L9370TR Active

Automotive IC for a specific application of electric parking braking
Operating RangeAutomotive
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius175.0
Operating Voltage Min Volt3.4
Operating Voltage Max Volt32.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeEcopack2
GradeAutomotive
Package NameLQFP 64 10x10x1.4
Key Features
  • AEC-Q100 qualified
  • Functional safety concept for ISO26262 compliance
  • 4 High-side and Low-side gate pre-drivers for 8 external power NFETs
  • Overcurrent protection with programmable thresholds
  • Programmable and NFET independent thresholds for VDS monitoring
  • 10 integrated Fully differential amplifiers with low offset, very precise gain, and self-test
  • 10 separate ADC channels for digital processing of motor current and voltage measurement
  • 32-bits - 10 MHz SPI with CRC for internal setting, self-test and diagnostics
  • Full drive of external power NFETs down to 5.5 V battery input voltage
  • Monitoring on Main power supply and continuous BIST for internal regulators
  • Double Bandgap reference
  • 4 General Purpose I/O stages (GPIO)
  • Button Interface (9 configurable I/O pins) for monitoring and diagnostics in Normal and Sleep Mode.
  • 2 Motor Speed Sensors (MSS) interfaces to acquire speed information feedbacks via external Hall sensors.
  • System wake-up in Sleep Mode
  • Watchdog (configurable via SPI)

The L9370 targets the specific application of electric parking braking, suitable for system configuration in cable-puller or Motor Gear Unit (MGU).


The cores are two H-bridge driver stages to drive 8 external FETs for the rear wheels brakes actuators. The stages are fully driven and configurable via SPI, also in PWM control mode and protected against overcurrent, with drain-source and gate-source voltages monitoring.


A synchronized motor voltages and currents acquisition, is performed via full differential amplifiers with programmable and precise gain and low offset and 10 ADC sigma-delta modulators.


Two configurable HS/LS stages are present with programmable output voltage to drive LED arrays, with feedforward regulation.


2 Motor Speed Sensor interfaces (MSS) are available to acquire position feedback from brake actuators (shared with Lamp driver stage and GPIO).


The set of the interfaces is completed by 4 GPIO (General Purpose I/O) pins and a button interface allows to manage specific customer requirements from Electronic parking braking (EPB) button console both in Normal and Sleep Mode.

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