STMicroelectronics AEK-MOT-2DC70S1

Overview

AEK-MOT-2DC70S1 from STMicroelectronics is an automotive-grade evaluation board integrating two VNH7070BAS H-bridge drivers (15 A each), one VN7050AJ high-side driver (85 A), one VN7E010AJ high-side driver (25 A), and three independent encoder interfaces - enabling control of up to three DC motors in compact two-wheel or multi-actuator systems.

For engineers reviewing the AEK-MOT-2DC70S1 datasheet, AEK-MOT-2DC70S1 pinout, AEK-MOT-2DC70S1 application, or AEK-MOT-2DC70S1 equivalent, this board supports parallel motor driving, bi-directional H-bridge control, unidirectional high-current actuator driving, and real-time current sensing with MultiSense analog feedback - all within a 65 mm × 83 mm RoHS-compliant AutoDevKit platform.

Technical Context

The board implements dual full H-bridge motor drivers (VNH7070BAS) for bidirectional control of two DC motors, with PWM-based speed regulation up to 20 kHz and integrated current sense multiplexing (CS pins). Each H-bridge supports independent IN_A/IN_B logic control, fault reporting via /FaultRST, and selectable current-sense output routing via SEL_0/SEL_1.

Two dedicated high-side drivers (VN7050AJ and VN7E010AJ) provide unidirectional drive capability for auxiliary loads - with analog MultiSense current monitoring (MSS pins), open-load detection via pull-up switches, and automotive-grade protection including overcurrent, overtemperature, and reverse-battery immunity.

Key Specifications

Availability

AEK-MOT-2DC70S1 is available at Aetrix Electronics and suitable for automotive motor control validation, two-wheel robotic platforms, industrial actuator test benches, and embedded motion subsystem development requiring stable component supply and rapid firmware integration.

Supply support for AEK-MOT-2DC70S1 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 specializing in automotive, industrial, and embedded solutions, with deep expertise in power management, motor control, and functional-safety-certified ICs.

AEK-MOT-2DC70S1 belongs to ST's AutoDevKit ecosystem - designed to accelerate development of ASIL-B-capable motor control applications using SPC5 microcontrollers and standardized plug-in software components.

FAQ

Does AEK-MOT-2DC70S1 support closed-loop PID control?

Yes - the board integrates three encoder inputs and analog current sense outputs compatible with SPC5-STUDIO's AutoDevKit PID driver. Users can configure Kp/Ki/Kd parameters via #DEFINE statements and implement real-time position/speed regulation without external hardware.

Can all three motors be driven simultaneously in bidirectional mode?

No - only two motors (MOTOR 1 and MOTOR 3) are connected to H-bridges and support full bidirectional control. MOTOR 5 is also H-bridge-driven but must be activated separately to avoid conflict; MOTOR 2 and MOTOR 4 are high-side-only and unidirectional.

What is the maximum supply voltage for the board?

The board accepts +12 V DC input (labeled +VIN), with all ICs rated for 4–28 V operating range and 40 V transient tolerance - meeting ISO 7637-2 pulse 5a requirements for automotive 12 V systems.

Is encoder signal conditioning included on-board?

Yes - each encoder channel (ENC-A_x/ENC-B_x) connects directly to internal pull-ups and filtering capacitors (100 pF), supporting standard quadrature encoders with 5 V logic levels and eliminating need for external line receivers or Schmitt triggers.