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ISO7520

更新时间： 2024-09-16 11:48:55
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德州仪器 - TI /
页数 文件大小 规格书
15页 323K
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Low-Power 5 KV(rms) Dual Digital Isolators

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ISO7520 数据手册

 浏览型号ISO7520的Datasheet PDF文件第2页浏览型号ISO7520的Datasheet PDF文件第3页浏览型号ISO7520的Datasheet PDF文件第4页浏览型号ISO7520的Datasheet PDF文件第5页浏览型号ISO7520的Datasheet PDF文件第6页浏览型号ISO7520的Datasheet PDF文件第7页 
ISO7520  
ISO7521  
www.ti.com  
SLLSE39 –JUNE 2010  
Low-Power 5 KV(rms) Dual Digital Isolators  
Check for Samples: ISO7520, ISO7521  
The devices have TTL input thresholds and require  
two supply voltages, 3.3V or 5V, or any combination.  
All inputs are 5-V tolerant when supplied from a 3.3-V  
supply.  
1
FEATURES  
•
•
•
•
•
Highest Signaling Rate: 1 Mbps  
Propagation Delay Less Than 20 ns  
Low Power Consumption  
Note: The ISO7520 and ISO7521 are specified for  
signaling rates up to 1 Mbps. Due to their fast  
response time, under most cases, these devices will  
also transmit data with much shorter pulse widths.  
Designers should add external filtering to remove  
spurious signals with input pulse duration < 20 ns if  
desired.  
Wide Ambient Temperature: –40°C to 105°C  
Safety and Regulatory Approvals  
–
–
–
–
5 KV(rms) for 1 minute per UL 1577  
CSA Component Acceptance Notice 5A  
IEC 60747-5-2 (VDE 0884 Rev. 2)  
IEC 60601-1, 60950-1, & 61010-1 End  
Equipment Standards  
ISO 7520  
GND 2  
NC  
GND 1  
NC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
•
•
50 kV/µs Transient Immunity Typical  
Operates From 3.3V or 5V Supply and Logic  
Levels  
VCC 1  
VCC 2  
OUTA  
OUTB  
NC  
INA  
INB  
NC  
APPLICATIONS  
•
Opto-Coupler Replacement in:  
GND 1  
NC  
NC  
GND 2  
–
–
Medical Applications for IEC 60601-1  
5KVrms Rated  
Industrial Field-Bus  
ISO 7521  
GND 2  
NC  
GND 1  
NC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
–
–
–
ProfiBus  
ModBus  
DeviceNetTM Data Buses  
VCC 1  
OUTA  
INB  
VCC 2  
INA  
OUTB  
NC  
–
–
–
–
Servo Control Interface  
Motor Control  
Power Supply  
NC  
NC  
GND 1  
NC  
GND 2  
Battery Packs  
NC = No Internal Connection  
DESCRIPTION  
The ISO7520 and ISO7521 provide double galvanic  
isolation of up to 5KVrms for 1 minute per UL. These  
digital isolators have two isolated channels with  
uni-directional (ISO7520) and bi-directional (ISO7521)  
channel configurations. Each isolation channel has a  
logic input and output buffer separated by a silicon  
oxide (SiO2) insulation barrier. Used in conjunction  
with isolated power supplies, these devices prevent  
noise currents on a data bus or other circuits from  
entering the local ground and interfering with or  
damaging sensitive circuitry.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2010, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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