The SBC from NXP has a very wide range of applications in the open market.The FS26xx series is one of the more commonly used models.
Main features:1. Operating voltage range:Maximum input voltage of 40V (suitable for 12V systems)Supports a minimum battery voltage of 3.2V under BVST conditionsSupports a minimum battery voltage of 6V without VBST2. Power Supplies:VPRE: Synchronous buck converter with integrated FET. Configurable output voltage and switching frequency, output DC current capabilityup to 1.5A, PFM mode for low power standby operation.
VCORE: Synchronous buck converter with integrated FET. VCORE is dedicated to microcontroller core supply.Output DC current up to 0.8A or 1.65A (depending on part number), output voltage range set
from 0.8V to 3.35V.
VBST: Asynchronous boost controller with external low-side switch, diode, and current sensing resistor. VBST can be configured as a front-end power supply to withstand low voltage startup curves or as a backend power supply with configurable output voltage and scalable output DC current capability.
LDO1: LDO regulator supporting microcontroller I/O, output voltage selectable between3.3V and 5.0V with a current capability of up to 400mA.
LDO2: LDO regulator for supporting system peripherals, output voltage selectable between 3.3V and 5.0V with a current capability of up to 400mA.
VREF: High precision reference voltage,accuracy of 0.75%, suitable for external ADC reference and internal ADC reference tracking.
TRK1 and TRK2: Voltage tracking regulators, output voltage LDO reference selectable between VREF, LDO2, or internal. Supports high voltage protection for ECU non-automotive operation. Each tracker has a current capacity of up to 150mA.
3. System support features:
Two wake inputs with high voltage support to enhance system robustness
Two programmable GPIOs with wake function or HS/LS drivers
Programmable long-duration timer (LDT) for system shutdown and wake control
Monitoring system voltage (including battery voltage monitoring) via an analog multiplexer
Optional wake sources: wake/GPIO pins, LDT, or SPI activity
Device control via a 32-bit SPI interface with cyclic redundancy check (CRC)
4. Functional safety support:
Scalable product portfolio from Automotive Safety Integrity Level (ASIL) B to D
Independent monitoring circuits, dedicated interface for microcontroller monitoring, simple or challenger watchdog functions
Analog built-in self-test (ABIST1) and logic built-in self-test (LBIST) at startup
On-demand analog built-in self-test (ABIST2)
Safe outputs (RSTB, FS0B, FS1B) with potential fault detection mechanisms
Product part number Family
Typical application diagram