TLE 7259-2GU Infineon Technologies, TLE 7259-2GU Datasheet - Page 13

• Manufacturer Part Number: TLE 7259-2GU
• Manufacturer: Infineon Technologies

Specifications of TLE 7259-2GU

• Packages: PG-DSO-8
• Transmission Ratemax: 10.4 kbit/s
• Quiescent Current (max.): < 10 µA sleep mode
• Bus Wake-up Capability: Yes
• Additional Features: INH, EN, WK
• Wake-up Inputs: Bus wake-up + wake-up pin

The bus Wake-Up event, often called remote Wake-Up, changes the operation mode from Sleep mode to Stand-
By mode. A falling edge on the LIN bus, followed by a dominant bus signal t > t
event. The mode change to Stand-By mode becomes active with the following rising edge on the LIN bus. The
TLE7259-2GU remains in Sleep mode until it detects a change from dominant to recessive on the LIN bus (see
Figure
In Stand-By mode the TxD pin indicates the source of the Wake-Up event. A weak pull-down on the pin TxD
indicates a bus Wake-Up event (see
up event. A “Low” signal on the RxD pin reports a local or bus Wake-Up event, a logical “High“ signal on RxD
indicates a power-up event.
4.7
Figure 8
Beside the remote Wake-Up, a Wake-Up of the TLE7259-2GU via the WK pin is possible. This type of wake-up
event is called “Local Wake Up”. A falling edge on the WK pin followed by a “Low“signal for t > t
Wake-Up (see
In Stand-By mode the TxD pin indicates the source of the Wake-Up event. A strong pull-down on the pin TxD
indicates a bus Wake-Up event (see
occurred. A “Low” signal on the RxD pin reports a local or bus Wake-Up event, a logical “High“signal on RxD
indicates a Power-Up event.
Data Sheet
7).
Local Wake-Up
Local Wake-Up behavior
Figure
V
WK
INH
8) and changes the operation mode to Stand-By mode.
V
WK,L
Sleep Mode
Figure
Figure
WK Signal
4). The RxD pin signals if a Wake-Up event occurred or the power-
4). The RxD pin signals if a Wake-Up event or the Power-Up event
t
WK
13
Stand-By Mode
WK,bus
results in a bus Wake-Up
Functional Description
Rev. 1.1, 2008-07-14
WK
TLE7259-2GU
results in a local