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ISO1050DUBR

TIISO1050DUBR

Texas Instruments
1/1 Transceiver, Isolated Half CANbus 8-SOP
NRND45,164 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The ISO1050DUBR is a galvanically isolated CAN transceiver designed to meet ISO11898-2 standards while providing 2500-VRMS isolation. It supports data rates up to 1Mbps and features a wide operating temperature range from -55C to 105C, making it suitable for harsh industrial and automotive environments. The device utilizes a logic-side supply of 3V to 5.5V and a bus-side supply of 4.75V to 5.25V to accommodate various microprocessor voltage levels.

Why Choose This Part

This transceiver offers high transient immunity of 50-kV/us and bus-fault protection ranging from -27V to 40V. It includes a TXD dominant time-out function to prevent network blocking and features fail-safe outputs that ensure a recessive bus state if the input power is lost.

Applications

Industrial Automation
Provides isolated communication for CANopen or DeviceNet networks in factory environments where ground loops and high-voltage transients are present.
Solar Inverters
Facilitates reliable data exchange between the high-voltage power stage and the low-voltage control unit.
Building Automation
Ensures signal integrity and equipment protection in distributed HVAC and security systems spanning long distances.
Battery Management Systems (BMS)
Communicates critical cell data across isolation barriers in high-voltage battery packs.

Key Specifications

Type Transceiver, Isolated
Duplex Half
Protocol CANbus
Data Rate 1Mbps
Mounting Type Surface Mount
Package / Case 8-SMD, Gull Wing
Voltage - Supply 3V ~ 5.5V, 4.75V ~ 5.25V
Receiver Hysteresis 150 mV
Operating Temperature -55degC ~ 105degC
Supplier Device Package 8-SOP
Number of Drivers/Receivers 1/1

Getting Started

To evaluate this part, use a 3.3V or 5V MCU connected to the TXD and RXD pins on Side 1, ensuring VCC1 and VCC2 are properly decoupled with 0.1uF capacitors. Ensure the CAN bus is terminated with 120-ohm resistors at both ends of the cable for impedance matching. Prototyping can be done using the ISO1050EVM evaluation module which provides a pre-assembled circuit for testing isolation and signal integrity.

ISO1050 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
ISO1050DUBR (this part) SMD-8 45,164
ISO1050DWR SOIC-16 9,559

Also Consider

ISO1050DWR TITexas Instruments - Offers the same 1Mbps isolated CAN functionality but in a standard 16-pin SOIC wide package for different PCB layout requirements.
ADM3053 Analog Devices - Includes an integrated isolated DC-to-DC converter (isoPower), eliminating the need for a separate isolated power supply for the bus side.

Categories

Interface ICs > CAN Bus Interface ICs > Digital Isolators