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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Management - Specialized

STMicroelectronics SPSB0815-TR

Name: SPSB0815-TR
Brand: STMicroelectronics
SKU: SPSB0815-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SPSB0815-TR

Manufacturer:: STMicroelectronics

Category:: Power Management - Specialized

Package:: 32-TFQFN Exposed Pad

Datasheet:: SPSB0815-TR.pdf

Description:: LINEAR IC'S

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SPSB0815-TR from STMicroelectronics is an automotive power management IC integrating dual LDO regulators (V1 = 5 V / 250 mA, V2 = 5 V or 3.3 V tracker), four 0.14 A high-side drivers with open-load/overcurrent diagnosis, ISO 11898-2/2016 CAN-FD transceiver, and programmable window watchdog - all in a QFN32L Epad (5.0×5.0×1.0 mm) package. It serves as central power & communication hub in body control modules requiring ASIL-aware fail-safe operation.

For engineers reviewing the SPSB0815-TR datasheet, SPSB0815-TR pinout, SPSB0815-TR application, or SPSB0815-TR equivalent, key selection criteria include its AEC-Q100 qualification, dual-regulator tracking capability, integrated CAN-FD + LIN (ISO 17987-4), 15 µA standby current, and diagnostic-rich HS driver interface for automotive ECU power domain control.

Technical Context

The device implements two independent LDOs: V1 delivers fixed 5 V at up to 250 mA for MCU/CAN supply with overvoltage protection and thermal shutdown (TSD1 = 165–185 °C); V2 operates as either standalone 5 V/3.3 V LDO or precision tracker (±20 mV) of V1, configurable via SPI register CR2. Both regulators support ceramic output capacitors ≥1 µF and require no electrolytic capacitors.

Four HS drivers feature R_ON = 7 Ω, 1.25 A absolute max current, open-load detection, short-circuit protection, and dedicated current monitor (CM) output multiplexed per channel. The CAN-FD physical layer complies with ISO 11898-2/2016 and SAE J2284, includes local/bus failure diagnosis, and draws supply from VCANSUP (0.3–5.25 V), while LIN (on SPSB0815) meets ISO 17987-4/2016.

Key Specifications

Parameter	Value and Actual Design Meaning
V1 Output	Fixed 5 V, 250 mA continuous - powers MCU and internal CAN transceiver
V2 Configuration	5 V or 3.3 V selectable via SPI; supports tracking mode (±20 mV) of V1
HS Drivers	4×, R_ON = 7 Ω, 0.14 A typical load current, with open-load and SC diagnosis
CAN-FD Compliance	ISO 11898-2/2016 & SAE J2284 - enables 2+ Mbps data rates with bus failure reporting
Standby Current	15 µA typical in VBAT_standby - enables ultra-low-power always-on wake-up capability
Operating Temp	−40 °C to +125 °C ambient - qualified for under-hood and cabin ECU deployment
ESD Protection	HBM ±8 kV on LIN/CAN pins, ±4 kV on HS outputs - exceeds AEC-Q100-002 Class 3B

Pinout & Package

SPSB0815-TR uses a thermally enhanced QFN32L Epad package (5.0 × 5.0 × 1.0 mm, exposed thermal pad). The Epad must be soldered to PCB ground plane for thermal and electrical integrity. Pin 1 is located at top-left corner adjacent to WU1 marking.

Pin	Circuit Role	Design Meaning
WU1	Wake-up input 1	Static or cyclic monitoring of external contacts; supports programmable sense timing
DIR/WU2	Dual-function pin	Configurable as direct HS drive enable or second wake-up input with DIR functionality
V2	Tracker regulator output	5 V or 3.3 V supply for peripherals/CAN; protected against reverse bias and short-to-battery
OUT1–OUT4	High-side driver outputs	Each drives LEDs/sensors/contacts; includes current monitor (CM), open-load, and SC protection
CAN_H / CAN_L	CAN FD differential bus I/O	Compliant physical layer interface with local/bus failure diagnosis and ±40 V fault tolerance
LIN	LIN bus I/O	ISO 17987-4/2016 compliant transceiver for low-speed vehicle network communication
VSREG	Main supply input	Feeds internal regulators, LIN/CAN, wake-up circuitry; requires ceramic + electrolytic capacitor
VS	Power stage supply	Supplies OUT1–OUT4; external reverse battery protection required
DIAGN	Failsafe error signal	Active-low open-drain output indicating latched faults (thermal, regulator, watchdog, etc.)
NINT	Interrupt notification	Push-pull output signaling errors, warnings, or wake-up events to host MCU

Key Features

Feature	Design Value
AEC-Q100 Grade 0 qualification	Validated for −40 °C to +150 °C junction operation - suitable for engine bay and safety-critical zones
Programmable reset generator	Configurable POR and undervoltage reset thresholds with hysteresis - ensures deterministic MCU boot
ST-SPI interface (32-bit)	Standardized register map enabling reusable firmware across ST automotive PMIC portfolio
Thermal cluster monitoring	Integrated warning (140–160 °C) and dual-stage shutdown (165–185 °C / 175–195 °C) with hysteresis
Fail-safe DIAGN output	Dedicated active-low pin asserting on any critical fault - enables immediate system-level response without SPI polling

Applications

Body Control Module (BCM)

Telematic Control Unit (TCU)

Use Scenario: Centralized power distribution and diagnostics for door locks, interior lighting, and mirror controls.

IC Role / Device Role / Timing Role: Dual-regulator power source + HS driver interface + CAN-FD gateway - manages local loads and communicates with central domain controller.

