ISO7240C

ACTIVE

Quad-channel, 4/0, 25-Mbps digital isolator

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Product details

Parameters

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 4/0 Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 25 Rating Catalog Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 2.5 Operating temperature range (C) -40 to 125 Default output High Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 3.3 Propagation delay (Typ) (ns) 35 open-in-new Find other Digital isolators

Package | Pins | Size

SOIC (DW) 16 77 mm² 7.52 x 10.28 open-in-new Find other Digital isolators

Features

  • 25 and 150-Mbps Signaling Rate Options
    • Low Channel-to-Channel Output Skew;
      1 ns Maximum
    • Low Pulse-Width Distortion (PWD);
      2 ns Maximum
    • Low Jitter Content; 1 ns Typ at 150 Mbps
  • Selectable Default Output (ISO7240CF)
  • > 25-Year Life at Rated Working Voltage
    (see High-Voltage Lifetime of the ISO72x Family of Digital Isolators and Isolation Capacitor Lifetime Projection)
  • 4-kV ESD Protection
  • Operates With 3.3-V or 5-V Supplies
  • High Electromagnetic Immunity
    (see ISO72x Digital Isolator Magnetic-Field Immunity)
  • –40°C to +125°C Operating Temperature Range
  • Safety-Related Certifications:
    • VDE 4000 VPK Basic Insulation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    • 2.5 kVRMS Insulation for 1 minute per UL 1577
    • CSA Component Acceptance Notice #5A and IEC 60950-1 End Equipment Standard

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Description

The ISO7240x, ISO7241x, and ISO7242x devices are quad-channel digital isolators with multiple channel configurations and output-enable functions. These devices have logic-input and logic-output buffers separated by Texas Instrument’s silicon-dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices help block high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

The ISO7240x family of devices has all four channels in the same direction. The ISO7241x family of devices has three channels in the same direction and one channel in the opposition direction. The ISO7242x family of devices has two channels in each direction.

The devices with the C suffix (C option) 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 devices with the M suffix (M option) have CMOS VCC/2 input thresholds and do not have the input noise filter or the additional propagation delay.

The ISO7240CF device 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 input disable function of the ISO7240CF device prevents data from being passed across the isolation barrier to the output. When the inputs are disabled or VCC1 is powered down, the outputs are set by the CTRL pin.

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

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

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Technical documentation

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Type Title Date
* Data sheet ISO724x High-Speed, Quad-Channel Digital Isolators datasheet (Rev. T) Apr. 19, 2017
Technical articles What the DIN VDE V 0884-11:2017-01 standard means for your isolated designs Feb. 27, 2020
Technical articles Isolation 101: How to find the right isolation solution for your application Feb. 11, 2020
Technical articles Why signal isolation matters in 48-V HEV/EV systems Nov. 20, 2019
More literature CSA Certification (Rev. P) Nov. 19, 2019
Technical articles Optocouplers and silicon-based galvanic isolation technology – how do they work? Oct. 28, 2019
More literature VDE certificate for basic isolation for DIN VDE V 0884-11:2017-01 (Rev. Q) Sep. 20, 2019
More literature UL Certification (Rev. N) Jul. 30, 2019
Application notes Digital Isolator Design Guide (Rev. B) Aug. 01, 2018
Application notes Considerations for Selecting Digital Isolators Jul. 24, 2018
User guides Triple- and Quad-Channel Digital Isolator EVM (Rev. A) Sep. 27, 2011
Application notes 3Q 2011 Issue Analog Applications Journal Sep. 16, 2011
Application notes Журнал по применению аналоговых компонентов 3Q 2011 Sep. 01, 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The ISO723X724X evaluation module (EVM) supports the rapid, parametric evaluation of the Triple and Quad Digital Isolators. The EVM will be delivered with an ISO7241C soldered on the board. If another device is desired, please order samples from www.ti.com. If you do not have the capability to (...)

Features
  • Low Channel-to-Channel Output Skew; 1ns Maximum
  • Low Pulse-Width Distortion (PWD); 2 ns Maximum
  • Low Jitter Content; 1 ns Typ at 150 Mbps
  • Typical 25-Year Life at Rated Working Voltage (see Application note SLLA197 and Figure 10)
  • 4000-V peak Isolation; 560-V peak V IROM
    • UL 1577, IEC 60747-5-2 (VDE 0884, Rev (...)
DEVELOPMENT KITS Download
document-generic User guide
Description

To get started developing:
Step 1: Buy the C2000 MCU F28379D LaunchPad
Step 2: Read the quick start guide

LAUNCHXL-F28379D is a low cost evaluation and development tool for the F2837xD,  F2837xS, and F2807x series in the TI MCU LaunchPad ecosystem which is compatible with various plug-on BoosterPacks (...)

Features

Hardware features

  • USB connected isolated XDS100v2 JTAG debug probe for real-time debug and flash programming
  • 4x 20-pin headers/connectors
  • Programmable buttons and LEDs
  • TMS320F28379D: 200 MHz dual C28xCPUs and dual CLAs, 1 MB Flash, 16-bit/12-bit ADCs, comparators, 12-bit DACs, delta-sigma sinc filters (...)

Design tools & simulation

SIMULATION MODELS Download
SLLC335C.ZIP (13 KB) - IBIS Model

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CAD/CAE symbols

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SOIC (DW) 16 View options

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