STMicroelectronics AEK-MOT-3P9908M

Overview

AEK-MOT-3P9908M 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 integrated Hall sensor and encoder interfaces, CAN bus remote command, and preloaded firmware for rapid validation of motor control algorithms in 12 V/24 V/48 V battery systems.

For engineers reviewing the AEK-MOT-3P9908M datasheet, AEK-MOT-3P9908M pinout, AEK-MOT-3P9908M application, or AEK-MOT-3P9908M equivalent, this board delivers a production-ready reference platform for automotive chassis-level BLDC motor control - supporting SPI-configurable gate driving, independent PWM per FET, real-time diagnostics, and CAN-driven firmware updates without host PC dependency.

Technical Context

The board implements a closed-loop 3-phase BLDC control architecture where the SPC560P50L5 executes field-oriented control (FOC) or six-step commutation via FlexPWM peripherals, while the L9908 drives six N-channel MOSFETs (STD105N10F7AG) with independent INH/INL inputs, current sensing (IS1+/IS1−, IS2+/IS2−, IS3+/IS3−), and fault flag reporting (FS_FLAG). Motor feedback is acquired through three Hall sensors (HALL_1–HALL_3) and quadrature encoder inputs (ENC_CHA/ENC_CHB).

System-level connectivity includes a galvanically isolated MCP2562FD CAN transceiver (5 V tolerant, FD-capable), USB-JTAG debug interface via FT2232H, and dual 5 V/3.3 V power rails derived from L7987L and LD1117S33TR regulators. Firmware is preloaded and updatable over CAN using STSW-AUTODEVKIT's "SPC58ECxx_RLA_MainEcuForBLDCControl-L9908" demo application.

Key Specifications

Availability

AEK-MOT-3P9908M is available at Aetrix Electronics and suitable for automotive BLDC motor control validation, ECU prototyping, and functional safety development requiring stable component supply, traceable sourcing, and long-term lifecycle continuity.

Supply support for AEK-MOT-3P9908M 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 broad AEC-Q100 qualification coverage and ISO 26262 process compliance.

This board belongs to ST's AutoDevKit ecosystem - a family of automotive-qualified evaluation platforms designed to accelerate development of ASIL-B/C-compliant motor control, chassis, and safety-critical ECUs using SPC5 MCUs and companion analog/power ICs.

FAQ

Does AEK-MOT-3P9908M support encoder-based position control?

Yes - it provides dedicated differential encoder inputs (ENC_CHA/ENC_CHB) routed to eTIMER0_ETC hardware timers on the SPC560P50L5, enabling quadrature decoding and precise rotor position tracking. External pull-up resistors and RC filtering (C103/R76, C104/R77) are included for noise immunity in automotive environments.

Can the onboard BLDC motor be replaced with a custom motor?

Yes - the board supports external 3-phase BLDC motors via P2 terminal block (OUT1/OUT2/OUT3). Motor parameters (voltage, current, pole pairs) and sensing type (Hall vs. encoder) must be updated in the SPC5Studio Motor Control Component configuration, including Drive Management > Speed Sensor Selection and Motor Settings sections.

What software tools are required to modify the motor control firmware?

You need SPC5Studio IDE with the SPC5-MCTK-LIB motor control plug-in installed. The preloaded demo "SPC560Pxx_RLA_AEK_MOT_3P99081_3Phase_Motor_Control_L9908_via_CAN" serves as the base project; customization occurs in the Motor Control Component GUI, not raw code editing.

Is CAN FD functionality enabled out-of-the-box?

Yes - the MCP2562FD-E_SN transceiver supports CAN FD up to 5 Mbps, and the SPC560P50L5's CAN0 peripheral is configured for FD operation in the default firmware. Bitrate switching and payload extension are handled by the STSW-AUTODEVKIT demo application without hardware modification.