TLE9263QX datasheet(96/164 Pages) INFINEON

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Data Sheet

Rev. 1.1, 2014-09-26

TLE9263QX

Fail Outputs

•

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 VGPIOI,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 VGPIOL,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 VGPIOH,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.

Figure 46 describes the behavior of the FO/GPIO pins in their different configurations and SBC modes.

Figure 46

FO / GPIO behavior for the respective SBC modes

Note: In order to avoid unintentional entry of SBC Development Mode care must be taken that the level of

FO3/TEST is HIGH during device power up and SBC Init Mode.

Note: The FOx drivers are supplied via VS. However, the GPIO HS switches (FO2, FO3/TEST) are supplied by

VSHS

Config &

Control Logic

FOx/

GPIOx

VSHS

Function

Normal Mode

Stop Mode

Sleep Mode

Fail-Safe Mode

FOx

keeps the state

active

wake capable

OFF

as configured in Normal Mode

OFF

as configured in Normal Mode

OFF

configurable

TLE9263QX Datasheet(PDF) 96 Page - Infineon Technologies AG

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