L9369-TR

L9369 Automotive IC for a specific application of electric parking braking Data brief  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) '!0'03 Description LQFP64 (10x10x1.4mm) The L9369 targets the specific application of electric parking braking, suitable for system configuration in cable-puller or Motor Gear Unit (MGU). 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 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 drainsource and gate-source voltages monitoring.  10 integrated Fully differential amplifiers with low offset, very precise gain, and self-test 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.  10 separate ADC channels for digital processing of motor current and voltage measurement Two configurable HS/LS stages are present with programmable output voltage to drive LED arrays, with feedforward regulation.  32-bits - 10 MHz SPI with CRC for internal setting, self-test and diagnostics 2 Motor Speed Sensor interfaces (MSS) are available to acquire position feedback from brake actuators (shared with Lamp driver stage and GPIO).  Programmable and NFET independent thresholds for VDS monitoring  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. January 2019 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. Table 1. Device summary Order code Package Packing L9369-TR LQFP64 Tape & Reel DB3819 Rev 1 For further information contact your local STMicroelectronics sales office. 1/13 www.st.com Contents L9369 Contents 1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 2/13 2.1 LQFP64 (10x10x1.4 mm) package information . . . . . . . . . . . . . . . . . . . . . 9 2.2 LQFP64 (10x10x1.4 mm) marking information . . . . . . . . . . . . . . . . . . . . 11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 DB3819 Rev 1 L9369 Block diagram and pin description Figure 1. Simplified block diagram 9%3 593* 3RZHU 6XSSO\ 593* +6287 0668&B$ /RJLF 2VFLOODWRU 9%3 $'& 63,FWUO /DPS GULYHU +6287 96&3 &+ *3,2[063B[ *3,2\060B[ 99,1 9$1$/2* $*1' &KDUJH 3XPS 066 &/ &+ &/ :DWFKGRJ 0668&B% &3 96%5,'*(B$ *3,2 *+B$ 6+B$ 9ROWDJH 0HDVXUHPHQW $ *,2 *,2 */B$ +EULGJH 'ULYHU $ *,2 *,2 *+B$ 6+B$ */B$ *,2 %87721 ,17(5)$&( $'& 6/B$ 63,FWUO 9'6WKU *,2 96%5,'*(B% *,2 *+B% *,2 6+B% 9ROWDJH 0HDVXUHPHQW % *,2 +EULGJH 'ULYHU % */B% *+B% 6+B% 63,&/. */B% 026, 0,62 63, 6/B% 63,FWUO 29&WKU 63,&6 9'6WKU 1 Block diagram and pin description &6,13B$ 2YHUFXUUHQW 'HWHFWLRQ $ :$8 (1B(/ 6