Description：

The L9369 targets the specific application ofelectric parking braking, suitable for systemconfiguration in cable-puller or Motor Gear Unit(MGU).The cores are two H-bridge driver stages to drive8 external FETs for the rear wheels brakesactuators. The stages are fully driven andconfigurable via SPI, also in PWM control modeand protected against overcurrent, with drainsource and gate-source voltages monitoring.A synchronized motor voltages and currentsacquisition, is performed via full differentialamplifiers with programmable and precise gainand low offset and 10 ADC sigma-deltamodulators.Two configurable HS/LS stages are present withprogrammable output voltage to drive LED arrays,with feedforward regulation.2 Motor Speed Sensor interfaces (MSS) areavailable to acquire position feedback from brakeactuators (shared with Lamp driver stage andGPIO).The set of the interfaces is completed by 4 GPIO(General Purpose I/O) pins and a button interfaceallows to manage specific customer requirementsfrom Electronic parking braking (EPB) buttonconsole both in Normal and Sleep Mode. 

Features：

 AEC-Q100 qualified

 Functional safety concept for ISO26262compliance

 4 High-side and Low-side gate pre-drivers for 8external power NFETs

 Overcurrent protection with programmablethresholds

 Programmable and NFET independentthresholds for VDS monitoring

 10 integrated Fully differential amplifiers withlow offset, very precise gain, and self-test

 10 separate ADC channels for digitalprocessing of motor current and voltagemeasurement

 32-bits - 10 MHz SPI with CRC for internalsetting, self-test and diagnostics

 Full drive of external power NFETs down to5.5 V battery input voltage

 Monitoring on Main power supply andcontinuous BIST for internal regulators

 Double Bandgap reference

 4 General Purpose I/O stages (GPIO)

 Button Interface (9 configurable I/O pins) formonitoring and diagnostics in Normal andSleep Mode.

 2 Motor Speed Sensors (MSS) interfaces toacquire speed information feedbacks viaexternal Hall sensors.

 System wake-up in Sleep Mode

 Watchdog (configurable via SPI)