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PDF TLE7269G Data sheet ( Hoja de datos )
| Número de pieza | TLE7269G | |
| Descripción | Twin LIN Transceiver | |
| Fabricantes | Infineon Technologies | |
| Logotipo |  |
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Data Sheet, Rev. 1.2, Nov. 2007
TLE7269G
Twin LIN Transceiver
Automotive Power
1 page  
3 Pin Configuration
3.1 Pin Assignment
TLE7269G
Pin Configuration
RxD1
EN
WK
TxD1
TxD2
VIO
RxD2
1
2
3
4
5
6
7
14 INH1
13 VS
12 BUS1
11 GND
10 BUS2
9 W2O
8 INH2
Figure 2 Pin Configuration (top view)
Note: The pin configuration of the TLE7269G is pin compatible to the devices TLE7259G and TLE7259-2GE/GU.
In comparison to the TLE7259G and the TLE 7259-2GE/GU, no pull up resistors on the RxD pins are
required for the TLE7269G. Details can be found inside the “Pin Compatibility to the Single LIN
Transceivers” on Page 28.
3.2 Pin Definitions and Functions
Table 1
Pin No.
1
2
3
4
5
6
7
Pin Definitions and Functions
Symbol
Function
RxD1
Receive data output 1;
LOW in dominant state, active LOW after a Wake-Up event at BUS1 or WK pin
EN Enable input;
integrated pull-down, device set to normal operation mode when HIGH
WK Wake input;
active LOW, negative edge triggered, internal pull-up
TxD1
Transmit data input 1;
integrated pull-down, LOW in dominant state; active LOW after Wake-Up via WK pin
TxD2
Transmit data input 2;
integrated pull-down, LOW in dominant state
VIO Logic Voltage supply input;
3.3V or 5V supply for the RxD and TxD pins
RxD2
Receive data output 2;
LOW in dominant state, active LOW after a Wake-Up event at BUS2
Data Sheet
5 Rev. 1.2, 2007-11-13
5 Page 
.
VEN,ON
EN
TLE7269G
Functional Description
TxD1
tTxD,SET
Mode
Transition
tMODE
Data transmission
tto,rec
Stand-By Mode / Sleep Mode
Low Slope Mode
Figure 6 Timing to enter Low Slope Mode
4.2.3
Flash Mode
In Flash mode it is possible to transmit and receive LIN messages on the LIN bus. The slew rate control
mechanism of the LIN bus signal is disabled. This allows higher data transmission rates, disregarding the EMC
limitations of the LIN network. The Flash mode is intended to be used during the ECU production for programming
the microcontroller via the LIN bus interface.
The TLE7269G can be set to Flash mode either from Normal Slope mode or from Low Slope mode (see Figure 4).
Flash mode is entered by setting the EN pin to “Low” for the time tfl1 and generating a falling and a rising edge at
the TxD1 pin with the timing tfl2, tfl3 and tfl4 (see Figure 7). Leaving the Flash mode by the same sequence, sets
the TLE7269G back to its previous state, be that either Normal Slope mode or Low Slope mode. Finally to release
the data transmission it is required to set the TxD1 pin and the TxD2 pin to “High” for the time tto,rec.
The TLE7269G can be set from Flash mode directly to Sleep mode by switching the EN pin to “Low”. Setting the
pin EN to “High” again, the device will return to Flash mode.
Normal Slope Mode
Low Slope Mode
EN
tfl1
Flash Mode
Normal Slope Mode
Low Slope Mode
tfl1
TxD1
Data transmission
tfl2 tfl3
tfl4 ttorec
Figure 7 Timing to enter and exit Flash Mode
tfl2
tfl3
Data transm.
tfl4 ttorec
Data Sheet
11 Rev. 1.2, 2007-11-13
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TLE7269G.PDF ] | |
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