Kvaser LAPcan / LAPcan II Hardware Guide
15(18)
Kvaser AB, Mölndal, Sweden — www.kvaser.com
8.1 Technical Data for DRVcan 251
Transceiver type
Philips 82c251
Current consumption
40 mA (average)
Maximum bus speed
1 Mbit/s
DRVcan 251 does not have built-in CAN bus termination.
8.2 Technical Data for DRVcan 1053
Transceiver type
Philips TJA1053
Current consumption
20 mA (average)
Maximum bus speed
125 kbit/s
Built-in termination, RTH
4.7 k
Built-in termination, RTL
4.7 k
Note: the termination resistors RTH and RTL are optimized for bus analyzing tools. This means that
they do not load the bus enough to ensure proper signal levels if there are no other "real" nodes on the
bus. If you connect just two DRVcan 1053:s to a long (several meters) bus, the communication may or
may not work.
8.3 Technical Data for DRVcan 1054
Transceiver type
Philips TJA1054
Current consumption
20 mA (average)
Maximum bus speed
125 kbit/s
Built-in termination, RTH
4.7 k
Built-in termination, RTL
4.7 k
Note: the termination resistors RTH and RTL are optimized for bus analyzing tools. This means that
they do not load the bus enough to ensure proper signal levels if there are no other "real" nodes on the
bus. If you connect just two DRVcan 1054:s to a long (several meters) bus, the communication may or
may not work.
8.4 Technical Data for DRVcan DNopto
Transceiver type
Philips 82c251
Current consumption
80 mA (average)
Maximum bus speed
1 Mbit/s
Optocoupler type
HCPL 7101-3
Optocoupler delay
20 ns
Isolation voltage
50 V AC, 70 V DC
The transceiver in the DRVcan DNopto can be powered either from the Kvaser LAPcan, or externally
by connecting a power source to pin 9 on the D-SUB.
There is no built-in CAN bus termination in the DRVcan DNopto.
