L9396 Automotive multiple power supply IC Datasheet - production data Four channels configurable remote sensor interface wheel speed sensor protocol tracking regulator supply (3.3 V - 5 V) reverse battery protection and integrated digital decoding TQFP64 (exposed pad down) High-side pre-drivers for fail safe (On/off control) and for motor pump (PWM control) GAPGPS00129 SPI communication bus Features Configurable 3.3 V / 5 V I/O level Configurable and programmable double AEC-Q100 qualified watchdog (Q&A WD and time-windowed WD) Full ISO26262 compliant, ASIL-D systems Double voltage reference for regulated rail ready reference and monitoring Integrated boost regulator, 9 V, 300 mA, Configurable Fail-Safe Functionality (Mode / 2 MHz (opt. populated diode & inductor) for Safe Delay) deep cranking pulse (Stop&Start) & weak battery conditions Fail-Safe Output (FSN) Integrated buck pre-regulator, 6.5 V / 7.2 V, Wake-up input 1 A, 465 kHz Low-side general purpose output with Integrated LDO, 5 V, 250 mA for C I/O and programmable PWM control ADC supply Integrated 10-bits ADC with system Integrated configurable LDO, 3.3 V / 5 V, diagnostics 100 mA for C I/O supply Discrete analog inputs for integrated ADC Configurable and programmable regulator with measurement (3 ch.) external FET, 0.8 V to 5 V for C core supply Voltage monitoring UV/OV on all regulated rails up to 1 A in buck configuration Temperature monitoring and thermal shutdown up to 750 mA in linear configuration Operating voltage: VBATP: 4.5 V to 19 V with Spread spectrum approach to reduce EMC boost 6 V to 19 V without boost emissions Ambient temperature range: -40 C to 135 C Package: TQFP64EP (10x10x1mm) Table 1. Device summary Order code Package Packing TQFP64 10 x 10 x 1 mm L9396 Tube (exposed pad down) December 2021 DS12539 Rev 5 1/109 This is information on a product in full production. www.st.comContents L9396 Contents 1 Description . 8 2 Overall description 9 2.1 Block diagram . 9 2.2 Pins description 10 2.3 Absolute maximum ratings 13 2.4 Operating range 16 3 Power supply 18 3.1 Battery range 18 3.2 Boost regulator . 19 3.3 Internal supply . 21 3.4 Wake-up input . 22 3.5 Charge pump 23 3.6 VPREREG buck regulator 24 3.7 VCORE regulator . 27 3.8 VCC5 regulator . 32 3.9 VCC regulator 33 3.10 Protected battery switch 34 3.11 Power up and power down sequences 35 4 Pre-drivers 37 4.1 Fail safe pre-driver 37 4.2 Pump motor pre-driver . 38 4.3 Pump motor diagnostics 38 5 Remote sensor interface 43 5.1 Active wheel speed sensor 43 5.1.1 Wheel speed data register formats 46 5.1.2 Testmode 46 5.1.3 Wheel Speed SPI Registers . 46 5.2 Tracking regulation 58 2/109 DS12539 Rev 5