ISO1042BQDWVRQ1 - 5Mbps Isolated CAN FD Transceiver | TI
MPN: ISO1042BQDWVRQ1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.2 | $2.20 |
| 10 | $2.05 | $20.50 |
| 100 | $1.85 | $185.00 |
| 500 | $1.65 | $825.00 |
| 1,000 | $1.51 | $1,510.00 |
Drop-in alternatives for ISO1042BQDWVRQ1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ISO1042QDWVRQ1
β Drop-Inπ Reference alternative (not in catalog)
ISO1042
β Drop-Inβ In Stock
$2.25 / Unit
View Datasheet βISO1050QDUBRQ1
β‘ Same Packageβ In Stock
$3.85 / Unit
View Datasheet βISO1044DWVRQ1
β Drop-Inπ Reference alternative (not in catalog)
ADM3053BRWZ
β‘ Same Packageβ In Stock
$3.8 / Unit
View Datasheet βISO1042BQDWVRQ1 Maximum Ratings & Electrical Characteristics
| Function | Galvanically-isolated CAN transceiver |
| Standard Compliance | ISO11898-2 (2016) |
| Data Rate | 5 Mbps (CAN FD) |
| Bus Fault Protection | +/-70 V DC |
| Common-Mode Voltage Range | +/-30 V |
| Drivers / Receivers | 1 / 1 |
| Supply Voltage (Logic Side) | 1.8 V to 5.5 V |
| Operating Supply Current | 43 mA |
| Qualification | AEC-Q100 |
| Operating Temperature | -40 C to +125 C |
| Package | SOIC-8 (DWV), wide body |
| Mounting Style | SMD/SMT |
| Packaging | Cut Tape, Reel |
| Series | ISO1042-Q1 |
| Grade | Automotive |
| RoHS Status | [DATA_NEEDED: RoHS status] |
ISO1042BQDWVRQ1 Pin Configuration
| Pin 1 | VCC1 β Logic-side supply (1.8 V to 5.5 V) |
| Pin 2 | GND1 β Logic-side ground |
| Pin 3 | TXD β Transmit data input from CAN controller |
| Pin 4 | RXD β Receive data output to CAN controller |
| Pin 5 | GND2 β Bus-side ground |
| Pin 6 | CANL β CAN low bus line |
| Pin 7 | CANH β CAN high bus line |
| Pin 8 | VCC2 β Bus-side supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ISO1042BQDWVRQ1 is suitable for 6 applications: Automotive Body Control Modules, EV Battery Management Systems, Industrial Motor Drives and PLCs, On-Board Charger and Traction Inverter Networks, CAN Bus Gateways and Telematics, Test and Diagnostic Equipment.
Automotive Body Control Modules
The ISO1042BQDWVRQ1 isolates the body-control MCU from the vehicle CAN bus, protecting low-voltage logic from ground shifts and wiring faults. Its +/-70-V DC bus fault protection and +/-30-V common-mode range handle battery shorts and load-dump events on the bus. AEC-Q100 qualification and -40 C to +125 C operation cover under-hood and exterior zones. The 1.8-V logic-side supply interfaces directly with modern MCUs without level shifting, and 5-Mbps CAN FD support future-proofs gateway designs.
Recommended
EV Battery Management Systems
In battery management, cell-monitoring controllers sit at high, floating potentials while the vehicle CAN backbone is chassis-referenced. The ISO1042BQDWVRQ1's galvanic barrier bridges this gap, blocking hundreds of volts of common-mode offset. Its +/-70-V fault tolerance survives accidental bus-to-pack shorts during service. Combined with TI BQ76952Q-Q1 cell monitors, the 5-Mbps CAN FD data rate enables fast pack telemetry, and the wide 1.8-V to 5.5-V logic supply simplifies integration with low-voltage BMS MCUs.
Recommended
Industrial Motor Drives and PLCs
Industrial motor drives generate large ground potential differences and fast switching transients that corrupt non-isolated CAN communication. The ISO1042BQDWVRQ1's isolation barrier and +/-30-V common-mode range maintain signal integrity across these domains. At 5 Mbps CAN FD, deterministic control networks achieve faster cycle times than classic CAN. Its 43 mA supply current suits dense multi-node racks, and pairing with the AMC1306M25 isolated ADC builds a fully isolated drive-control interface meeting industrial noise immunity expectations.
