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参数

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 3/1 Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 25 Rating Automotive VCC (Max) (V) 5 Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 3 Operating temperature range (C) -40 to 125 VCC (Min) (V) 2.8 Default output High Propagation delay (Typ) (ns) 35 open-in-new 查找其它 数字隔离器

封装|引脚|尺寸

SOIC (DW) 16 77 mm² 10.3 x 7.5 open-in-new 查找其它 数字隔离器

特性

  • Qualified for Automotive Applications
  • Selectable Failsafe Output (ISO7240CF)
  • 25 and 150-Mbps Signaling Rate Options
    • Low Channel-to-Channel Output Skew;
      1 ns Max
    • Low Pulse-Width Distortion (PWD);
      2 ns Max
    • Low Jitter Content; 1 ns Typ at 150 Mbps
  • Typical 25-Year Life at Rated Working Voltage
    (see application note SLLA197 and )
  • 4000-Vpeak Isolation,
    560-Vpeak VIORM
    • UL 1577 , IEC 60747-5-2 (VDE 0884, Rev 2),
      IEC 61010-1, IEC 60950-1 and CSA Approved
  • 4 kV ESD Protection
  • Operate With 3.3-V or 5-V Supplies
  • High Electromagnetic Immunity
    (see application report SLLA181)
  • –40°C to 125°C Operating Range

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描述

The ISO7240, ISO7241 and ISO7242 are quad-channel digital isolators 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 from entering the local ground and interfering with or damaging sensitive circuitry.

The ISO7240 has all four channels in the same direction while the ISO7241 has three channels the same direction and one channel in opposition. The ISO7242 has two channels in each direction.

The C option devices have TTL input thresholds and a noise-filter at the input that prevents transient pulses from being passed to the output of the device. The M option devices have CMOS VCC/2 input thresholds and do not have the input noise-filter or the additional propagation delay.

The ISO7240CF has an input disable function on pin 7, and a selectable high or low failsafe-output function with the CTRL pin (pin 10). The failsafe-output is a logic high when a logic-high is placed on the CTRL pin or it is left unconnected. If a logic-low signal is applied to the CTRL pin, the failsafe-output becomes a logic-low output state. The ISO7240CF input disable function prevents data from being passed across the isolation barrier to the output. When the inputs are disabled, the outputs are set by the CTRL pin.

These devices may be powered from either 3.3-V or 5-V supplies on either side in any 3.3-V / 3.3-V, 5-V / 5-V, 5-V / 3.3-V, or 3.3-V / 5-V combination. Note that the signal input pins are 5-V tolerant regardless of the voltage supply level being used.

These devices are characterized for operation over the ambient temperature range of –40°C to 125°C.

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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 ISO7241C-Q1, ISO7240CF-Q1 High-Speed Quad Digital Isolators 数据表 2011年 9月 23日
技术文章 What the DIN VDE V 0884-11:2017-01 standard means for your isolated designs 2020年 2月 27日
技术文章 Isolation 101: How to find the right isolation solution for your application 2020年 2月 11日
技术文章 Why signal isolation matters in 48-V HEV/EV systems 2019年 11月 20日
技术文章 Solving lifetime and temperature challenges in AC motor drives with capacitive-based isolation 2019年 11月 1日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

设计工具和仿真

仿真模型 下载
SLLC340C.ZIP (13 KB) - IBIS Model

CAD/CAE 符号

封装 引脚 下载
SOIC (DW) 16 视图选项

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