AEK-MOT-4DCMH94 Evaluation Board

Introduction

The STMicroelectronics AEK-MOT-4DCMH94 is a motor driver evaluation board designed to demonstrate brushed DC motor control using L99MH94 half-bridge pre-drivers. It offers a flexible platform for evaluating multi-motor automotive body-control and convenience applications.

Part Description

The AEK-MOT-4DCMH94 Evaluation Board can be configured as either four independent half-bridge outputs or two full H-bridge motor channels. This flexibility allows designers to assess different brushed DC motor drive arrangements on one platform.

Built around STMicroelectronics L99MH94 half-bridge pre-drivers, the board supports motor output current configurations of up to 15 A or 30 A, depending on the selected arrangement and external power-stage implementation. An SPI interface provides a digital communication path for configuration, diagnostics, and control.

The board is intended primarily for automotive-oriented motor-control development, where compact, reliable DC motor actuation is required for functions such as doors, windows, seats, pumps, latches, and flap controls.

Applications

• Brushed DC motor evaluation
• Automotive body-control motor systems
• Power window motor control
• Seat adjustment systems
• Door lock and latch actuators
• Sunroof and roof-module motors
• Mirror adjustment and folding motors
• HVAC flap and blower actuator control
• Small automotive pump control
• General-purpose bidirectional DC motor control

Industries

• Automotive manufacturing
• Automotive electronics
• Electric vehicle subsystem development
• Transportation equipment
• Industrial automation
• Building automation
• Smart appliance development
• Motor-control research and prototyping
• Embedded systems engineering

Usage Ideas

1. Power Window Controller Prototype
   Configure one H-bridge channel to drive a bidirectional window-lift motor while using SPI communication for control and diagnostic monitoring.

2. Multi-Actuator Door Module
   Use the four half-bridge channels to evaluate separate door-lock, latch, mirror-folding, and mirror-adjustment actuators in an automotive door-control design.

3. Dual Motor Seat Adjustment System
   Configure the board as two H-bridges to test independent forward and reverse control of seat-position and seat-recline motors.

Conclusion

The STMicroelectronics AEK-MOT-4DCMH94 Evaluation Board is a versatile development platform for brushed DC motor applications. Its configurable quad half-bridge or dual H-bridge architecture, SPI interface, and support for high-current motor outputs make it well suited for evaluating automotive body-control, comfort, and convenience motor systems.