Recommended
On-Board Charger and Traction Inverter Networks
Power conversion stages in EVs separate control grounds from power grounds for safety and EMI reasons. The ISO1042BQDWVRQ1 provides the isolated CAN link between the vehicle network and charger or inverter control boards. Its capacitive isolation technology withstands continuous common-mode stress from the switching power stage, while +/-70-V bus fault protection covers wiring harness faults. The DWV wide-body package supplies generous creepage for 400-V/800-V system designs, and operation to +125 C suits under-hood environments.
Recommended
CAN Bus Gateways and Telematics
Gateways translate between classic CAN segments and CAN FD backbones. The ISO1042BQDWVRQ1's 5-Mbps data rate matches modern FD backbones while its robust +/-70-V protection suits harsh vehicle or cabinet wiring. Galvanic isolation prevents ground loops when joining segments powered from different supplies. Designers pair it with the TCAN4550RGYRQ1 (CAN controller with integrated transceiver option) or an MCU CAN module; 100-nF decoupling on both supply sides plus a single 120-ohm split termination keeps eye margins healthy at 5 Mbps.
Recommended
Test and Diagnostic Equipment
CAN analyzers and diagnostic tools connect to unknown, possibly faulted networks, so input protection and isolation are essential. The ISO1042BQDWVRQ1's +/-70-V DC bus fault protection and +/-30-V common-mode range tolerate miswired or shorted buses that would destroy unprotected front ends. Isolation protects both the operator and the instrument PC ground. Its wide 1.8-V to 5.5-V logic-side supply adapts to different DUT supply domains, and 5-Mbps CAN FD capture keeps the tool relevant for next-generation networks.
Recommended
Recommended Products Summary
Engineering reference data for ISO1042BQDWVRQ1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ISO1042QDWVRQ1 | ISO1042 | ISO1050QDUBRQ1 |
|---|---|---|---|---|
| Package | SOIC-8 (DWV) wide body | SOIC-8 (DWV) - same | SOIC-8 (DWV) - same | SOIC-8 (DUB) - similar footprint, verify |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Max Data Rate | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 1 Mbps (classic CAN) |
| Bus Fault Protection | +/-70 V DC | +/-70 V DC | +/-70 V DC | [DATA_NEEDED] |
| Common-Mode Range | +/-30 V | +/-30 V | +/-30 V | [DATA_NEEDED] |
| Logic Supply Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | [DATA_NEEDED] |
| AEC-Q100 Qualified | Yes | Yes | No (commercial grade) | Yes |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | [DATA_NEEDED] | [DATA_NEEDED] |
| Price (1 pc, as of 2026-08-29) | ~$2.20 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- 5-Mbps CAN FD support (vs ISO1050QDUBRQ1)
- +/-70-V DC bus fault protection (vs ISO1044DWVRQ1)
- Commercial-grade lower-cost variant (vs ISO1042)
Design Notes
Place 100-nF X7R decoupling capacitors within 2 mm of VCC1 and VCC2 pins, each with a low-impedance via to the respective ground plane. Because the isolation barrier splits the board into two ground domains, do not route any signals across the barrier except the TXD/RXD digital lines; cross-under traces increase parasitic coupling and degrade isolation performance at 5-Mbps CAN FD edge rates.
Use a single 120-ohm termination (or split termination of 2x60 ohms with a capacitor to ground) at the bus ends per ISO11898-2 (2016). Keep stub lengths under 30 cm at 5 Mbps. The +/-30-V common-mode range tolerates most ground shifts, but sustained transients beyond this require common-mode chokes and TVS diodes (e.g., 24-V standoff devices) at CANH/CANL.
Do not rely on the transceiver alone for transient immunity: the +/-70-V DC fault rating does not replace ISO 7637-style load-dump TVS protection. Also ensure the logic-side supply is stable at 1.8 V minimum - brownouts during crank can cause TXD glitches; check the datasheet's default-state behavior on TXD failure for safe bus release.
Compliance Information
AEC-Q100 qualification confirmed by distributor data. RoHS/REACH status not stated in retrieved data - confirm on TI.com product page.
