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ISO7742-Q1 ACTIVE Automotive, robust EMC, quad-channel, 2/2, reinforced digital isolator Pin-to-pin upgrade with higher isolation, stronger CMTI, wider supply range and better immunity

Product details

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 2 forward / 2 reverse Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 25 Rating Automotive Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 3 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
Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 2 forward / 2 reverse Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 25 Rating Automotive Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 3 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
SOIC (DW) 16 77 mm² 10.3 x 7.5
  • 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

  • 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

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.

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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Technical documentation

Design & development

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Evaluation board

DIGI-ISO-EVM — Universal digital isolator evaluation module

DIGI-ISO-EVM is an evaluation module (EVM) used to evaluate any of the TI single-channel, dual-channel, triple-channel, quad-channel or six-channel digital isolator devices in five different packages - 8-pin narrow-body SOIC (D), 8-pin wide-body SOIC (DWV), 16-pin wide-body SOIC (DW), 16-pin ultra- (...)

Evaluation board

ISO723X724XEVM — ISO723X724XEVM Evaluation Module

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 (...)

Simulation model

ISO7242 IBIS Model (Rev. D)

SLLC347D.ZIP (13 KB) - IBIS Model
Reference designs

TIPD201 — Isolated Current Shunt/Voltage Measurement Reference Design for Automotive Battery Pack Monitoring

This TI Verified Design provides the theory, component selection, TINA-TI simulations, Verification & Measurement Performance, Altium Schematics, PCB Layout for automotive Battery Pack monitoring application.  The design uses a automotive AEC-Q100 qualified 12-bit, 4-Channel, 1Msps SAR ADC, (...)
Package Pins Download
SOIC (DW) 16 View options

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