ISO7820 Datasheet, PDF (1/36 Pages) Texas Instruments – High-Performance, 8000 VPK Reinforced Dual Channel Digital Isolator

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ISO7820, ISO7820F
SLLSEP0A – JULY 2015 – REVISED MARCH 2016
ISO7820x High-Performance, 8000 V_PK Reinforced Dual 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: > 25 Years
• SOIC-16 Wide Body (DW) and Extra-Wide Body
(DWW) 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, TUV and Planned for VDE, CSA, and
CQC
3 Description
The ISO7820 is a high-performance, dual-channel
digital isolator with 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/O’s. Each isolation
channel has a logic input and output buffer separated
by silicon dioxide (SiO₂) insulation barrier. ISO7820
has two forward channels and no reverse-direction
channel. If the input power or signal is lost, default
output is 'high' for the ISO7820 and 'low' for the
ISO7820F device. Used in conjunction with isolated
power supplies, this device prevents 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 ISO7820
has been significantly enhanced to ease system-level
ESD, EFT, Surge and Emissions compliance.
ISO7820 is available in 16-pin SOIC wide-body (DW)
and extra-wide body (DWW) packages. The DWW
package option 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.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
ISO7820,
ISO7820F
SOIC, DW (16) 10.30 mm x 7.50 mm
Extra wide SOIC,
DWW (16)
10.30 mm × 14.0 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
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2 Applications
• Industrial Automation
• Motor Control
• Power Supplies
• Solar Inverters
• Medical Equipment
• Hybrid Electric Vehicles
Simplified Schematic
V_CCI
Isolation
Capacitor
V_CCO
INx
OUTx
ENx (DWW package only)
GNDI
GNDO
(1) V_CCI and GNDI are supply and ground
connections respectively for the input
channels.
(2) 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.