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Automotive Power Management IC with LIN and CAN-FD

Quantity $ per Unit Savings
1 - 9$4.130%
10 - 24$3.7010%
25 - 99$3.5015%
100 - 249$3.0426%
250 - 499$2.8830%
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Parameter NameParameter Value
Operating Voltage Min Volt6.0
Operating Voltage Max Volt28.0
Packing TypeTape And Reel
RoHs compliantEcopack2
Package NameQFN-32L WF

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.

Key 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 compliant (only for SPSB0815 and SPSB0813)
  • CAN-FD transceiver (ISO 11898-2/2016, SAE J2284 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 0.14 A (RON = 7 Ω) suitable to drive external LED modules with high input capacitance value or to also supply external contacts
  • Internal 10-bit PWM timer for each standalone 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