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ISL32457EIBZ PDF预览

ISL32457EIBZ

更新时间： 2024-02-13 17:54:44
品牌 Logo 应用领域
英特矽尔 - INTERSIL /
页数 文件大小 规格书
21页 1038K
描述
±60V Fault Protected, 3.3V to 5V, ±20V Common Mode Range, RS-485/RS-422 Transceivers with Cable Invert and ±15kV ESD

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ISL32457EIBZ 技术参数

生命周期：Unknown零件包装代码：MSOP, SOIC
包装说明：MSOP-8针数：8, 8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：3 weeks
风险等级：5.62其他特性：ALSO OPERATES IN VCC 4.5 TO 5.5 V
差分输出：YES驱动器位数：1
输入特性：DIFFERENTIAL SCHMITT TRIGGER接口集成电路类型：LINE TRANSCEIVER
接口标准：EIA-422; EIA-485JESD-30 代码：S-PDSO-G8
JESD-609代码：e3长度：3 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C最小输出摆幅：1.1 V
最大输出低电流：0.005 A封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP8,.19
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED电源：3.3/5 V
认证状态：Not Qualified最大接收延迟：325 ns
接收器位数：1座面最大高度：1.1 mm
子类别：Line Driver or Receivers最大压摆率：4.5 mA
最大供电电压：3.6 V最小供电电压：3 V
标称供电电压：3.3 V表面贴装：YES
技术：BICMOS温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn) - annealed端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED最大传输延迟：1000 ns
宽度：3 mmBase Number Matches：1

ISL32457EIBZ 数据手册

 浏览型号ISL32457EIBZ的Datasheet PDF文件第2页浏览型号ISL32457EIBZ的Datasheet PDF文件第3页浏览型号ISL32457EIBZ的Datasheet PDF文件第4页浏览型号ISL32457EIBZ的Datasheet PDF文件第5页浏览型号ISL32457EIBZ的Datasheet PDF文件第6页浏览型号ISL32457EIBZ的Datasheet PDF文件第7页 
±60V Fault Protected, 3.3V to 5V, ±20V Common Mode  
Range, RS-485/RS-422 Transceivers with Cable Invert  
and ±15kV ESD  
ISL32450E, ISL32452E, ISL32453E, ISL32455E, ISL32457E  
The ISL32450E through ISL32457E are 3.3V to 5V powered, fault  
protected, extended common mode range differential transceivers  
Features  
• Fault Protected RS-485 Bus Pins. . . . . . . . . . . . . . Up to ±60V  
for balanced communication. The RS-485 bus pins (driver outputs  
and receiver inputs) are protected against overvoltages up to  
±60V, and against ±15kV ESD strikes. These transceivers operate  
in environments with common mode voltages up to ±20V  
(exceeds the RS-485 requirement), making this RS-485 family  
one of the more robust on the market.  
• Extended Common Mode Range . . . . . . . . . . . . . . . . . . . ±20V  
Larger Than Required for RS-485  
• ±15kV HBM ESD Protection on RS-485 Bus Pins  
• Wide Supply Range . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 5.5V  
• Cable Invert Pin (ISL32457E Only)  
Corrects for Reversed Cable Connections While Maintaining Rx  
Full Fail-safe Functionality  
Transmitters are RS-485 compliant with V ≥ 4.5V and deliver a  
1.1V differential output voltage into the RS-485 specified 54Ω  
CC  
load even with V = 3V.  
CC  
• 1/4 Unit Load for Up to 128 Devices on the Bus  
Receiver (Rx) inputs feature a “Full Fail-Safe” design, which  
ensures a logic-high Rx output if Rx inputs are floating, shorted, or  
on a terminated but undriven (idle) bus. Rx full fail-safe operation  
is maintained even when the Rx input polarity is switched (cable  
invert function on ISL32457E).  
• High Transient Overvoltage Tolerance . . . . . . . . . . . . . . . ±80V  
• Full Fail-safe (Open, Short, Terminated) RS-485 Receivers  
• Choice of RS-485 Data Rates . . . . . . . . . . . . 250kbps or 1Mbps  
• Low Quiescent Supply Current . . . . . . . . . . . . . . . . . . . 2.1mA  
Ultra Low Shutdown Supply Current . . . . . . . . . . . . . . . 10µA  
The ISL32457E includes a cable invert function that reverses the  
polarity of the Rx and Tx bus pins in case the cable is  
misconnected during installation.  
• Pb-Free (RoHS Compliant)  
See Table 1 on page 2 for key features and configurations by  
device number.  
Applications  
• Utility Meters/Automated Meter Reading Systems  
Related Literature  
• See FN7784, “ISL32470E, ISL32472E, ISL32475E,  
ISL32478E: Fault Protected, Extended Common Mode Range,  
RS-485/RS-422 Transceivers with ±16.5kV ESD”  
• Air Conditioning Systems  
• Security Camera Networks  
• Building Lighting and Environmental Control Systems  
• Industrial/Process Control Networks  
20  
12  
V
= 3V  
CC  
A
B
20  
15  
10  
5
VID = ±1V  
2Mbps  
0
-7  
RO  
0
-20  
STANDARD RS-485  
TRANSCEIVER  
ISL3245XE  
TIME (200ns/DIV)  
FIGURE 2. TRANSCEIVERS DELIVER SUPERIOR COMMON MODE  
RANGE vs STANDARD RS-485 DEVICES  
FIGURE 1. EXCEPTIONAL ISL32453E RX OPERATES AT >1Mbps  
EVEN WITH ±20V COMMON MODE VOLTAGE  
February 20, 2012  
FN7921.0  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2012. All Rights Reserved  
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  
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