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5 kV rms Signal Isolated High Speed CAN

Transceiver with Bus Protection

Data Sheet

ADM3054

Rev. D Document Feedback

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FEATURES

5 kV rms signal isolated CAN transceiver

5 V or 3.3 V operation on V

DD1

5 V operation on V

DD2

DD2SENSE

to detect loss of power on V

DD2

Complies with ISO 11898 standard

High speed data rates of up to 1 Mbps

Short-circuit protection on CANH and CANL against shorts to

power/ground in 24 V systems

Unpowered nodes do not disturb the bus

Connect 110 or more nodes on the bus

Thermal shutdown protection

High common-mode transient immunity: >25 kV/μs

Safety and regulatory approvals

UL recognition

5000 V rms for 1 minute per UL 1577

VDE Certificates of Conformity

DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12

IORM

= 846 V peak

Industrial operating temperature range: −40°C to +125°C

Wide-body, 16-lead SOIC package

Qualified for automotive applications

APPLICATIONS

CAN data buses

Industrial field networks

GENERAL DESCRIPTION

The ADM3054 is a 5 kV rms signal isolated controller area

network (CAN) physical layer transceiver. The ADM3054

complies with the ISO 11898 standard.

The device employs Analog Devices, Inc., iCoupler® technology

to combine a 3-channel isolator and a CAN transceiver into a

single package. The logic side of the device is powered with a

single 3.3 V or 5 V supply on V

DD1

and the bus side uses a single

5 V supply on V

DD2

only. Loss of power on the bus side (V

DD2

)

can be detected by an integrated V

DD2SENSE

signal.

The ADM3054 creates an 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 integrated protection on the bus pins, CANH

and CANL against shorts to power/ground in 24 V systems.

The device has current-limiting and thermal shutdown features

to protect against output short circuits and situations where the

bus might be shorted to ground or power terminals. The part is

fully specified over the industrial temperature range and is

available in a 16-lead, wide-body SOIC package.

FUNCTIONAL BLOCK DIAGRAM

Figure 1

TxD

RxD

ISOLATION

BARRIER

GND

DECODE

DD2SENSE

ENCODE

REF

DD1

ADM3054

VOLTAGE

REFERENCE

CAN TRANSCEIVER

LOGIC SIDE BUS SIDE

DD2

CANL

CANH

DIGITAL ISOLATION

iCoupler

DD2

VOLTAGE

SENSE

THERMAL

SHUTDOWN

GND

10274-001

Downloaded from Arrow.com.

Summary of content (20 pages)

