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ADM3053 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADM3053
Beschreibung Signal and Power Isolated CAN Transceiver
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 20 Seiten
ADM3053 Datasheet, Funktion
www.DataSheet.co.kr
Signal and Power Isolated CAN Transceiver
with Integrated Isolated DC-to-DC Converter
ADM3053
FEATURES
GENERAL DESCRIPTION
2.5 kV rms signal and power isolated CAN transceiver
isoPower 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
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.
APPLICATIONS
CAN data buses
Industrial field networks
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
isoPower Devices, for details on board layout considerations.
FUNCTIONAL BLOCK DIAGRAM
VCC
VISOOUT
isoPower DC-TO-DC CONVERTER
OSCILLATOR
RECTIFIER
VIO
TxD
RxD
REGULATOR
DIGITAL ISOLATION iCoupler
ENCODE
DECODE
ADM3053
DECODE
ENCODE
TxD
RS
RxD
VREF
SLOPE/
STANDBY
VCC
PROTECTION
DRIVER
RECEIVER
REFERENCE
VOLTAGE
CAN TRANSCEIVER
GND2
GND1
LOGIC SIDE
ISOLATION
BARRIER
Figure 1.
GND2
BUS SIDE
VISOIN
RS
CANH
CANL
VREF
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. 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.
Datasheet pdf - http://www.DataSheet4U.net/






ADM3053 Datasheet, Funktion
www.DataSheet.co.kr
ADM3053
VDE 0884 INSULATION CHARACTERISTICS (PENDING)
This isolator is suitable for basic electrical isolation only within the safety limit data. Maintenance of the safety data must be ensured by
means of protective circuits.
Table 5.
Description
CLASSIFICATIONS
Installation Classification per DIN VDE 0110 for Rated
Mains Voltage
≤150 V rms
≤300 V rms
≤400 V rms
Climatic Classification
Pollution Degree
VOLTAGE
Maximum Working Insulation Voltage
Input-to-Output Test Voltage
Method b1
Highest Allowable Overvoltage
SAFETY-LIMITING VALUES
Case Temperature
Input Current
Output Current
Insulation Resistance at TS
Conditions
DIN VDE 0110, see Table 3
VIORM × 1.875 = VPR, 100% production tested,
tm = 1 sec, partial discharge < 5 pC
(Transient overvoltage, tTR = 10 sec)
Maximum value allowed in the event of a
failure
VIO = 500 V
Symbol Characteristic Unit
VIORM
VPR
VTR
I to IV
I to III
I to II
40/85/21
2
424
795
4000
TS
IS, INPUT
IS, OUTPUT
RS
150
265
335
>109
VPEAK
VPEAK
VPEAK
°C
mA
mA
Rev. 0 | Page 6 of 20
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6 Page









ADM3053 pdf, datenblatt
www.DataSheet.co.kr
ADM3053
TEST CIRCUITS
TxD
VOD VCANH
RL
2
RL
2
VOC
VCANH
Figure 22. Driver Voltage Measurement
CANH
VID
CANL
RxD
CL
Figure 23. Receiver Voltage Measurements
CANH
TxD
RL CL
CANL
RxD
15pF
Figure 24. Switching Characteristics Measurements
100nF 10µF
100nF 10µF
VCC
isoPower DC-TO-DC CONVERTER
VISOOUT
OSCILLATOR
RECTIFIER
VIO
100nF 10µF
TxD
DIGITAL ISOLATION iCoupler
ENCODE
RxD DECODE
ADM3053
REGULATOR
DECODE
ENCODE
TxD
RS
RxD
VREF
VCC
PROTECTION
SLOPE/
STANDBY
DRIVER
RECEIVER
REFERENCE
VOLTAGE
CAN TRANSCEIVER
GND2
GND1
LOGIC SIDE
ISOLATION
BARRIER
GND2
BUS SIDE
Figure 25. Supply Current Measurement Test Circuit
VISOIN
10µF 100nF
RS
RS
CANH
CANL
RL
VREF
Rev. 0 | Page 12 of 20
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12 Page





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