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ISOW7741F

更新时间： 2024-11-19 02:50:55
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德州仪器 - TI /
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41页 2191K
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ISOW7741 5000-VRMS Reinforced Quad-Channel Digital Isolator with Integrated Low-Emissions, Low-Noise DC-DC Converter

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ISOW7741  
SLLSFK1 – DECEMBER 2020  
ISOW7741 5000-VRMS Reinforced Quad-Channel Digital Isolator with Integrated Low-  
Emissions, Low-Noise DC-DC Converter  
1 Features  
2 Applications  
•
•
100 Mbps data rate  
Integrated DC-DC converter with low-emissions,  
low-noise  
•
•
•
•
•
Factory automation  
Motor control  
Grid infrastructure  
Medical equipment  
Test and measurement  
– Emission optimized to meet CISPR 32 limits  
– Low frequency power converter at 25 MHz  
enabling low noise performance  
3 Description  
– Low output ripple: 24 mV  
The ISOW7741 device is a galvanically-isolated quad-  
channel digital isolator with an integrated high-  
efficiency power converter with low emissions. The  
integrated DC-DC converter provides up to 500 mW  
of isolated power, eliminating the need for a separate  
isolated power supply in space-constrained isolated  
designs.  
•
•
High efficiency output power  
– Efficiency at max load: 45%  
– Up to 0.5-W output power  
– Visoout accuracy of 5%  
– 5 V to 5 V: Available load current ≥ 110 mA  
– 5 V to 3.3 V: Available load current ≥ 110 mA  
– 3.3 V to 3.3 V: Available load current ≥ 60 mA  
Independent power supply for channel isolator &  
power converter  
Device Information  
PART NUMBER(1)  
PACKAGE  
BODY SIZE (NOM)  
ISOW7741  
ISOW7741F  
DFM (20)  
12.83 mm × 7.5 mm  
– Logic supply (VIO): 1.71-V to 5.5-V  
– Power converter supply (VDD): 3-V to 5.5-V  
Robust electromagnetic compatibility (EMC)  
– System-level ESD, EFT, and surge immunity  
– ±8 kV IEC 61000-4-2 contact discharge  
protection across isolation barrier  
Reinforced isolation barrier:  
– >100-year projected lifetime at 1 kVRMS working  
voltage  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
•
•
VISOIN  
VIO  
EN_IO2  
OUTA  
Tx  
Tx  
Rx  
Rx  
INA  
INB  
OUTB  
Rx  
Tx  
Tx  
Rx  
OUTC  
IND  
INC  
– Up to 5000 VRMS isolation rating  
– Up to 10 kVPK surge capability  
– ±100 kV/µs typical CMTI  
OUTD  
EN_IO1  
GND2  
GND1  
GND1  
GND2  
•
Safety-Related Certifications (pending):  
– VDE reinforced insulation per DIN VDE V  
0884-11:2017-01  
VSEL  
VDD  
DC-DC  
DC-DC  
EN_DCDC  
GND1  
Primary  
Secondary  
VISOOUT  
GND2  
– UL 1577 component recognition program  
– IEC 60950-1, IEC 62368-1, IEC 61010-1, IEC  
60601-1 and GB 4943.1-2011 certifications  
Extended temperature range: –40°C to +125°C  
20-pin wide SOIC package  
•
•
Simplified Schematic  
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. ADVANCE INFORMATION for preproduction products; subject to change  
without notice.  
 
 
 
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