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ISO1042-Q1

Isolated CAN FD transceiver

Provides galvanic isolation between host and CAN bus with CAN FD up to5Mbps. Signal isolation does not include isolated power; verify basic/reinforced isolation and package options by OPN and safety documentation.

AutomotiveActiveExample package: SOIC (DW) · 16 pinVerified 2026-11-06

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5-second verdict

AutomotiveAEC-Q100 Grade 1

Temperature−40°C to +125°C (TA)

Functional safetyFunctional Safety-Capable

LifecycleActive

In one sentence: Qualification is grounded in this TI product's documentation; no grade is inferred from temperature. An ordering table may show junction or variant-specific limits, which must be distinguished from ambient conditions. TI explicitly lists Functional Safety-Capable. This is a device-documentation category, not system ASIL certification; assess the exact function, assumptions and safety manual.

Key specifications

CAN FDUp to 5 Mbps

VCC11.71–5.5 V

VCC24.5–5.5 V

Bus-fault protection±70 V DC

Common-mode range±30 V

Isolation withstand test5000 VRMS for 1 minute; verify OPN

Orderable variants (OPNs)

The GPN is for selection; the full OPN is for ordering. These examples were observed on the verification date, not live stock. Variants may differ in package, temperature, gain/threshold and, for PMICs, NVM/sequencing. Distinguish TA from TJ in the exact datasheet.

OPN	Package	Temperature	Note
ISO1042BQDWQ1	SOIC (DW) · 16 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.
ISO1042BQDWRQ1	SOIC (DW) · 16 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.
ISO1042BQDWVQ1	SOIC (DWV) · 8 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.
ISO1042BQDWVRQ1	SOIC (DWV) · 8 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.
ISO1042QDWQ1	SOIC (DW) · 16 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.
ISO1042QDWRQ1	SOIC (DW) · 16 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.
ISO1042QDWVQ1	SOIC (DWV) · 8 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.
ISO1042QDWVRQ1	SOIC (DWV) · 8 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.

ISO1042BQDWQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

SOIC (DW) · 16 pinVerify exact OPN, temperature definition and revision; not a stock claim.

ISO1042BQDWRQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

SOIC (DW) · 16 pinVerify exact OPN, temperature definition and revision; not a stock claim.

ISO1042BQDWVQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

SOIC (DWV) · 8 pinVerify exact OPN, temperature definition and revision; not a stock claim.

ISO1042BQDWVRQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

SOIC (DWV) · 8 pinVerify exact OPN, temperature definition and revision; not a stock claim.

ISO1042QDWQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

SOIC (DW) · 16 pinVerify exact OPN, temperature definition and revision; not a stock claim.

ISO1042QDWRQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

SOIC (DW) · 16 pinVerify exact OPN, temperature definition and revision; not a stock claim.

ISO1042QDWVQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

SOIC (DWV) · 8 pinVerify exact OPN, temperature definition and revision; not a stock claim.

ISO1042QDWVRQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

SOIC (DWV) · 8 pinVerify exact OPN, temperature definition and revision; not a stock claim.

Official ordering page: https://www.ti.com/product/ISO1042-Q1

Typical applications

CAN isolation between voltage domainsBattery/charging communication boundaries

FAQ

Does it include isolated power?

No. Bus and logic sides need supplies meeting their isolation requirements; an isolated transceiver does not eliminate the power barrier.

Are all ISO1042-Q1 OPNs reinforced isolation?

That cannot be generalized. TI offers basic and reinforced options; verify the exact suffix, package and corresponding certification.

How should I verify the ISO1042-Q1 orderable?

The page lists 8 OPN examples from official material checked on 2026-11-06. Match package, function options and temperature definitions; obtain live price/stock from TI or authorized distributors.

Sources and verification

Related selection and design checks

All selection guides →What does TI Q1 mean →AEC-Q100 grades →Model Y TI BOM →

NuAxi is an independent semiconductor market-intelligence platform and is not affiliated with Texas Instruments. Information is for selection reference only and is not a design, certification or procurement guarantee; verify against TI's official datasheet, ordering page and terms.