Datasheet

Analog Integrated Circuit Device Data
Freescale Semiconductor 25
07XSC200
4.3.3 MCU Interface and Output Control
In Normal mode, each bulb is controlled directly from the MCU through the SPI. A pulse width modulation control module allows
improvement of lamp lifetime with bulb power regulation (PWM frequency range from 100 to 400
Hz) and addressing the dimming
application (day running light). An analog feedback output provides a current proportional to the load current or the temperature
of the board. The SPI is used to configure and to read the diagnostic status (faults) of high side outputs. The reported fault
conditions are: OpenLoad, short-circuit to battery, short-circuit to ground (overcurrent and severe short-circuit), thermal
shutdown, and under/overvoltage.
In Fail-safe mode, each lamp is controlled with dedicated parallel input pins. The device is configured in default mode.