TLE 6255 G Infineon Technologies, TLE 6255 G Datasheet - Page 5

• Manufacturer Part Number: TLE 6255 G
• Manufacturer: Infineon Technologies

Specifications of TLE 6255 G

• Packages: P-DSO-14
• Transmission Ratemax: 33.0 kbit/s
• Quiescent Current (max.): < 70 µA sleep mode
• Bus Wake-up Capability: Yes
• Additional Features: Mx, RSL, LOAD
• Wake-up Inputs: Bus wake-up

6
6.1
By use of the two mode control pins M0 and M1 the transceiver can be set in the
following modes.
Table 1
#
1
2
3
4
Sleep-Mode
In the sleep mode the total current consumption of the TLE 6255 G is reduced to typically
30 A. Nodes not set to sleep mode can communicate without disturbing ECUs that are
already set to sleep mode. To achieve a wake-up via the CAN bus a high voltage level
message (wake-up call) is necessary. Only high voltage level messages are reported to
the RxD pin in sleep mode. A wake-up from sleep mode of the transceiver itself has to
be done by setting the control inputs M0 and M1. If there is no modification on the mode
inputs the device remains in sleep mode after the wake-up signal is removed from the
bus.
The transceiver’s loss of ground protection circuit connection to ground is not interrupted
when in the sleep mode.
High-Speed-Mode
The high-speed mode can be used for software or diagnostic data download with bitrates
up to 100 kBit/s. Therefore the slewrate control feature is deactivated to achieve the
required timings. Further an additional external resistor of 100
necessary in this mode.
Wakeup-Call Mode
In this mode the TLE 6255 G sends the message to be transmitted as a high voltage
wake-up message.
The bus includes a special node wake up capability which allows normal communication
to take place among some nodes while leaving the other nodes in an undisturbed sleep
state. This is accomplished by controlling the level of the signal voltages such that all
nodes must wake up when they receive a higher voltage message signal waveform.
Communication at the lower, normal voltage levels shall not disturb the sleeping nodes
(
Data Sheet Rev. 2.5
V
batt
> 9 V).
M0
Low
High
Low
High
Functional Description and Application Hints
Transceiver Modes
Mode Control
M1
Low
Low
High
High
5
Mode
Sleep mode
High speed mode
Wake-up call
Normal mode
from CANH to GND is
TLE 6255 G
2003-11-27