TLE6251-3G Infineon Technologies, TLE6251-3G Datasheet - Page 12

• Manufacturer Part Number: TLE6251-3G
• Manufacturer: Infineon Technologies

Specifications of TLE6251-3G

• Packages: PG-DSO-14
• Transmission Ratemax: 1.0 Mbit/s
• Quiescent Current (max.): < 30 µA @ 5V standby
• Bus Wake-up Capability: Yes
• Additional Features: NSTB, WK, EN, NERR, INH, Vio, no SPLIT PIN
• Wake-up Inputs: Bus wake-up + wake-up pin

5.4
The Go-To-Sleep command is a transition mode allowing external circuitry like a microcontroller to prepare the
ECU for the Sleep mode. The TLE6251-3G stays in the Go-To-Sleep command for the maximum time t =
after exceeding the time
possible via the Go-To-Sleep command. During the Go-To-Sleep command the following functions on the
TLE6251-3G are available:
•
•
•
•
•
•
•
•
•
Setting the NSTB pin to logical “Low”, while the EN signal remains at logical “High”, activates the Go-To-Sleep
command. The Go-To-Sleep command can be entered from Normal Operation mode, Receive-Only mode and
from Stand-By mode.
5.5
The Sleep mode is a power save mode. In Sleep mode the current consumption of the TLE6251-3G is reduced to
a minimum while the device is still able to Wake-Up by a message on the CAN bus or a local Wake-Up event on
the pin WK. Most of the functions of the TLE6251-3G are disabled:
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•
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There are only two ways to enter Sleep mode:
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Data Sheet
The output driver stage is disabled.
The normal receiver unit is disabled.
The low power receiver is active and monitors the CAN bus. In case of a message on the CAN bus the
TLE6251-3G sets an internal Wake-Up flag.
The local Wake-Up pin is active and can detect a local Wake-Up event.
The INH output is active and set to
Through the internal resistors
The TxD pin is disabled.
The failure diagnostic is disabled.
The under-voltage detection on all 3 power supplies
The output driver stage is disabled.
The normal receiver unit is disabled.
The low power receiver is active and monitors the CAN bus. In case of a message on the CAN bus the
TLE6251-3G changes from Sleep mode to Stand-By mode and sets an internal Wake-Up flag.
The local Wake-Up pin is active and in case of a signal change on the WK pin the operation mode changes to
Stand-By mode.
The INH output is floating.
Through the internal resistors
If the power supplies
The TxD pin is disabled
The under-voltage detection on the power supply
of an under-voltage event.
The device can activate the Sleep mode via the mode control pins EN and NSTB.
An under-voltage event on the power supplies
Go-To-Sleep Command
Sleep Mode
V
t
CC
hSLP
and
the device changes into Sleep mode. A mode change into Sleep mode is only
R
R
V
I
I
IO
(see
(see
are present, the RxD pin indicates the Wake-Up event.
V
S
Figure
Figure
.
1), the pins CANH and CANL are connected to GND.
1), the pins CANH and CANL are connected to GND.
V
CC
V
S
and
12
is active and sends the device into Stand-By mode in case
V
CC
V
,
IO
V
IO
changes the operation mode to Sleep mode.
and
V
S
is active.
Rev. 1.1, 2011-06-06
Operation Modes
TLE6251-3G
t
hSLP
,