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ISOW774X

更新时间： 2024-11-22 02:49:03
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德州仪器 - TI /
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62页 4699K
描述
ISOW774x Quad-Channel Digital Isolator with Integrated Low-Emissions, Low-Noise DC-DC Converter

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ISOW7740, ISOW7741, ISOW7742, ISOW7743, ISOW7744  
SLLSFK1B – SEPTEMBER 2021 – REVISED JANUARY 2022  
ISOW774x 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 and EN  
55032 Class B with >5 dB margin on 2 layer  
board  
– Low frequency power converter at 25 MHz  
enabling low noise performance  
– Low output ripple: 24 mV  
High efficiency output power  
– Efficiency at max load: 46%  
– Up to 0.55-W output power  
– VISOOUT accuracy of 5%  
– 5 V to 5 V: Max available load current = 110 mA  
– 5 V to 3.3 V: Max available load current = 140  
mA  
– 3.3 V to 3.3 V: Max available load current = 60  
mA  
3 Description  
The ISOW77xx family of devices are galvanically-  
isolated quad-channel digital isolator with an  
integrated high-efficiency power converter with low  
emissions. The integrated DC-DC converter provides  
up to 550 mW of isolated power, eliminating the  
need for a separate isolated power supply in space-  
constrained isolated designs.  
•
Device Information  
ISOW774x  
ISOW774xB  
FEATURE  
ISOW774xF  
ISOW774xFB  
Protection Level  
Surge Test Voltage  
Isolation Rating  
Reinforced  
10 kVPK  
Basic  
•
•
Independent power supply for channel isolator &  
power converter  
7.8 kVPK  
5000 VRMS  
5000 VRMS  
– 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  
1000 VRMS  
1500VPK  
/
1000 VRMS  
1500VPK  
/
Working Voltage  
Package  
DFM (20)  
DFM (20)  
12.83 mm × 7.5  
mm  
12.83 mm × 7.5  
mm  
Body Size (Nom)  
•
•
•
Reinforced and Basic isolation options  
High CMTI: 100-kV/µs (typical)  
Safety Related Certifications (Planned):  
VISOIN  
VIO  
EN_IO2  
OUTA  
– VDE reinforced and basic insulation per DIN  
VDE V 0884-11:2017-01  
– UL 1577 component recognition program  
– IEC 62368-1, IEC 61010-1, IEC 60601-1 and  
GB 4943.1-2011 certifications  
Tx  
Tx  
INA  
INB  
Rx  
Rx  
Rx  
Tx  
OUTB  
OUTC  
IND  
INC  
Tx  
Rx  
OUTD  
•
•
Extended temperature range: –40°C to +125°C  
20-pin wide body SOIC package  
EN_IO1  
GNDIO  
GISOIN  
GND1  
GN  
D2  
VSEL  
VDD  
DC-DC  
Primary  
DC-DC  
Secondary  
EN/FLT  
GND1  
VISOOUT  
GND2  
ISOW7741 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. PRODUCTION DATA.  
 
 
 
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