PAGE 1
5 kV rms Signal Isolated High Speed CAN Transceiver with Bus Protection ADM3054 Data Sheet FEATURES GENERAL DESCRIPTION 5 kV rms signal isolated CAN transceiver 5 V or 3.
PAGE 2
ADM3054 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Test Circuits and Switching Characteristics................................ 13 Applications ....................................................................................... 1 Theory of Operation ...................................................................... 15 General Description ...................................................................
PAGE 3
Data Sheet ADM3054 SPECIFICATIONS Each voltage is relative to its respective ground, 3.0 V ≤ VDD1 ≤ 5.5 V, TA = −40°C to +125°C, 4.75 V ≤ VDD2 ≤ 5.25 V, unless otherwise noted. Table 1.
PAGE 4
ADM3054 Data Sheet TIMING SPECIFICATIONS Each voltage is relative to its respective ground, 3.0 V ≤ VDD1 ≤ 5.5 V. TA = −40°C to +125°C, 4.75 V ≤ VDD2 ≤ 5.25 V, unless otherwise noted. Table 2.
PAGE 5
Data Sheet ADM3054 REGULATORY INFORMATION Table 3. ADM3054 Approvals Organization UL VDE Approval Type Recognized under the component recognition program of Underwriters Laboratories, Inc.
PAGE 6
ADM3054 Data Sheet VDE 0884 INSULATION CHARACTERISTICS This isolator is suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data must be ensured by means of protective circuits. Table 5.
PAGE 7
Data Sheet ADM3054 ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted. Each voltage is relative to its respective ground. Table 6. Parameter VDD1, VDD2 Digital Input Voltage TxD Digital Output Voltage RxD VDD2SENSE CANH, CANL VREF Operating Temperature Range Storage Temperature Range ESD (Human Body Model) Lead Temperature Soldering (10 sec) Vapor Phase (60 sec) Infrared (15 sec) θJA Thermal Impedance TJ Junction Temperature Rating −0.5 V to +6 V −0.5 V to VDD1 + 0.5 V −0.5 V to VDD1 + 0.5 V −0.
PAGE 8
ADM3054 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 16 GND2 NC 1 15 NC GND1 2 GND1 3 ADM3054 14 NC 13 VDD2 TOP VIEW RxD 5 (Not to Scale) 12 CANH 4 TxD 6 11 CANL VDD1 7 10 VREF GND1 8 9 GND2 NOTES 1. NC = NO CONNECT. 10274-009 VDD2SENSE Figure 2. Pin Configuration Table 7. Pin Function Descriptions Pin No. 1 2 3 4 Mnemonic NC GND1 GND1 VDD2SENSE 5 6 7 RxD TxD VDD1 8 9 10 11 12 13 14 15 16 GND1 GND2 VREF CANL CANH VDD2 NC NC GND2 Description No Connect.
PAGE 9
Data Sheet ADM3054 TYPICAL PERFORMANCE CHARACTERISTICS 205 160 155 150 145 25 0 –25 50 75 100 125 TEMPERATURE (°C) RECEIVER INPUT VOLTAGE HYSTERESIS, VHYS (V) PROPAGATION DELAY TxD ON TO RECEIVER ACTIVE, tONRxD (ns) 153 152 151 150 149 148 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25 SUPPLY VOLTAGE, VDD2 (V) 10274-011 147 4.85 PROPAGATION DELAY TxD OFF TO BUS INACTIVE, tOFFTxD (ns) 220 210 200 190 180 0 25 50 75 100 125 TEMPERATURE (°C) 5.05 5.10 5.15 5.20 5.
PAGE 10
ADM3054 Data Sheet 78 42 41 SUPPLY CURRENT, IDD2 (mA) 77 76 75 74 73 72 40 39 38 37 36 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25 SUPPLY VOLTAGE, VDD2 (V) 34 100 1000 DATA RATE (kbps) 10274-019 71 4.75 VDD1 = 3.3V, VDD2 = 5V VDD1 = 5V, VDD2 = 5V 35 10274-016 PROPAGATION DELAY TxD OFF TO BUS INACTIVE, tOFFTxD (ns) VDD1 = 3.3V, TA = 25°C VDD1 = 5V, TA = 25°C Figure 12. Supply Current (IDD2) vs. Data Rate Figure 9. Propagation Delay from TxD Off to Bus Inactive vs.
PAGE 11
ADM3054 140 2.5 2.4 2.3 2.2 2.1 2.0 1.9 4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25 SUPPLY VOLTAGE, VDD2 (V) VDD1 = 3.3V, VDD2 = 5V VDD1 = 5V, VDD2 = 5V 130 120 110 100 90 80 –50 75 100 125 2.65 REFERENCE VOLTAGE, VREF (V) 4.87 4.86 4.85 2.60 2.55 2.50 2.45 2.40 –25 0 25 50 75 100 125 TEMPERATURE (°C) 10274-023 RECEIVER OUTPUT VOLTAGE HIGH, VOH (V) 50 2.70 VDD1 = 5V, VDD2 = 5V 4.88 2.
PAGE 12
