TLE7809G Datasheet, PDF (10/52 Pages) Infineon Technologies AG – Integrated double low-side switch, high-side/LED driver, hall supply, wake-up inputs and LIN communication with embedded MCU (16kB Flash)

Start Up
Power Up
TLE7809G
Operating Modes
SBC Stop Mode
MS2 MS1 MS0 Vcc
1
1
1
ON
SBC Stand-By
SBC Sleep Mode
MS2 MS1 MS0 Vcc
1
0
0 OFF
SBC Active Mode
MS2 MS1 MS0 Vcc
0
1
1 ON
SBC Active Mode:
„LIN Sleep“
MS2 MS1 MS0 Vcc
0
1
0 ON
LIN Receive-Only
MS2 MS1 MS0 Vcc
1
1
0
ON
on wake-up / after reset
Figure 4 State Diagram “SBC Operation Modes”
4.1
SBC Standby Mode
After powering-up the SBC or wake-up from power-saving, it automatically starts-up in SBC Standby Mode,
waiting for the microcontroller to finish its startup and initialization sequences. However, this mode cannot be
selected via SPI command. From this transition mode the SBC can be switched via SPI command into the desired
operating mode. All modes are selected via SPI bits or certain operation conditions, e.g. external wake-up events.
4.2
SBC Active Mode
The SBC Active Mode is used to transmit and receive LIN messages and provides the sub-mode “LIN Sleep”.
Data Sheet
10
Rev. 3.01, 2008-04-15