ISO7331-Q1

Name: ISO7331-Q1
Brand: TI
SKU: ISO7331-Q1
Price: 5.753 USD

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Automotive, low-power, triple-channel, 2/1, 25-Mbps digital isolator

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Data sheet

document-pdfAcrobat ISO733x-Q1 Robust EMC, Low Power, Triple-Channel Digital Isolators datasheet PDF | HTML

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ISO6731-Q1

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Automotive, general-purpose, triple-channel, 2/1, digital isolator Supports 50-Mbps data rate

ISO7331-Q1

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Data sheet

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Product details

Rating

Automotive

Integrated isolated power

No

Number of channels

3

Forward/reverse channels

2 forward / 1 reverse

Data rate (max) (Mbps)

25

Protocols

GPIO, PWM, SPI

Propagation delay time (typ) (ns)

31

Isolation rating

Basic

Withstand isolation voltage (VISO) (Vrms)

3000

Surge isolation voltage (VIOSM) (kVPK)

7.8

CMTI (min) (kV/µs)

25

Default output

High, Low

Creepage (min) (mm)

8

Current consumption per channel (DC) (typ) (mA)

1

Current consumption per channel (1 Mbps) (typ) (mA)

1

Supply voltage (min) (V)

3.3

Supply voltage (max) (V)

5

Operating temperature range (°C)

-40 to 125

Transient isolation voltage (VIOTM) (VPK)

4242

Clearance (min) (mm)

8

Rating

Automotive

Integrated isolated power

No

Number of channels

3

Forward/reverse channels

2 forward / 1 reverse

Data rate (max) (Mbps)

25

Protocols

GPIO, PWM, SPI

Propagation delay time (typ) (ns)

31

Isolation rating

Basic

Withstand isolation voltage (VISO) (Vrms)

3000

Surge isolation voltage (VIOSM) (kVPK)

7.8

CMTI (min) (kV/µs)

25

Default output

High, Low

Creepage (min) (mm)

8

Current consumption per channel (DC) (typ) (mA)

1

Current consumption per channel (1 Mbps) (typ) (mA)

1

Supply voltage (min) (V)

3.3

Supply voltage (max) (V)

5

Operating temperature range (°C)

-40 to 125

Transient isolation voltage (VIOTM) (VPK)

4242

Clearance (min) (mm)

8

SOIC (DW)

16

106.09 mm² 10.3 x 10.3

Signaling Rate: 25 Mbps
Integrated Noise Filter on the Inputs
Default Output and Options
Low Power Consumption: Typical I_CC per Channel at 1 Mbps:
- ISO7330: 1 mA (5-V Supplies),
  0.8 mA (3.3-V Supplies)
- ISO7331: 1.4 mA (5-V Supplies),
  1 mA (3.3-V Supplies)
Low Propagation Delay: 32 ns
Typical (5-V Supplies)
Operates from 3.3 V and 5-V Supplies
3.3-V and 5-V Level Translation
70-kV/μs Transient Immunity,
Typical (5-V Supplies)
Robust Electromagnetic Compatibility (EMC)
- System-level ESD, EFT, and Surge Immunity
- Low Emissions
Wide Body SOIC-16 Package
Isolation Barrier Life: > 25 Years
Safety and Regulatory Approvals:
- 4242-V_PK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
- 3000-V_RMS Isolation for 1 minute per UL 1577
- CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 End Equipment Standards
- CQC Certification per GB4943.1-2011

All trademarks are the property of their respective owners.

Signaling Rate: 25 Mbps
Integrated Noise Filter on the Inputs
Default Output and Options
Low Power Consumption: Typical I_CC per Channel at 1 Mbps:
- ISO7330: 1 mA (5-V Supplies),
  0.8 mA (3.3-V Supplies)
- ISO7331: 1.4 mA (5-V Supplies),
  1 mA (3.3-V Supplies)
Low Propagation Delay: 32 ns
Typical (5-V Supplies)
Operates from 3.3 V and 5-V Supplies
3.3-V and 5-V Level Translation
70-kV/μs Transient Immunity,
Typical (5-V Supplies)
Robust Electromagnetic Compatibility (EMC)
- System-level ESD, EFT, and Surge Immunity
- Low Emissions
Wide Body SOIC-16 Package
Isolation Barrier Life: > 25 Years
Safety and Regulatory Approvals:
- 4242-V_PK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
- 3000-V_RMS Isolation for 1 minute per UL 1577
- CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 End Equipment Standards
- CQC Certification per GB4943.1-2011

All trademarks are the property of their respective owners.

The ISO733x family of devices provides galvanic isolation up to 3000 V_RMS for 1 minute per UL 1577 and 4242 V_PKper VDE V 0884-10. These devices have three isolated channels comprised of logic input and output buffers separated by a silicon dioxide (SiO₂) insulation barrier.

The ISO7330 has all three channels in the same direction while ISO7331 has two channels in forward and one channel in reverse direction. See the section for further details.

Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The ISO733x family of devices has integrated noise filter for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO733x family of devices has TTL input thresholds and operates from 3-V to 5.5-V supply levels. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO733x family of devices has been significantly enhanced to enable system-level ESD, EFT, Surge and Emissions compliance.

For all available packages, see the orderable addendum at the end of the datasheet.

The ISO733x family of devices provides galvanic isolation up to 3000 V_RMS for 1 minute per UL 1577 and 4242 V_PKper VDE V 0884-10. These devices have three isolated channels comprised of logic input and output buffers separated by a silicon dioxide (SiO₂) insulation barrier.

The ISO7330 has all three channels in the same direction while ISO7331 has two channels in forward and one channel in reverse direction. See the section for further details.

Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The ISO733x family of devices has integrated noise filter for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO733x family of devices has TTL input thresholds and operates from 3-V to 5.5-V supply levels. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO733x family of devices has been significantly enhanced to enable system-level ESD, EFT, Surge and Emissions compliance.

For all available packages, see the orderable addendum at the end of the datasheet.

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Technical documentation

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Top documentation	Type	Title	Format options	Date
*	Data sheet	ISO733x-Q1 Robust EMC, Low Power, Triple-Channel Digital Isolators datasheet	PDF \| HTML	16 Nov 2015
	Certificate	VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. Z)		29 May 2026
	Certificate	UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S)		07 May 2026
	White paper	Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D)	PDF \| HTML	07 Nov 2025
	Certificate	CQC Certificate for ISOxxDWx (Rev. K)		18 Aug 2025
	Certificate	CSA Certificate for ISO73xxDW		22 Feb 2023
	White paper	Why are Digital Isolators Certified to Meet Electrical Equipment Standards?		16 Nov 2021
	White paper	Distance Through Insulation: How Digital Isolators Meet Certification Requiremen	PDF \| HTML	11 Jun 2021
	Application brief	How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A)	PDF \| HTML	19 May 2021

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