
NTMicroDrive
The complete package for Micronas Embedded Motor Controller
NTMicroDrive Safety Software
ASIL A Ready Software Stack for Micronas Embedded Motor Controllers
NTMicroDrive permits the direct control of brush-type (DC), stepper, or brushless motors (BLDC) with the use of Micronas HVC 4223F. NTMicroDrive is a production-ready and highly flexible, customizable firmware with sophisticated communications, monitoring and power management functions as well as a configuration software tool. The software stack allows complex motor control algorithms such as Space Vector Modulation (SVM) for permanent magnet synchronous motors (PMSM), six-step commutation with sensor feedback or without sensor control, as well as various stepper configurations.
Customer benefits
- Certification ready for ISO 26262 ASIL A
- Short time to market
- Ready to use Software
- Usable for the different types of motors, only with parameter change
- Only 50% needed for NTMicroDrive functionality, 50% free for Customer Application
- MISRA Compliant
- PCLint tested
Typical applications
Automotive
- Headlight height adjustment
- Electric window lift
- Electric seat adjuster
- Electric mirror adjustment
- Control over climate and outlet
Industrial
- Safety interlock
- Material handling
- Tool handling
- Robotics
Construction
- Safety interlock
- Holding bracket
- Automatic orientation device
- Simple power tools
System overview

Key features – Stepper Motors
Speed Control
Current Control
Direction Control
Half, Full Stepping
Microstepping in steps 2, 4, 8, 16, 32
Current limitation
Sleep & Retention mode
LIN communication
Diagnostics
Stall Detection
MOUT overcurrent shutdown
BVDD Over-/Under-voltage
TJ max over-temperature
(limit adjustable by PC software)
Window and Digital Watchdogs
Error identification:
- Motor phase open
- Motor phase short to GND
- Motor phase short to VBAT
Key features – BLDC Motors
Speed Control
Current Control
Direction Control
Current limitation
Sleep & Retention mode
LIN communication
Diagnostics
MOUT overcurrent shutdown
BVDD Over-/Under-voltage
TJ max over-temperature
(limit adjustable by PC software)
Window and Digital Watchdogs
Error identification:
- Motor phase open
- Motor phase short to GND
- Motor phase short to VBAT
NTMicroDrive Enterprise-Board
HVC 4223F based Embedded Motor Control
The NTMicroDrive Enterprise-Board is a development and production ready platform that permits the direct control of brush-type, stepper or brushless motors (up to 25 watt). The motor control is empowered by the TDK Micronas HVC 4223F Motor Controller. Next to the motor driver part is an USB/LIN-Adapter for rapid prototyping. Both parts can be separated and used independently.
For commercial applications the NTMicroDrive Software Stack together with the HVC 4223F Motor controller provides a ready-to-use solution.

Customer Benefits
- The NTMicroDrive Enterprise-Board provides a complete, high-quality design environment for motor applications.
- Usable for the different types of motors, only with parameter change.
- The development kit helps to simplify the design process and reduce time to market.
Typical applications
Control of Stepper, brush-type and brushless (BLDC) motors up to 25 watt, e. g.
- Grill shutter (BLDC)
- Fan flap / HVAC (Stepper)
- Adaptive front light (Stepper)
- Glove compartment (BLDC)
- Fans (BLDC)
- Small robotic (BLDC, Stepper)
- Medical/orthopedics assistance (BLDC/Stepper)
- Smart Home and Living
System overview

Features Motor Driver
- Motor Driver: Micronas HVC 4223F: ARM Cortex-M3, Integrated bridges for motors with up to 25 W, 2k RAM, 32k Flash
- Configuration options for stepper, brush-type and brushless (BLDC) motors
- LIN Bus
- CAN Bus
- Supply voltage from 8 V to 18 V
- Input protection circuit
- Status LED
- 3D position sensor Micronas HAL39xy
Optional:
- JTAG Connector
- Extension Connector for Gate Driver Board to control motors with more power
Features LIN Adapter
- USB Adapter for LIN Bus
- Microcontroller
- LIN Transceiver
- Supply Voltage from 8 V to 18 V
Available Software:
- For the LIN Microcontroller: USB to LIN bridge
- For PC: Python Library to be used with the LIN Adapter QT based graphical Python UI to control BLDC and stepper motors
NTMicroDrive Development Kit
The ready-to-use Demobox including Enterprise-Board, Stepper-Motor and Demo-Software
The NTMicroDrive Enterprise-Board is a development and production ready platform that permits the direct control of brush-type, stepper or brushless motors (up to 25 watt). The motor control is empowered by the TDK Micronas HVC 4223F Motor Controller. Next to the motor driver part is an USB/LIN-Adapter for rapid prototyping. Both parts can be separated and used independently.
For commercial applications the NTMicroDrive Software Stack together with the HVC 4223F Motor controller provides a ready-to-use solution.
The NTMicroDrive Development Kit includes the necessary motor controller hardware (NTMicroDrive Enterprise-Board), stepper motor, NTMicroDrive Demo Software for motor control and a PC GUI for fast evaluation and prototyping.
The ready-to-use Demobox
- NTMicroDrive Enterprise-Board (HVC 4223F based)
- Stepper-Motor (Minebea NEMA 17)
- NTMicroDrive Demo-Software
- USB-Cable
- Quick-Start-Guide/Userguide
System requirements
- PC with Windows 10 and USB Port
- PowerSupply 12V/3A