© Technosoft 2011 16
IDMx40 Technical Reference
CAN-Bus
All voltages referenced to CAN_GND
Min. Typ. Max. Units
Physical layer Standards compliance ISO11898-2
Transport layer Standards compliance CAN-Bus v2.0 B
Recommended transmission line
impedance
Measured at 1MHz 90 120 150
Ω
Bit rate Depending on software settings 125K 1M Baud
1Mbps 40m
Bus length
For other speeds see CiA DR-303-1
Bit rate = 125kbps …250kbps 64 -
Bit rate = 500kbps 50 -
Number of network nodes
Bit rate = 1Mbps 32 -
ESD Protection Human Body Model
±15
kV
Supply Outputs
Min. Typ. Max. Units
+5 V
DC
voltage Current sourced = 350 mA 4.75 5 5.25 V
+5 V
DC
available current 350 mA
1
Differential input impedance is ≥1.5KΩ. For full RS-422 compliance, 120Ω termination resistors must be connected
across the differential pairs, as close as possible to the drive input pins.
2
“FS” stands for “Full Scale”
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. Exposure
to absolute maximum-rated conditions for extended periods may affect device reliability.
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