STMicroelectronics AEK-MOT-3P99081

Overview

AEK-MOT-3P99081 from STMicroelectronics is an automotive-grade evaluation board built around the SPC560P50L5 32-bit Power Architecture MCU and L9908 high-voltage gate driver, enabling full 3-phase BLDC motor control with Hall sensor and encoder feedback, 12–48 V battery bus support, SPI-configurable FET driving, and CAN-based remote firmware control.

For engineers reviewing the AEK-MOT-3P99081 datasheet, AEK-MOT-3P99081 pinout, AEK-MOT-3P99081 application, or AEK-MOT-3P99081 equivalent, this board serves as a validated reference for automotive chassis-level brushless motor control development-especially where Hall-based commutation, real-time PWM timing, fault diagnostics, and CAN-driven ECU integration are required.

Technical Context

The board integrates the SPC560P50L5 microcontroller - featuring eTIMER modules for precise motor timing, FlexPWM units for independent high-resolution phase control, and SafetyPort/CAN/LIN interfaces - tightly coupled to the L9908 gate driver, which provides six independent high-side/low-side outputs with programmable dead-time, overcurrent protection, and SPI-accessible diagnostics.

Motor sensing is implemented via three dedicated Hall sensor inputs (HALL_1–HALL_3) and two quadrature encoder channels (ENC_CHA/ENC_CHB), while power delivery supports 12 V, 24 V, and 48 V battery systems through integrated DC-DC converters (L7987L, L4995RJ, L4995A) and robust FETs (STD105N10F7AG).

Key Specifications

Availability

AEK-MOT-3P99081 is available at Aetrix Electronics and suitable for automotive BLDC motor evaluation, chassis actuator prototyping, and ECU validation requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for AEK-MOT-3P99081 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, specializing in automotive, industrial, and power management solutions with strong functional safety and AEC-Q100 qualification expertise.

This board belongs to ST's AutoDevKit ecosystem - designed specifically to accelerate development of ASIL-compliant motor control ECUs using SPC5 MCUs and companion analog/power ICs for chassis, braking, and steering applications.

FAQ

Does AEK-MOT-3P99081 support sensorless BLDC control?

No - the board is hardware-optimized for Hall-effect-based commutation, with three dedicated Hall inputs (HALL_1–HALL_3) and no onboard back-EMF sensing circuitry or current-shunt amplifiers required for sensorless operation. The SPC5-MCTK-LIB configuration menu allows Hall-only or encoder-only selection, but no sensorless mode is implemented in the default firmware or schematic.

What motor voltage and current ratings can it drive?

The board drives 3-phase BLDC motors up to 48 V bus voltage and ~10 A continuous phase current (limited by STD105N10F7AG FETs and PCB thermal design). Peak current capability is ~30 A short-term, constrained by L9908's 2 A peak gate drive and external FET SOA - actual rating depends on heatsinking, switching frequency, and duty cycle.

Is CAN interface compatible with standard ISO 11898-2 physical layer?

Yes - the MCP2562FD-E transceiver implements ISO 11898-2 compliant CAN FD signaling with 5 V tolerant logic, common-mode range ±36 V, and integrated slope control. It connects directly to U16's CAN0_TXD/RXD pins and supports bit rates up to 5 Mbps in FD mode, fully interoperable with standard automotive CAN networks.

Can I replace the SPC560P50L5 with another SPC5 MCU?

No - the board is mechanically and electrically tailored for the SPC560P50L5 (144-pin LQFP), including pin-mapped eTIMER/FlexPWM peripherals, dedicated CAN/LIN routing, and power sequencing tied to its VDD_HV/VDD_LV domains. Other SPC5 devices (e.g., SPC58EC) have different pinouts, voltage domains, and peripheral mappings and are not drop-in compatible.