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ISO6431

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Robust EMC, reinforced/Basic 3-channel, 2/1, digital isolator with 250kV/us CMTI, 150Mbps

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Data sheet

ISO6431

ACTIVE
Data sheet Order now

Product details

Rating Catalog Integrated isolated power No Number of channels 3 Forward/reverse channels 2 forward / 1 reverse Features Overvoltage tolerant inputs Data rate (max) (Mbps) 150 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 25 Propagation delay time (typ) (ns) 6.2 Propagation delay time (max) (ns) 10 Part-to-part output skew (max) (ns) 3 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 1.8 Channel-to-channel output skew (max) (ns) 1.5 Certifications CQC, TUV, UL, VDE Isolation rating Basic, Reinforced Working isolation voltage (VIOWM) (Vrms) 1061 Withstand isolation voltage (VISO) (Vrms) 3000, 5000 Surge isolation voltage (VIOSM) (kVPK) 4, 5.2, 10.4 CMTI (min) (kV/µs) 200 Default output High, Low Creepage (min) (mm) 4, 8 Current consumption per channel (DC) (typ) (mA) 1.4 Current consumption per channel (1 Mbps) (typ) (mA) 2.3 Operating temperature range (°C) to Transient isolation voltage (VIOTM) (VPK) 4243, 4500, 7071 Clearance (min) (mm) 4, 8
Rating Catalog Integrated isolated power No Number of channels 3 Forward/reverse channels 2 forward / 1 reverse Features Overvoltage tolerant inputs Data rate (max) (Mbps) 150 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 25 Propagation delay time (typ) (ns) 6.2 Propagation delay time (max) (ns) 10 Part-to-part output skew (max) (ns) 3 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 1.8 Channel-to-channel output skew (max) (ns) 1.5 Certifications CQC, TUV, UL, VDE Isolation rating Basic, Reinforced Working isolation voltage (VIOWM) (Vrms) 1061 Withstand isolation voltage (VISO) (Vrms) 3000, 5000 Surge isolation voltage (VIOSM) (kVPK) 4, 5.2, 10.4 CMTI (min) (kV/µs) 200 Default output High, Low Creepage (min) (mm) 4, 8 Current consumption per channel (DC) (typ) (mA) 1.4 Current consumption per channel (1 Mbps) (typ) (mA) 2.3 Operating temperature range (°C) to Transient isolation voltage (VIOTM) (VPK) 4243, 4500, 7071 Clearance (min) (mm) 4, 8
SSOP (DBQ) 16 29.4 mm² (4.9 mm × 6 mm)
  • Functional Safety-Capable:
    • Documentation available to aid IEC 61508 system design
  • Up to 150Mbps data rate
  • Robust SiO2 isolation barrier:
    • High lifetime at up to 1061VRMS and 1500VDC working voltage
    • Up to 5000VRMS isolation rating
    • Up to 10.4kV surge capability
    • Up to ±200kV/µs minimum CMTI
    • Wide temperature range: –40°C to 125°C ambient operating
  • Supply range: 2.25V to 5.5V
  • Overvoltage Tolerant Inputs
  • Default output high (ISO643x) and low (ISO643xF) options
  • Low propagation delay: 10ns maximum at 5V, 12ns maximum at 3.3V
  • Supports SPI up to: 25MHz at 5V, 20.8MHz at 3.3V
  • Low pulse width distortion: 1.8ns maximum at 5V, 2.2ns maximum at 3.3V
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • Low emissions
  • Small Footprint Packages:
    • Wide-SSOP (DFP-16) Package
    • SSOP (DBQ-16) Package
  • Safety-Related Certifications (Planned):
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 and CSA CAS Notice No. 5A
    • IEC 62368-1, IEC 61010-1 and GB 4943.1 certifications
  • Functional Safety-Capable:
    • Documentation available to aid IEC 61508 system design
  • Up to 150Mbps data rate
  • Robust SiO2 isolation barrier:
    • High lifetime at up to 1061VRMS and 1500VDC working voltage
    • Up to 5000VRMS isolation rating
    • Up to 10.4kV surge capability
    • Up to ±200kV/µs minimum CMTI
    • Wide temperature range: –40°C to 125°C ambient operating
  • Supply range: 2.25V to 5.5V
  • Overvoltage Tolerant Inputs
  • Default output high (ISO643x) and low (ISO643xF) options
  • Low propagation delay: 10ns maximum at 5V, 12ns maximum at 3.3V
  • Supports SPI up to: 25MHz at 5V, 20.8MHz at 3.3V
  • Low pulse width distortion: 1.8ns maximum at 5V, 2.2ns maximum at 3.3V
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • Low emissions
  • Small Footprint Packages:
    • Wide-SSOP (DFP-16) Package
    • SSOP (DBQ-16) Package
  • Safety-Related Certifications (Planned):
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 and CSA CAS Notice No. 5A
    • IEC 62368-1, IEC 61010-1 and GB 4943.1 certifications
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NEW ISO6041 ACTIVE Low power & propagation delay, reinforced 4-channel, 3/1 digital isolator with 0.4mA/ch Icc, 200Mbps Pin-to-pin performance upgrade; <5ps jitter, <1.2ns pulse width distortion, 200 Mbps max data rate, <1mA/ch Icc @ 15Mbps, and supports >25Mhz SPI for precision applications

Technical documentation

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Top documentation Type Title Format options Date
* Data sheet ISO643x General-Purpose, Basic and Reinforced , Triple -Channel Digital Isolators datasheet PDF | HTML Jun 1, 2026
Application note Small Form Factor Digital Isolator Packages Reduce PCB Size While Maintaining Creepage and Clearance Distances PDF | HTML Jul 1, 2026
Functional safety information ISO6431 and ISO6431-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML May 12, 2026

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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- (...)

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