Product overview
Description
The SPSB100 is a fully integrated automotive power management system IC, especially designed for highly integrated application processors (for example, Stellar G and P MCU families), offering low power mode and high current capability: the device comes with enhanced system power supply functionality.
It combines a 3-switch mode power supply together with two integrated linear voltage regulators. The device integrates a further 2 wake-up inputs and advanced fail-safe functionalities.
The boost controller is intended only to sustain cold cranking pulses, start stop and weak battery conditions for a transitory time.
Different combinations enable to supply the system microcontroller, external peripheral loads and sensors in several and adjustable voltage and current ranges. SPSB100 is delivered out of ST factory with default values (rails, power-up and down sequences) stored in USER-NVM space as reported in system supply configuration 1 for SPSB100B and in system supply configuration 2 for SPSB100P, but can be also reprogrammed by customers based on different application needs.
The ST standard SPI interface allows control and diagnosis of the device and enables generic software development.
The device offers a set of features to support applications that need to fulfill functional safety requirements as defined by Automotive Safety Integrity Level (ASIL).
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All features
- AEC-Q100 qualified
- 2 configurable (6.5 V, 5 V, 3.3 V) BUCK converters and typ peak switching current limit of 3.0 A at 2.4 MHz or 400 kHz
- 1 configurable (3.3 V, 1.25 V, 1.2 V, 1.1 V, 0.98 V) BUCK converter and typ peak switching current limit up to 6.0 A at 2.4 MHz, with fine-tuning configurability around 0.98 V (0.95 V to 1.01 V)
- Overcurrent detection and limitation for all BUCKs
- Integrated soft start on BUCK stages
- Boost controller 8-9.5 V and typ peak switching current limit of 4.2 A at 400 kHz, for sustaining low battery condition occurring for a transitory time and deep cranking pulse (external power components can be optionally populated)
- One 5 V voltage regulator (120 mA, 2% acc.)
- One configurable (5 V or 3.3 V) low drop voltage tracker of all regulators (10 mA, ±10 mV)
- One high side driver for contact monitoring (RON = 55 Ω) with open-load and overcurrent diagnosis
- Dedicated interrupt pin for failure communication
- Device operates in low power mode
- Very low quiescent current in DEEP-SLEEP state
- MCU reset generator
- Configurable window watchdog with extended long open window up to 9 s and enable/disable function through NVM bit
- Device contains temperature warning and protection
- Thermal clusters
- A/D conversion of supply voltages and internal temperature sensors
- STMicroelectronics standard serial peripheral interface (32 Bit/ST_SPI) including 4-bit CRC
- 1 fail-safe output
- 1 input pin supporting static and dynamic error signal reporting
- Programmable periodic system wake-up feature
- Documentation available for customers that need support when dealing with ASIL requirements as per ISO26262
- VFQFN56+4L 8x8x0.9 with wettable flank, 0.8 mm package
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Management Design Center
Thermal-electrical Simulators for Components
Signal Conditioning Design Tool
NFC/RFID Calculators
Power Supply Design Tool
LED Lighting Design Tool
Digital Power Workbench
Power Tree Designer
AC Switches Simulator
Rectifier Diodes Simulator
STPOWER Studio
Twister Sim
TVS Simulator
Estimate
Active Filters
Comparators
Low side Current Sensing
High side Current Sensing
NFC Inductance
UHF Link Budget
NFC Tuning Circuit
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STMicroelectronics - SPSB100
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| SPSB100BTR | Active | QFN 8X8 56+4L WETTABLE FLANKS | Automotive Safety | Ecopack2 | |
| SPSB100PTR | Active | QFN 8X8 56+4L WETTABLE FLANKS | Automotive Safety | Ecopack2 | |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SPSB100PTR | | | distributors No availability of distributors reported, please contact our sales office | ||||||||||
| SPSB100BTR | | | distributors No availability of distributors reported, please contact our sales office |
SPSB100PTR Active
SPSB100BTR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors