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STMicroelectronics AEK-POW-SPSB081 Evaluation Board

STMicroelectronics AEK-POW-SPSB081 Evaluation Board features various standby modes for minimal power consumption. The STMicroelectronics AEK-POW-SPSB081 has programmable local and remote wake-up capabilities. The board is built on the SPSB081 power management system IC, featuring a low-drop voltage regulator (V1) for the system microcontroller and another regulator (V2) for tracking V1 or supplying external loads like sensors. V1 maintains a fixed 5V rail with overvoltage detection, while V2 can operate as a voltage tracker for V1 or an independent regulator programmable via SPI with 5V or 3.3V.

Features

  • SPSB0815 power management IC is AEC-Q100 qualified
  • One 5V low drop voltage regulator (V1) for the microcontroller and peripheral supply, with a current regulation of 250mA maximum
  • One configurable via SPI low drop voltage regulator (V2) for 5V or 3.3V, also used as a tracker for V1, and with off-board protection, with a current limitation of 100mA maximum
  • Configurable window watchdog from microcontroller
  • Debug mode available with watchdog disablement
  • ISO 17987-4/2016 compliant LIN transceiver
  • ISO 11898-2/2016 and SAE J2284 compliant CAN-FD transceiver with local failure and bus failure diagnosis
  • WU1 wake-up pin with programmable cyclic sense functionality
  • 4 high-side drivers (0.14A, RON = 7 Ω) configurable in four different modes (OFF, ON, TIMED, and PWM) suitable to drive external LED modules or supply external contacts
  • DIR pin to drive HS outputs (OUT 1 to OUT 4) manually
  • Programmable periodic system wake-up feature
  • DIAGN output pin to notify system error conditions
  • Current monitoring for all internal high-side drivers
  • Open-load diagnosis for all outputs
  • V1 overvoltage detection and protection
  • Device temperature warning and protection

Block Diagram

Block Diagram - STMicroelectronics AEK-POW-SPSB081 Evaluation Board

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Publicado: 2023-12-05 | Actualizado: 2024-01-04