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ISO7230A PDF预览

ISO7230A

更新时间： 2024-01-15 11:26:49
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
17页 747K
描述
One Megabit per Second Triple Digital Isolators

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中文翻译

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ISO7230A 数据手册

 浏览型号ISO7230A的Datasheet PDF文件第2页浏览型号ISO7230A的Datasheet PDF文件第3页浏览型号ISO7230A的Datasheet PDF文件第4页浏览型号ISO7230A的Datasheet PDF文件第5页浏览型号ISO7230A的Datasheet PDF文件第6页浏览型号ISO7230A的Datasheet PDF文件第7页 
ISO7230A  
ISO7231A  
www.ti.com ........................................................................................................................................................................................................ SLLS906–MAY 2008  
One Megabit per Second Triple Digital Isolators  
1
FEATURES  
•
1-Mbps Signaling Rate  
•
•
High Electromagnetic Immunity  
(see application note SLLA181)  
–
–
–
Low Channel-to-Channel Output Skew;  
1 ns max  
–40°C to 125°C Operating Range  
Low Pulse-Width Distortion (PWD);  
2 ns max  
APPLICATIONS  
•
•
•
•
Industrial Fieldbus  
Low Jitter Content; 1 ns Typ at 150 Mbps  
Computer Peripheral Interface  
Servo Control Interface  
Data Acquisition  
•
•
Typical 25-Year Life at Rated Working Voltage  
(see application note SLLA197 and Figure 10)  
4000-Vpeak Isolation, 560-Vpeak VIORM  
–
UL 1577, IEC 60747-5-2 (VDE 0884, Rev 2),  
IE 61010-1 and CSA Approved  
•
•
4 kV ESD Protection  
Operate With 3.3-V or 5-V Supplies  
DESCRIPTION  
The ISO7230A and ISO7231A are triple-channel digital isolators each with multiple channel configurations and  
output enable functions. These devices have logic input and output buffers separated by TI’s silicon dioxide  
(SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage,  
isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and  
interfering with or damaging sensitive circuitry.  
The ISO7230 triple-channel device has all three channels in the same direction while the ISO7231 has two  
channels in one direction and one channel in opposition. These devices have an active-high output enable that  
when driven to a low level, places the output in a high-impedance state and turns off internal bias circuitry to  
conserve power.  
The ISO7230A and ISO7231A have TTL input thresholds and a noise-filter at the input that prevents transient  
pulses of up to 2 ns in duration from being passed to the output of the device.  
In each device a periodic update pulse is sent across the isolation barrier to ensure the proper dc level of the  
output. If this dc-refresh pulse is not received, the input is assumed to be unpowered or not being actively driven,  
and the failsafe circuit drives the output to a logic high state. (Contact TI for a logic low failsafe option).  
These devices require two supply voltages of 3.3-V, 5-V, or any combination. All inputs are 5-V tolerant when  
supplied from a 3.3-V supply and all outputs are 4-mA CMOS. These devices are characterized for operation  
over the ambient temperature range of –40°C to 125°C.  
ISO7230  
ISO7231  
DW PACKAGE  
DW PACKAGE  
V
V
V
V
CC2  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
CC1  
CC2  
CC1  
GND1  
GND2  
GND1  
GND2  
IN  
A
IN  
B
IN  
C
OUT  
A
IN  
IN  
OUT  
A
A
OUT  
B
OUT  
B
B
IN  
C
OUT  
C
OUT  
C
NC  
NC  
NC  
NC  
NC  
EN  
EN  
EN  
2
1
GND1  
GND2  
GND1  
GND2  
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.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008, Texas Instruments Incorporated  
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ISO7230A 替代型号

型号 品牌 替代类型 描述 数据表
ISO7231C TI

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