TLE7269G Datasheet, PDF (8/34 Pages) Infineon Technologies AG – Twin LIN Transceiver

4.1
TLE7269G
Operating Modes
Functional Description
Note 1:
TxD1:
TxD1:
Strong Pull Down > 1.5 mA
after Wake-Up via pin WK
Weak Pull Down 350 kΩ
after Power-Up and
Wake-Up via BUS1 or BUS2
Start-Up
Power-Up
Stand-By Mode
INH1, INH2 = HIGH
TxD1 (see Note 1)
RxD1, RxD2 (see Note 2)
Note 2:
RxD1:
RxD1:
RxD2:
logical „High“
after Power-Up
logical „Low“
after Wake-Up via BUS1 or BUS2
or after Wake-Up via pin WK
logical „Low“
after Wake-Up via BUS2
EN
Go To Normal
Operation Mode
TxD1
EN High
Low Slope Mode
(Transceiver 1 &
Transceiver 2)
INH1 = HIGH
INH2 = HIGH
EN = HIGH
EN
EN
LOW
HIGH
Status TxD1?
TxD1
EN High
Normal Operation Mode
EN
TxD1
Flash Mode
(Transceiver 1 &
Transceiver 2)
INH1 = High
INH2 = High
EN = High
EN
TxD1
Normal Slope Mode
(Transceiver 1 &
Transceiver 2)
INH1 = HIGH
INH2 = HIGH
EN = HIGH
EN
Go To
Sleep Mode
EN Low
EN
LOW
HIGH
Status W2O ?
EN Low
Sleep Mode
INH1/INH2 = Float
EN = LOW
RxD1/RxD2 = Float
EN
Sleep Mode
INH1/INH2 = Float
EN = LOW
RxD1/RxD2 = Float
Bus Wake-Up
feature on BUS2
turned off!
EN
Figure 4
Wake-Up
via on pin Wk
via on pin BUS1 or BUS2
Operation Mode State Diagram
Data Sheet
8
Wake-Up
via on pin Wk
via on pin BUS1 only !
Rev. 1.2, 2007-11-13