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ISOW7844DWER Datasheet(PDF) 1 Page - Texas Instruments

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Part # ISOW7844DWER
Description  High-Performance, 5000-VRMS Reinforced Quad-Channel Digital Isolators With Integrated High-Efficiency, Low-Emissions DC-DC Converter
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ISOW7844DWER Datasheet(HTML) 1 Page - Texas Instruments

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DC-DC
Primary
DC-DC
Secondary
VCC
VISO
INx
OUTx
VSI
VSO
Isolation Capacitor
Isolation Transformer
GNDI
GNDO
Product
Folder
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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.
ISOW7840, ISOW7841, ISOW7842, ISOW7843, ISOW7844
SLLSEY2 – MARCH 2017
ISOW784x High-Performance, 5000-VRMS Reinforced Quad-Channel Digital Isolators With
Integrated High-Efficiency, Low-Emissions DC-DC Converter
1
1 Features
1
Integrated High-Efficiency DC-DC Converter With
On-Chip Transformer
3-V to 5.5-V Wide Input Supply Range
Regulated 5-V or 3.3-V Output
Up to 0.65-W Output Power
5 V to 5 V; 5 V to 3.3 V: Available Load Current
130 mA
3.3 V to 3.3 V: Available Load Current
≥ 75 mA
Soft-Start to Limit Inrush Current
Overload and Short-Circuit Protection
Thermal Shutdown
Default Output: High and Low Options
Signaling Rate Up to 100 Mbps
Low Propagation Delay: 13 ns Typ (5-V Supply)
High CMTI: ±100 kV/µs Minimum
Robust Electromagnetic Compatibility (EMC)
System-Level ESD, EFT, and Surge Immunity
Low Emissions
16-pin Wide SOIC Package
Extended Temperature Range: –40°C to +125°C
Safety-Related Certifications:
7071-VPK Reinforced Isolation per DIN V VDE
V 0884-10 (VDE V 0884-10): 2006-12
5000-VRMS Isolation for 1 Minute per UL 1577
CSA Component Acceptance Notice 5A, IEC
60950-1 and IEC 60601-1 End Equipment
Standards
CQC Approval per GB4943.1-2011
TUV Certification According to EN 60950-1
and EN 61010-1
All Agency Certifications are Planned
2 Applications
Industrial Automation
Motor Control
Grid Infrastructure
Medical Equipment
Test and Measurement
3 Description
The ISOW784x is a family of high-performance,
quad-channel reinforced digital isolators with an
integrated
high-efficiency
power
converter.
The
integrated DC-DC converter provides up to 650 mW
of isolated power at high efficiency and can be
configured for various input and output voltage
configurations. Therefore these devices eliminate the
need for a separate isolated power supply in space-
constrained isolated designs.
The ISOW784x family of devices provide high
electromagnetic immunity and low emissions while
isolating CMOS or LVCMOS digital I/Os. The signal-
isolation channel has a logic input and output buffer
separated by a silicon dioxide (SiO2) insulation
barrier,
whereas,
power
isolation
uses
on-chip
transformers separated by thin film polymer as
insulating material. Various configurations of forward
and reverse channels are available. If the input signal
is lost, the default output is high for the ISOW784x
devices and low for the devices with the F suffix (see
the Device Features).
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ISOW7840
ISOW7841
ISOW7842
ISOW7843
ISOW7844
SOIC (16)
10.30 mm × 7.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VCC is the primary supply voltage
referenced to GND1. VISO is the isolated
supply voltage referenced to GND2.
VSI and VSO can be either VCC or VISO
depending on the channel direction.
VSI is the input-side supply voltage
referenced to GNDI and VSO is the output-
side supply voltage referenced to GNDO.


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