Overview ................................................................. 19

8.2 Functional Block Diagram ....................................... 19

8.3 Feature Description................................................. 20

8.4 Device Functional Modes........................................ 21

9 Application and Implementation ........................ 22

9.1 Application Information............................................ 22

9.2 Typical Application .................................................. 22

10 Power Supply Recommendations ..................... 24

11 Layout................................................................... 25

11.1 Layout Guidelines ................................................. 25

11.2 Layout Example .................................................... 25

12 Device and Documentation Support ................. 26

12.1 Documentation Support ........................................ 26

12.2 Related Links ........................................................ 26

12.3 Receiving Notification of Documentation Updates 26

12.4 Community Resources.......................................... 26

12.5 Trademarks ........................................................... 26

12.6 Electrostatic Discharge Caution ............................ 26

12.7 Glossary ................................................................ 26

13 Mechanical, Packaging, and Orderable

Information ........................................................... 27

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision F (April 2016) to Revision G

Page

• Changed part numbers in the Power Ratings table (previously Power Dissipation Characteristics) .................................... 7

• Changed the input-to-output test voltage parameter to apparent charge in the Insulation Specifications ............................ 8

• Added the Receiving Notification of Documentation Updates section ................................................................................. 26

Changes from Revision E (March 2016) to Revision F

Page

• Changed the number of years for the isolation barrier life in the Features section .............................................................. 1

• VDE certification is now complete ......................................................................................................................................... 1

• Changed VCCO to VCCI for the minimum value of the input threshold voltage hysteresis parameter in all electrical

characteristics tables ............................................................................................................................................................ 10

• Added VCM to the test condition of the common-mode transient immunity parameter in all electrical characteristics

tables .................................................................................................................................................................................... 10

• Added the lifetime projection graphs for DW and DWW packages to the Safety Limiting Values section ......................... 15

Changes from Revision D (December 2015) to Revision E

Page

• Changed the Safety and Regulatory Approvals list of Features ............................................................................................ 1

• Added Features "TUV Certification per EN 61010-1 and EN 60950-1" ................................................................................. 1

• Changed text in the first paragraph of the Description From: "certifications according to VDE, CSA, and CQC". To:

"certifications according to VDE, CSA, CQC, and TUV." ...................................................................................................... 1

• Added Note 1 to Insulation Characteristics ........................................................................................................................... 8

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