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ADM3053 Datasheet(PDF) 1 Page - Analog Devices |
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ADM3053 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page Signal and Power Isolated CAN Transceiver with Integrated Isolated DC-to-DC Converter ADM3053 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2011 Analog Devices, Inc. All rights reserved. FEATURES 2.5 kV rms signal and power isolated CAN transceiver iso Power integrated isolated dc-to-dc converter 5 V operation on VCC 5 V or 3.3 V operation on VIO Complies with ISO 11898 standard High speed data rates of up to 1 Mbps Unpowered nodes do not disturb the bus Connect 110 or more nodes on the bus Slope control for reduced EMI Thermal shutdown protection High common-mode transient immunity: >25 kV/µs Safety and regulatory approvals (pending) UL recognition 2500 V rms for 1 minute per UL 1577 VDE Certificate of Conformity DIN EN 60747-5-2 (VDE 0884 Rev.2): 2003-01 Industrial operating temperature range (−40°C to +85°C) Available in wide-body, 20-lead SOIC package APPLICATIONS CAN data buses Industrial field networks GENERAL DESCRIPTION The ADM3053 is an isolated controller area network (CAN) physical layer transceiver with an integrated isolated dc-to-dc converter. The ADM3053 complies with the ISO 11898 standard. The device employs Analog Devices, Inc., iCoupler® technology to combine a 2-channel isolator, a CAN transceiver, and Analog Devices isoPower® dc-to-dc converter into a single SOIC surface mount package. An on-chip oscillator outputs a pair of square waveforms that drive an internal transformer to provide isolated power. The device is powered by a single 5 V supply realizing a fully isolated CAN solution. The ADM3053 creates a fully isolated interface between the CAN protocol controller and the physical layer bus. It is capable of running at data rates of up to 1 Mbps. The device has current limiting and thermal shutdown features to protect against output short circuits. The part is fully specified over the industrial temperature range and is available in a 20-lead, wide-body SOIC package. The ADM3053 contains isoPower technology that uses high frequency switching elements to transfer power through the transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. Refer to the AN-0971 Application Note, Control of Radiated Emissions with iso Power Devices, for details on board layout considerations. FUNCTIONAL BLOCK DIAGRAM ADM3053 TxD VCC RxD ISOLATION BARRIER GND1 GND2 LOGIC SIDE BUS SIDE ENCODE DECODE DECODE ENCODE OSCILLATOR RECTIFIER REGULATOR VISOOUT DIGITAL ISOLATION iCoupler isoPower DC-TO-DC CONVERTER VIO VISOIN RS CANH CANL VREF REFERENCE VOLTAGE RECEIVER CAN TRANSCEIVER TxD RS RxD VREF GND2 VCC SLOPE/ STANDBY DRIVER PROTECTION Figure 1. |
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