Features
• AEC-Q100 qualified
• One 5 V (or 3.3 V for SPSB0813 and SPSB081C3) low drop voltage regulator
(V1) for microcontroller and peripheral supply
• One configurable 5 V or 3.3 V low drop voltage regulator V2 selectable via SPI,
tracker for V1
• Minimum current limitation of 450 mA for V1 and 400 mA for V2
• No electrolytic capacitor required on regulator outputs
• Very low quiescent current in standby modes (typ. 15 µA)
• Programmable reset generator for power-on and undervoltage
• Configurable Window Watchdog
• LIN transceivers ISO 17987-4/2016 and SAE J2962-1 (draft nov. 2017)
compliant (only for SPSB0815 and SPSB0813)
• CAN-FD transceiver (ISO 11898-2/2016, SAE J2284 and SAE J2962-2 (draft
nov. 2017) compliant) with local failure and bus failure diagnosis
• Complete 2-channel contact monitoring interface (WU1 and WU2 input pins)
with programmable cyclic sense functionality. WU2 also with DIR functionality
• Programmable periodic system wake-up feature
• STM standard serial peripheral interface (32Bit / ST-SPI)
• 4 HS drivers for 0.14A (RON = 7 Ω) suitable to drive external LED modules with
high input capacitance value or to also supply external contacts
• Internal 10bit PWM timer for each stand-alone high-side driver
• Buffered supply for all voltage regulators
• DIAGN output pin for fail-safe signalization
• Current monitor output for all internal high-side drivers
• Open-load diagnosis for all outputs
• Overcurrent protection for all outputs
• V1 overvoltage detection and protection
• Device contains temperature warning and protection
• Thermal cluster
• Limited documentation available for customers that need support when dealing
with ASIL requirements as per ISO 26262

Description
The SPSB081 is a power management system IC providing electronic control modules with enhanced
power management functionality, including various standby modes to minimize the power consumption with
programmable local and remote wake-up capability, as well as LIN (only for SPSB0815 and SPSB0813) and
CAN FD physical communication layers. The device has one low-drop voltage regulator to supply the system
microcontroller and one voltage tracker to supply external peripheral loads such as sensors. V1 is available with
a fixed rail (5 V or 3.3 V) and V1 overvoltage detection and protection solution, while V2 is a tracker voltage
regulator of V1, programmable by SPI with 5 V or 3.3 V. Moreover, the device features four high-side drivers to
supply LEDs and sensors. All outputs are short-circuit (SC) protected and implement open-load diagnosis. The
ST standard SPI interface allows control and diagnosis of the device and enables generic software development.

Applications
• Body control modules (BCM)
• Gateway applications
• Telematic control unit
• Passive keyless entry and start modules
• Control panel
• Heating, ventilation and air conditioning (HVAC)
• Seat control modules
• Sunroof modules
• Tailgate modules
• Door modules
• Light control modules
• Gear shifters
• Steering column
• Fuel pump