ADM3054 Data Sheet 2.42 146 VDD1 = 5V, VDD2 = 5V VDD1 = 5V, VDD2 = 5V 2.40 VDD2SENSE THRESHOLD VOLTAGE HIGH TO LOW, VTH (SENSE) (V) 142 140 138 136 134 132 2.36 2.34 2.32 2.30 2.28 128 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) 10274-026 130 200 VDD1 = 5V, VDD2 = 5V 198 196 194 192 190 188 186 –25 0 25 50 75 100 125 TEMPERATURE (°C) 10274-027 184 182 –50 Figure 20. Disable Time, VDD2 Low to VDD2SENSE High vs. Temperature Rev. D | Page 12 of 20 Downloaded from Arrow.com. 2.
PAGE 13
Data Sheet ADM3054 TEST CIRCUITS AND SWITCHING CHARACTERISTICS RL 2 VCANH RL 2 CANH VOC VCANL VID RxD CL CANL Figure 22. Driver Voltage Measurement Figure 24. Receiver Voltage Measurements CANH TxD RL CL CANL 10274-003 RxD 15pF Figure 23. Switching Characteristics Measurements VRxD HIGH LOW VID (V) 0.9 0.5 10274-004 VHYS Figure 25. Receiver Input Hysteresis 5V VTH(SENSE) VTH(SENSE) VDD2 0V tSE tSD VDD1 0.4V 0V Figure 26. VDD2SENSE Enable/Disable Time Rev.
PAGE 14
ADM3054 Data Sheet VDD1 0.7VDD1 VTxD 0.25VDD1 0V VOD VDIFF = VCANH – VCANL VDIFF 0.9V 0.5V VOR tOFFTxD tONTxD VDD1 VDD1 – 0.3V VRxD 10274-007 0.4VCC tONRxD 0V tOFFRxD Figure 27.
PAGE 15
Data Sheet ADM3054 THEORY OF OPERATION CAN TRANSCEIVER OPERATION TRUTH TABLES A CAN bus has two states: dominant and recessive. A dominant state is present on the bus when the differential voltage between CANH and CANL is greater than 0.9 V. A recessive state is present on the bus when the differential voltage between CANH and CANL is less than 0.5 V. During a dominant bus state, the CANH pin is high and the CANL pin is low.
PAGE 16
ADM3054 Data Sheet ELECTRICAL ISOLATION iCoupler Technology In the ADM3054, electrical isolation is implemented on the logic side of the interface. Therefore, the device has two main sections: a digital isolation section and a transceiver section (see Figure 29). The driver input signal, which is applied to the TxD pin and referenced to the logic ground (GND1), is coupled across an isolation barrier to appear at the transceiver section referenced to the isolated ground (GND2).
PAGE 17
Data Sheet ADM3054 MAGNETIC FIELD IMMUNITY The limitation on the magnetic field immunity of the iCoupler is set by the condition in which an induced voltage in the receiving coil of the transformer is large enough to either falsely set or reset the decoder. The following analysis defines the conditions under which this may occur. The 3 V operating condition of the ADM3054 is examined because it represents the most susceptible mode of operation.
PAGE 18
ADM3054 Data Sheet APPLICATIONS INFORMATION TYPICAL APPLICATIONS 3.3 OR 5V SUPPLY 5V ISOLATED SUPPLY CT 100nF 100nF 3.3 OR 5V SUPPLY RT/2 RT/2 VDD2 VDD1 100nF ISOLATION BARRIER ADM3054 VDD2 VOLTAGE SENSE CAN TRANSCEIVER VDD2SENSE CAN CONTROLLER DECODE ENCODE ENCODE DECODE THERMAL SHUTDOWN TxD D BUS CONNECTOR CANH R RxD VOLTAGE REFERENCE DIGITAL ISOLATION iCoupler® VREF BUS SIDE GND2 GND1 NOTES 1. RT iS EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE USED. Figure 32.
PAGE 19
Data Sheet ADM3054 RT/2 RT/2 CT CT RT/2 RT/2 CANL CANH CANL ADM3054 R D VDD2 SENSE GALVANIC ISOLATION TxD RxD VDD2SENSE R D VDD2 SENSE GALVANIC ISOLATION RxD TxD VDD2SENSE NOTES 1. MAXIMUM NUMBER OF NODES: 110. 2. RT IS EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE USED. Figure 33. Typical CAN Bus Using the ADM3054 Rev. D | Page 19 of 20 Downloaded from Arrow.com.
PAGE 20
ADM3054 Data Sheet PACKAGING AND ORDERING INFORMATION OUTLINE DIMENSIONS 10.50 (0.4134) 10.10 (0.3976) 9 16 7.60 (0.2992) 7.40 (0.2913) 1 8 1.27 (0.0500) BSC 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 0.51 (0.0201) 0.31 (0.0122) 10.65 (0.4193) 10.00 (0.3937) 0.75 (0.0295) 45° 0.25 (0.0098) 2.65 (0.1043) 2.35 (0.0925) SEATING PLANE 8° 0° 0.33 (0.0130) 0.20 (0.0079) 1.27 (0.0500) 0.40 (0.