ISO7820LL Buffer Datasheet

ISO7820LL Datasheet PDF, Equivalent


Part Number

ISO7820LL

Description

Isolated Dual-LVDS Buffer

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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ISO7820LL
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ISO7820LL, ISO7821LL
SLLSET8A – MARCH 2016 – REVISED AUGUST 2016
ISO782xLL High-Performance, 8000-VPK Reinforced Isolated Dual-LVDS Buffer
1 Features
2 Applications
1 Complies with TIA/EIA-644-A LVDS Standard
• Signaling Rate: Up to 100 Mbps
• Wide Supply Range: 2.25 V to 5.5 V
• Wide Temperature Range: –55°C to +125°C
Ambient
• Low Power Consumption, per Channel at 100
Mbps:
– Typical 9.3-mA (ISO7820LL)
– Typical 9.5-mA (ISO7821LL)
• Low Propagation Delay: 17-ns Typical
• 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 and Extra-Wide Body SOIC-16
Package Options
• Isolation Surge Withstand Voltage 12800 VPK
• Safety-Related Certifications:
– 8000-VPK Reinforced Isolation per DIN V VDE
V 0884-10 (VDE V 0884-10):2006-12
– 5700-VRMS Isolation for 1 minute per UL 1577
– CSA Component Acceptance Notice 5A, IEC
60950–1 and IEC 60601–1 End Equipment
Standards
– TUV Certification per EN 61010-1 and EN
60950-1
– GB4943.1-2011 CQC Certification
– All Certifications are Planned
• Motor Control
• Test and Measurement
• Industrial Automation
• Medical Equipment
• Communication Systems
3 Description
The ISO782xLL family of devices is a high-
performance, isolated dual-LVDS buffer with 8000-
VPK isolation voltage. This device provides high
electromagnetic immunity and low emissions at low-
power consumption, while isolating the LVDS bus
signal. Each isolation channel has an LVDS receive
and transmit buffer separated by silicon dioxide
(SiO2) insulation barrier.
The ISO7820LL device has two forward-direction
channels. The ISO7821LL device has one forward
and one reverse-direction channel.
Through innovative chip design and layout
techniques, the electromagnetic compatibility of the
ISO782xLL family of devices has been significantly
enhanced to ease system-level ESD, EFT, surge, and
emission compliance.
The ISO782xLL family of devices is available in 16-
pin SOIC wide-body (DW) package and extra-wide
body (DWW) packages.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
ISO7820LL
ISO7821LL
DW (16)
DWW (16)
10.30 mm × 7.50 mm
10.30 mm × 14.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VCCI
Isolation
Capacitor
VCCO
INx+
INx±
LVDS RX
LVDS TX
OUTx+
OUTx±
ENx
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.

ISO7820LL
ISO7820LL, ISO7821LL
SLLSET8A – MARCH 2016 – REVISED AUGUST 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 ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Power Ratings........................................................... 5
6.6 Insulation Specifications............................................ 6
6.7 Safety-Related Certifications..................................... 7
6.8 Safety Limiting Values .............................................. 7
6.9 DC Electrical Characteristics .................................... 8
6.10 DC Supply Current Characteristics ......................... 9
6.11 Switching Characteristics ...................................... 11
6.12 Insulation Characteristics Curves ......................... 12
6.13 Typical Characteristics .......................................... 13
7 Parameter Measurement Information ................ 16
8 Detailed Description ............................................ 19
8.1 Overview ................................................................. 19
8.2 Functional Block Diagram ....................................... 19
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 ..................... 25
11 Layout................................................................... 26
11.1 Layout Guidelines ................................................. 26
11.2 Layout Example .................................................... 26
12 Device and Documentation Support ................. 27
12.1 Documentation Support ........................................ 27
12.2 Receiving Notification of Documentation Updates 27
12.3 Community Resources.......................................... 27
12.4 Trademarks ........................................................... 27
12.5 Electrostatic Discharge Caution ............................ 27
12.6 Glossary ................................................................ 27
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 Original (March 2016) to Revision A
Page
• Changed the device status from Product Preview to Production Data and released full version of the data sheet .............. 1
2 Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
Product Folder Links: ISO7820LL ISO7821LL


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community ISO7820LL, ISO7821LL SLLSET8 A – MARCH 2016 – REVISED AUGUST 201 6 ISO782xLL High-Performance, 8000-VPK Reinforced Isolated Dual-LVDS Buffer 1 Features 2 Applications •1 Complie s with TIA/EIA-644-A LVDS Standard • Signaling Rate: Up to 100 Mbps • Wide Supply Range: 2.25 V to 5.5 V • Wide Temperature Range: –55°C to +125°C Ambient • Low Power Consumption, per Channel at 100 Mbps: – Typical 9.3-m A (ISO7820LL) – Typical 9.5-mA (ISO78 21LL) • Low Propagation Delay: 17-ns Typical • Industry leading CMTI (min) : ±100 kV/μs • Robust Electromagnet ic Compatibility (EMC) • System-Level ESD, EFT, and Surge Immunity • Low E missions • Isolation Barrier Life: > 40 Years • Wide Body and Extra-Wide B ody SOIC-16 Package Options • Isolati on Surge Withstand Voltage 12800 VPK Safety-Related Certifications: – 80 00-VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 – 5700-VRMS Isolation for 1 min.
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