TLE7259-3 Datasheet, PDF (7/32 Pages) Infineon Technologies AG – LIN Transceiver

4.1
Operating Modes
TLE7259-3
Functional Description
Note 1:
TxD:
TxD:
Strong Pull Down > 1.5 mA
after Wake-Up via pin WK
Weak Pull Down 350 kΩ
after Power-Up and
Wake-Up via BUS
Start-Up
Power-Up
Stand-By Mode
INH = HIGH
TxD (see Note 1)
RxD (see Note 2)
Note 2:
RxD:
RxD:
logical „High“
after Power-Up
logical „Low“
after Wake-Up via BUS
or after Wake-Up via pin WK
A external Pull-Up resistor to the external
microcontroller supply is required for the Wake-Up or
Power-Up indication
EN
Go To Normal
Operation Mode
EN High
Normal Operation Mode
Normal Slope Mode
INH = HIGH
EN = HIGH
Flash Mode
EN
INH = HIGH
TxD
EN = HIGH
EN
EN
Go To
Sleep Mode
EN Low
Sleep Mode
INH = Float
EN = LOW
RxD = HIGH¹⁾
EN
Figure 4 Operation Mode State Diagram
1) _{RxD is „High“ due to the external pull-}
up resistor
Wake-Up
via on pin Wk
via on pin BUS
Data Sheet
7
Rev. 1.0, 2013-08-13