ISO7841 Datasheet, PDF (1/37 Pages) Texas Instruments – High-Performance, 8000-VPK Reinforced Quad-Channel Digital Isolator

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ISO7841, ISO7841F
SLLSEM3F – NOVEMBER 2014 – REVISED APRIL 2016
ISO7841x High-Performance, 8000-V_PK 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-V_PK Reinforced Isolation per DIN V VDE
V 0884-10 (VDE V 0884-10):2006-12
– 5.7-kV_RMS 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 ISO7841x device is a high-performance, quad-
channel digital isolator with a 8000-V_PK 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 ISO7841 device has three forward
and one reverse-direction channels. If the input power
or signal is lost, the default output is high for the
ISO7841 device and low for the ISO7841F 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
ISO7841 device has been significantly enhanced to
ease system-level ESD, EFT, surge, and emissions
compliance.
The ISO7841 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)
ISO7841
ISO7841F
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
V_CCI
Isolation
Capacitor
V_CCO
INx
OUTx
ENx
GNDI
GNDO
V_CCI and GNDI are supply and ground
connections respectively for the input
channels.
V_CCO 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.