Data Sheet
102
Rev. 1.00
2017-07-31
TLE9263BQXV33
Fail Outputs
Note:
The Fail output pin is triggered for any of the above described failures. No FAILURE is caused for the
1st watchdog failure if selected for Config2.
The three fail outputs are activated simultaneously with following output functionalities:
•
FO1: Static fail output
•
FO2: 1.25Hz, 50% (typ.) duty cycle, e.g. to generate an indicator signal
•
FO3: 100Hz PWM, 20% (typ.) duty cycle, e.g. to generate a dimmed rear light from a break light.
Note:
The duty cycle for FO3 can be configured via SPI option to 20%, 10%, 5% or 2.5%. Default value is
20%. See the register
FO_DC
for configuration.
14.1.1
General Purpose I/O Functionality of FO2 and FO3 as Alternate Function
In case that FO2 and FO3 are not used in the application, those pins can also be configured with an alternate
function as high-voltage (VSHS related) General Purpose I/O pins.
Figure 45 Simplified General Purpose I/O block diagram for FO2 and FO3/TEST
The pins are by default configured as FO pins. The configuration is done via the SPI register
GPIO_CTRL
. The
alternate function can be:
•
Wake Inputs: The detection threshold
V
GPIOI,th
is similar as for the WK inputs. The wake-up detection behavior
is the same as for WKx pins. Wake events are stored and reported in
WK_STAT_2
.
•
Low-Side Switches: The switch is able to drive currents of up to 10mA (see also
V
GPIOL,L1
). It is self-protected
with regards to current limitation. No other diagnosis is implemented.
•
High-Side Switches: The switch is able to drive currents up to 10mA (see also V
GPIOH,H1
). It is self-protected
with regards to current limitation. No other diagnosis is implemented.
•
If configured as GPIO then the respective level at the pin will be shown in
WK_LVL_STAT
in SBC Normal and
Stop Mode. This is also the case if configured as LS/HS and can serve as a feedback about the respective
state. GPIO2 is shared with the TEST level bit.
Table 25
describes the behavior of the FO/GPIO pins in their different configurations and SBC modes.
Config &
Control Logic
FOx/
GPIOx
VSHS
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