Data Sheet
28
Rev. 1.00
2017-07-31
TLE9262BQXV33
System Features
5.1.3
SBC Stop Mode
The SBC Stop Mode is the first level technique to reduce the overall current consumption by setting the
voltage regulators VCC1, VCC2 and VCC3 into a low-power mode. In this mode VCC1 is still active and supplying
the microcontroller, which can enter a power down mode. The VCC2 supply, CAN & LIN mode as well as the
HSx outputs can be configured to stay enabled. All kind of settings have to be done before entering SBC Stop
Mode. In SBC Stop Mode any kind of SPI WRITE commands are ignored and the
SPI_FAIL
bit is set, except for
changing to SBC Normal Mode, triggering a SBC Soft Reset, refreshing the watchdog as well as for reading and
clearing the SPI status registers. A wake-up event on CAN, LINx and WKx will create an interrupt on pin INT -
however, no change of the SBC mode will occur. The configuration options are listed below:
•
VCC1 is ON
•
VCC2 is fixed as configured in SBC Normal Mode
•
VCC3 is fixed as configured in SBC Normal Mode
• CAN mode is fixed as configured in SBC Normal Mode
•
LIN mode is fixed as configured in SBC Normal Mode
• WK pins are fixed as configured in SBC Normal Mode
•
HS Outputs are fixed as configured in SBC Normal Mode
•
Cyclic sense is fixed as configured in SBC Normal Mode
•
Cyclic wake is fixed as configured in SBC Normal Mode
•
Watchdog is fixed as configured in SBC Normal Mode
•
SBC Soft Reset can be triggered
•
FOx outputs are fixed, i.e. the state from SBC Normal Mode is maintained
An interrupt is triggered on the pin INT when SBC Stop Mode is entered and not all wake source signalization
flags from
WK_STAT_1
and
WK_STAT_2
were cleared.
Note:
If switches are enabled during SBC Stop Mode, e.g. HSx on with or without PWM, then the SBC current
consumption will increase (see
Chapter 4.4
).
Note:
It is not possible to switch directly from SBC Stop Mode to SBC Sleep Mode. Doing so will also set the
SPI_FAIL
flag and will bring the SBC into Restart Mode.
Note:
When WK1 and WK2 are configured for the alternate measurement function (
WK_MEAS
= 1) then the
wake inputs cannot be selected as wake input sources.