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AMIS-42670 Datasheet

High-Speed CAN Transceiver

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AMIS-42670
High-Speed CAN
Transceiver for Long
Networks
Description
The AMIS42670 CAN transceiver is the interface between a
controller area network (CAN) protocol controller and the physical
bus and may be used in both 12 V and 24 V systems. The transceiver
provides differential transmit capability to the bus and differential
receive capability to the CAN controller. Due to the wide
commonmode voltage range of the receiver inputs, the AMIS42670
is able to reach outstanding levels of electromagnetic susceptibility
(EMS). Similarly, extremely low electromagnetic emission (EME) is
achieved by the excellent matching of the output signals.
The AMIS42670 is the industrial version of the AMIS30660 and
primarily intended for applications where long network lengths are
mandatory. Examples are elevators, inbuilding networks, process
control and trains. To cope with the long bus delay the communication
speed needs to be low. AMIS42670 allows low transmit data rates
down 10 kbit/s or lower.
Features
Fully Compatible with the ISO 118982 Standard
Certified “Authentication on CAN Transceiver Conformance (d1.1)”
Wide Range of Bus Communication Speed (0 Mbit/s up to 1 Mbit/s)
Allows Low Transmit Data Rate in Networks Exceeding 1 km
Ideally Suited for 12 V and 24 V Industrial and Automotive
Applications
Low Electromagnetic Emission (EME) CommonMode Choke is No
www.DataSLheoentg4Uer.cRomequired
Differential Receiver with Wide CommonMode Range ($35 V) for
High EMS
No Disturbance of the Bus Lines with an Unpowered Node
Thermal Protection
Bus Pins Protected Against Transients
Silent Mode in which the Transmitter is Disabled
Short Circuit Proof to Supply Voltage and Ground
Logic Level Inputs Compatible with 3.3 V Devices
These are PbFree Devices*
http://onsemi.com
PIN ASSIGNMENT
TxD 1
GND 2
VCC 3
RxD 4
8S
7 CANH
6 CANL
5 VREF
PC20041204.3
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2009
January, 2009 Rev. 3
1
Publication Order Number:
AMIS42670/D


  ON Semiconductor Electronic Components Datasheet  

AMIS-42670 Datasheet

High-Speed CAN Transceiver

No Preview Available !

AMIS42670
Table 1. TECHNICAL CHARACTERISTICS
Symbol
Parameter
Condition
VCANH
VCANL
Vo(dif)(bus_dom)
DC Voltage at Pin CANH
DC Voltage at Pin CANL
Differential Bus Output Voltage in
Dominant State
0 < VCC < 5.25 V; no time limit
0 < VCC < 5.25 V; no time limit
42.5 W < RLT < 60 W
tpd(recdom)
tpd(domrec)
CMrange
Propagation Delay TxD to RxD
Propagation Delay TxD to RxD
Input CommonMode Range for
Comparator
See Figure 6
See Figure 6
Guaranteed Differential Receiver Threshold
and Leakage Current
VCMpeak
CommonMode Peak
See Figures 7 and 8 (Note 1)
VCMstep
CommonMode Step
See Figures 7 and 8 (Note 1)
1. The parameters VCMpeak and VCMstep guarantee low electromagnetic emission.
VCC
S8
VCC
Thermal
Shutdown
3
Max Max
45 +45
45 +45
1.5 3
70 245
100 245
35 +35
500
150
500
150
Unit
V
V
V
ns
ns
V
mV
mV
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TxD
1
AMIS42670
Driver
Control
7 CANH
6 CANL
RxD 4
VREF 5
COMP
Ri(cm)
Vcc/2
+
Ri(cm)
2
PD20070831.4
GND
Figure 1. Block Diagram
Table 2. PIN DESCRIPTION
Pin Name
Description
1 TxD Transmit Data Input; Low Input Dominant Driver; Internal Pullup Current
2
GND
Ground
3 VCC Supply Voltage
4 RxD Receive Data Output; Dominant Transmitter Low Output
5
VREF
Reference Voltage Output
6
CANL
LowLevel CAN Bus Line (Low in Dominant Mode)
7
CANH
HighLevel CAN Bus Line (High in Dominant Mode)
8 S Silent Mode Control Input; Internal Pulldown Current
http://onsemi.com
2


Part Number AMIS-42670
Description High-Speed CAN Transceiver
Maker ON Semiconductor
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AMIS-42670 Datasheet PDF






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