L9369 Automotive IC for a specific application of electric parking braking Data brief
■ Description
● The L9369 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.
■ Features
● AEC-Q100 qualified
● Functional safety concept for IS026262 compliance
● 4 High-side and Low-side gate pre-driversfor8 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.
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Datasheet |
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Please see the document for details |
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LQFP64 |
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English Chinese Chinese and English Japanese |
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January 2019 |
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Rev 1 |
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DB3819 |
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514 KB |
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