Product overview
Description
STPM098C is a dual-loop digital multi-phase buck controller with built-in NVM and PMBus™ interface for automotive applications.
The product finds application in the power management of loads that require high power, such as cores of processors and memories. It controls up to 8 external drivers+MOS and, with its two loops, allows to supply up to two different voltages.
An advanced control loop architecture based on COT (constant on-time) scheme provides fast transient responses and high efficiency. The device also provides phase interleaving and dynamic phase add/drop for efficiency enhancement for light load range.
STPM098C supports a ver.1.2 compliant PMBus™ communication with 8 possible interface address values for reporting the telemetry of voltage, current, power, temperature and fault signaling.
The device programmable parameters can be configured through the PMBus™ interface and stored in an on-chip NVM minimizing external components.
STPM098C additionally provides an extensive monitoring unit system and fault protection including independent UV/OV on output voltage, loop feedback disconnection, phase current unbalancing and dual-threshold overcurrent for both positive and negative phase currents.
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All features
- AEC-Q100 qualified
- Phase assignment between two loops: 8+0 to 4+4
- Output voltage range: 0.5 V to 2 V
- Switching frequency range: 200 kHz to 1.5 MHz
- Programmable dynamic phase shedding operation for light loads and active diode emulation for very light loads
- High-performance digital control Loop
- Embedded CPU ARM Cortex™ M0+ at 40 MHz
- Embedded NVM (nonvolatile memory)
- PMBus™ rev 1.2 (max freq. 400 kHz)
- Full ISO26262 compliant, ASIL-D systems ready
- Protection and diagnostic
- PMBus™ readable input telemetry (voltage, current, power)
- PMBus™ configurable overcurrent, undervoltage and over-power diagnostics and protection on input metrics
- PMBus™ readable output telemetry (voltage, current, temperature) for each loop
- PMBus™ configurable under/overcurrent, under/overvoltage diagnostics and protection on output metrics for each loop
- PMBus™ configurable thermal warning and thermal shutdown diagnostics and protection on the output stage for each loop
- PMBus™ readable single-phase current telemetry
- PMBus™ configurable single-phase overcurrent diagnostics and protection
- PMBus™ configurable general-purpose UV/OV diagnostic thorough pin AUX_SENSE
- Feedback loop disconnection diagnostics
- Internal overtemperature diagnostics and protection
- PMBus™ readable Tj measurement
- Ground loss diagnostics
- System clock monitoring
- Power supply pins VCC, VREF1, VREF2 overvoltage and undervoltage diagnostics
- Fault status flag output through SM_ALERT, FAULT, VRRDY1, VRRDY2 pins
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STPM098C
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STPM098C-TR | Active | TFQFN 7X7X0.9 48+4 WETT. 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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STPM098C-TR | | | distributors No availability of distributors reported, please contact our sales office |
STPM098C-TR 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