STMicroelectronics STEVAL-ILL059V1

Overview

STEVAL-ILL059V1 from STMicroelectronics is an automotive-grade evaluation board for high-brightness LED array driving and diagnostics, built around the STAP16DPS05 16-bit constant-current LED sink driver and STM8A microcontroller. It supports stand-alone demo patterns (rolling text, wave effect), GUI-controlled frame programming, open/short-circuit error detection with 0.5 s / 1 s loop timing, and operates from a 4.5 V input via A5974D DC-DC converter.

For engineers reviewing the STEVAL-ILL059V1 datasheet, STEVAL-ILL059V1 pinout, STEVAL-ILL059V1 application, or STEVAL-ILL059V1 equivalent, this board serves as a validated reference for automotive LED lighting control, diagnostic implementation, SPI-based driver configuration, and real-time fault simulation using configurable jumpers and on-board potentiometer.

Technical Context

The board implements a dual-layer control architecture: the STM8A MCU handles pattern generation, SPI communication, and GUI interface logic, while the STAP16DPS05 provides 16-channel, 50 mA per channel constant-current sinking with integrated open/short detection. All 16 outputs are independently controllable via 16-bit PWM registers.

Diagnostic functionality includes hardware-level fault sensing on each channel, with error status reported via SPI to the MCU and visualized in the GUI. The A5974D buck converter delivers stable 4.5 V rail for logic and driver sections, meeting automotive supply requirements under load transients.

Key Specifications

Availability

STEVAL-ILL059V1 is available at Aetrix Electronics and suitable for automotive LED lighting development, diagnostic algorithm validation, SPI-based LED driver integration, and embedded firmware prototyping requiring stable component supply and traceable sourcing.

Supply support for STEVAL-ILL059V1 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 power management solutions, with broad portfolio of microcontrollers, analog ICs, and power devices.

This evaluation board belongs to ST's STEVAL series of application-specific reference designs, developed to accelerate automotive lighting system development and validate ST's LED driver and MCU co-design methodology.

FAQ

What software tools are required to use the STEVAL-ILL059V1 GUI mode?

The STEVAL-ILL059V1 GUI requires ST's dedicated "LED Array Driver GUI" application, distributed with the board firmware package. It runs on Windows and communicates via USB-UART (CP2102 bridge). No additional IDE or compiler is needed for GUI operation-only the preloaded firmware and serial driver.

Can the board drive LEDs at voltages higher than 4.5 V?

No-the board's output stage is designed for constant-current sinking into LED anodes supplied externally. The 4.5 V rail powers logic and driver ICs only. LED forward voltage is applied externally to the anode side; the STAP16DPS05 supports up to 45 V anode supply, but that voltage must be provided by the user's external source.

How are open-circuit and short-circuit faults simulated on this board?

Faults are simulated using 30 dedicated jumper positions: OPEN_X_Y jumpers disconnect individual LED channels to simulate open circuits; SHORTXY jumpers connect output pins to GND or VDD to simulate shorts. Each fault condition triggers real-time detection and status reporting via SPI and GUI.

Is firmware source code available for the STM8A controller?

Yes-ST provides complete IAR Embedded Workbench project files, including C source code for pattern generation, SPI driver, error handling, and USB-UART protocol stack. The code is documented in Application Note AN4529 and included in the STEVAL-ILL059V1 firmware download package.