Use Value: Eliminates discrete LDOs and transceivers; reduces BOM count by 7+ components while enabling real-time open-load detection on all 4 HS channels.

Use Scenario: Power and communication management for cellular/V2X modem, GNSS receiver, and OTA update subsystems.

IC Role / Device Role / Timing Role: Supplies 5 V to modem SoC (V1) and 3.3 V tracker to GNSS sensor (V2); routes CAN-FD messages between modem and vehicle backbone.

Use Value: Enables <15 µA deep-sleep state during idle periods while maintaining CAN-FD listen-only mode for remote wake-up - extends battery life in parked scenarios.

Passive Keyless Entry (PKE)

Seat Control Module

Use Scenario: Low-power wake-up and antenna driver control for RF receive/transmit functions in smart fob detection.

IC Role / Device Role / Timing Role: Provides regulated 3.3 V (V2) to RF transceiver; uses WU1/WU2 for capacitive or inductive antenna sensing; triggers periodic wake-up timer.

Use Value: Replaces discrete wake-up controller + LDO + GPIO expander; achieves sub-20 µA system sleep current with programmable cyclic sense intervals.

Use Scenario: Driving seat position motors, heating elements, and occupancy sensors in multi-zone electric seats.

IC Role / Device Role / Timing Role: Four HS drivers directly control motor H-bridges (via external FETs) and heater resistors; CM pin monitors each channel for stall/fault detection.

Use Value: Enables closed-loop current feedback without external amplifiers; supports ASIL-B diagnostic coverage via integrated open-load and overcurrent flags.

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive power management applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SPSB0813-TR	V1 = 3.3 V (not 5 V); LIN transceiver included; V2 = 3.3 V only; no CAN-FD	Targeted for 3.3 V MCU domains without CAN-FD requirement; lower V1 current (200 mA vs 250 mA)	Select when system MCU runs at 3.3 V and CAN-FD is unnecessary - reduces cost and simplifies layout
TLE9261-2QX	Single 5 V LDO (300 mA); no V2 tracker; 4 HS drivers (0.5 A); no integrated LIN/CAN; separate transceiver required	Requires external CAN/LIN PHY; lacks V2 tracking and programmable watchdog; higher HS current but no CM output	Choose for cost-sensitive designs where external transceivers are already present and V2 tracking is not needed

Compared with SPSB0813-TR, SPSB0815-TR provides higher V1 current and integrated CAN-FD - critical for modern gateways. Versus TLE9261-2QX, it consolidates communication PHYs and adds V2 tracking, reducing board area and software complexity at the expense of slightly higher quiescent current.

Availability

SPSB0815-TR is available at Aetrix Electronics and suitable for body control modules, telematic units, passive keyless entry systems, and seat control modules requiring stable component supply across automotive production lifecycles.

Supply support for SPSB0815-TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade analog devices for industrial, automotive, and consumer markets.

The SPSB081 product line delivers integrated power management and communication interfaces for automotive ECUs - engineered to simplify ASIL-aware system design while meeting stringent AEC-Q100 and ISO 26262 functional safety requirements.

FAQ

What is the maximum allowable voltage on the VS pin?

The VS pin supports DC supply voltages from −0.3 V to 28 V under normal operation, and up to 40 V for transient load-dump conditions lasting less than 400 ms. External reverse-battery protection is mandatory, and a ceramic capacitor must be placed as close as possible to PGND to ensure stability during high-current HS driver switching.

How does the V2 tracker mode function in SPSB0815-TR?

In tracker mode (V2_TKR = 1), V2 precisely follows V1's output voltage within ±20 mV tolerance, enabling matched rail sequencing for sensitive peripherals. This mode is only enabled when both V1 and V2 are configured for 5 V output (Configuration #4). V2 remains disabled if V1 is below 4.5 V or if V2_TKR is cleared.

Can the LIN transceiver operate independently of the CAN-FD interface?

Yes - the LIN transceiver (ISO 17987-4/2016 compliant) operates independently using its own LIN pin and internal biasing. It remains functional even when CAN is disabled or in fault state. However, both share the same VSREG supply and thermal domain, so simultaneous full-load operation requires thermal derating per DS14048 Section 2.3.

What diagnostic capabilities are available for the high-side drivers?

All four HS drivers support real-time current monitoring via the multiplexed CM pin, open-load detection (via voltage threshold comparison), and short-circuit protection with automatic shutdown. Fault status is latched in SR2 register bits (OUT1SC–OUT4SC) and signaled on DIAGN and NINT pins - enabling both polled and interrupt-driven diagnostics without external components.

SPSB0815-TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 32-TFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: -

Current - Supply:: 10mA

Voltage - Supply:: 40V

Operating Temperature:: -40°C ~ 175°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 32-VFQFPN (5x5)

SPSB0815-TR FAQ

1.How can I place an order for SPSB0815-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for SPSB0815-TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SPSB0815-TR reliable?

The price and inventory of SPSB0815-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPSB0815-TR is usually 5 days.

3.What payment methods are accepted for SPSB0815-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPSB0815-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SPSB0815-TR?

SPSB0815-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SPSB0815-TR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SPSB0815-TR?

For technical support, including SPSB0815-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPSB0815-TR requirements.

6.How does Aetrix verify that SPSB0815-TR is sourced from the original manufacturer or authorized distributors?

All SPSB0815-TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SPSB0815-TR meets industry standards.

7.What is the process for return or replacement of SPSB0815-TR?

All SPSB0815-TR units undergo pre-shipment inspection (PSI). If there is an issue with SPSB0815-TR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SPSB0815-TR part is unused and in its original packaging.

Return procedure for SPSB0815-TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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