1st  July 2010

Isolated CAN Transceiver

The new  IsoLoop® IL41050T isolated Controller Area Network (CAN) transceiver integrates the transceiver and isolation functions in a single device with improved performance and reduced chip count compared to discrete transceivers and traditional optocouplers. The IL41050T fully complies with the ISO 11898 CAN standard and de facto industry standards, and provides an isolated interface to three volt or five volt microcontrollers.

 Patented spintronic giant magnetoresistance technology provides best-in-class loop delay of 180 nanoseconds. This high speed maximizes data rate over any given bus length.

Advanced features facilitate reliable bus operation. Unpowered nodes do not disturb the bus, and a unique non-volatile programmable power-up feature prevents unstable nodes. The devices also have a hardware-selectable silent mode that disables the transmitter.

 Designed for harsh CAN and DeviceNet environments, IL41050T transceivers have a -55 to +125 degree Celsius operating range, transmit data dominant time-out, bus pin transient protection, thermal shutdown protection, short-circuit protection, 2,500 volt isolation, and typical transient immunity of 30 kilovolts per microsecond. Unique edge-triggered inputs improve noise performance. The parts are UL 1577 and IEC 61010-2001 approved. Unlike optocouplers or other isolation technologies, IsoLoop isolators have indefinite life at high voltage.

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