STMicroelectronics STEVAL-IFN004V1

Overview

STEVAL-IFN004V1 from STMicroelectronics is a four-layer BLDC motor control demonstration board implementing six-step scalar control using the STM8S105 8-bit microcontroller and L6230 three-phase DMOS driver, supporting 8–48 V DC input (≤35 W), sensorless or Hall-effect commutation, and single-shunt current sensing for industrial fan, pump, and appliance motor drives.

For engineers reviewing the STEVAL-IFN004V1 datasheet, STEVAL-IFN004V1 pinout, STEVAL-IFN004V1 application, or STEVAL-IFN004V1 equivalent, this board serves as a complete evaluation platform for STM8S-based BLDC control firmware development, BEMF detection validation, and thermal-performance trade-off analysis in compact motor drive designs.

Technical Context

The board integrates the STM8S105K4T6 MCU (128 KB Flash, 2 KB SRAM, SWD debug interface) with the L6230 QFN-packaged three-phase gate driver (2.8 A peak output, non-dissipative overcurrent protection, cycle-by-cycle current regulation via internal comparator, thermal shutdown, UVLO). It implements dynamic BEMF detection with hardware-selectable method switching.

Hardware features include SPI interface for host communication, dedicated debug connector, Hall sensor inputs, and configurable start/stop control logic. The single-shunt resistor topology enables cost-effective current measurement while maintaining phase current reconstruction capability under six-step commutation.

Key Specifications

Availability

STEVAL-IFN004V1 is available at Aetrix Electronics and suitable for industrial fans, HVAC blowers, and small-appliance motor control applications requiring stable component supply and rapid firmware prototyping capability.

Supply support for STEVAL-IFN004V1 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog/mixed-signal devices for industrial, automotive, and consumer markets.

This board belongs to ST's STEVAL (ST Evaluation) series, developed specifically to accelerate motor control algorithm validation, hardware-software co-design, and time-to-market for BLDC applications using STM8 and STSPIN/L62xx driver families.

FAQ

Does STEVAL-IFN004V1 support closed-loop speed control?

Yes - the board supports closed-loop speed control through firmware implementation using the STM8S105's built-in timers and ADC. Speed feedback is derived from Hall sensors or BEMF zero-crossing detection, and duty cycle adjustment is performed in real time via PWM outputs driving the L6230.

What software libraries are compatible with this board?

The board is validated with ST's STM8Sxxx Three-Phase BLDC Motor Control Software Library (UM1052), which provides six-step commutation routines, BEMF detection algorithms, Hall decoding, and startup sequence handling - all optimized for the STM8S105's peripheral set and memory footprint.

Can the L6230 driver be replaced with another ST motor driver IC on this board?

No - the L6230 is soldered in a 32-pin QFN package with layout-specific thermal pads and gate-drive routing. Its pinout, current rating, and protection features are tightly integrated into the board's schematic and layout; replacement requires full redesign of the power stage and gate-drive network.

Is STEVAL-IFN004V1 RoHS compliant and lead-free?

Yes - the board complies with RoHS Directive 2011/65/EU and uses lead-free solder and components throughout. All materials declarations and substance compliance data are documented in ST's official product change notices and environmental reports for Doc ID 022372.