TLE 6254-3G Infineon Technologies, TLE 6254-3G Datasheet - Page 10

• Manufacturer Part Number: TLE 6254-3G
• Manufacturer: Infineon Technologies

Specifications of TLE 6254-3G

• Packages: PG-DSO-14
• Transmission Ratemax: 125.0 kbit/s
• Quiescent Current (max.): < 65 µA sleep mode
• Bus Wake-up Capability: Yes
• Additional Features: INH, NERR, NSTB, ENT, WK, RTL, RTH
• Wake-up Inputs: Bus wake-up + wake-up pin

If either of the supply voltages drops below the specified limits, the transceiver is
automatically switched to
Table 2
NSTB ENT Mode
0
0
0
1
1
1) Wake-up interrupts are released when entering normal operation mode.
2) If go to sleep command was used before, ENT may turn LOW as
3)
Bus Failure Management
The TLE6254-3G detects the bus failures as described in
switches to a dedicated CANH or CANL single wire mode to maintain data transmission
if necessary. Therefore, the device is equipped with one differential receiver and 4 single
ended receivers, two for each bus line. To avoid false triggering by external RF
influences the single wire modes are only activated after a certain delay time. As soon
as the bus failure disappears the transceiver switches back to differential mode after
another time delay. Bus failures are indicated in the normal operation mode by setting
the NERR output low.
The differential receiver threshold is typ. -3.1 V. This ensures correct reception in the
normal operation mode as well as in the failure cases 1, 2 and 4 with a noise margin as
high as possible. For these failures, further failure management is not necessary.
Detection of the failure cases 1, 2, 3a and 4 is only possible when the bus is dominant.
Nevertheless, they are reported on the NERR output until transmission of the next CAN
word on the bus begins.
Data Sheet
functions.
V
BAT
power-on flag will be reseted when entering normal operation mode.
0
0
1
0
1
Truth Table of the CAN Transceiver
V
mode
sleep mode
go to sleep
command
Receive-only
mode
normal mode
BAT
stand-by
1)
V
2)
BAT
INH
V
floating
becomes
floating
V
V
stand-by mode or power down mode respectively.
BAT
BAT
BAT
NERR
active LOW wake-up interrupt if
V
active LOW
V
flag
active LOW
bus error flag
10
CC
BAT
3)
is present
power-on
RxD
HIGH = recessive
receive data;
LOW = dominant
receive data
HIGH = recessive
receive data;
LOW = dominant
receive data
V
CC
Table
drops, without affecting internal
3, and automatically
Rev. 2.1, 2007-08-09
TLE6254-3G
RTL
switched
to
switched
to
switched
to
switched
to
switched
to
V
V
V
V
V
BAT
BAT
BAT
CC
CC