STMicroelectronics STEVAL-ILL003V2

Overview

STEVAL-ILL003V2 from STMicroelectronics is a high-brightness 32-LED matrix evaluation board based on the STP16CP05 constant-current LED driver, featuring adjustable brightness and blinking modes, 5–35 V input voltage range, DC-DC conversion via L5970D, and microcontroller-based animation control using ST7LITE09.

For engineers reviewing the STEVAL-ILL003V2 datasheet, STEVAL-ILL003V2 pinout, STEVAL-ILL003V2 application, or STEVAL-ILL003V2 equivalent, this board supports rapid prototyping of LED signage, animated displays, industrial status indicators, and automotive interior lighting with validated current regulation and thermal-safe operation.

Technical Context

The board integrates STP16CP05 (16-channel constant-current sink driver, 100 mA per channel, 24-pin SO24 package) and ST7LITE09 (8-bit MCU with 8 KB Flash, 32-pin TQFP) to manage LED sequencing, brightness via PWM, and blinking mode selection through onboard potentiometers and DIP switches.

Power architecture includes L5970D step-down DC-DC converter (5 V output, 2 A max, 150 kHz switching) and L78L33 linear regulator (3.3 V, 100 mA) for MCU and logic supply, enabling stable operation across wide input voltage range while minimizing heat dissipation.

Key Specifications

Availability

STEVAL-ILL003V2 is available at Aetrix Electronics and suitable for LED signage development, industrial HMI status panels, automotive interior lighting validation, and embedded display prototyping requiring stable component supply and documented reference design integration.

Supply support for STEVAL-ILL003V2 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog devices for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built reference platforms that demonstrate real-world implementation of ST's LED drivers, power converters, and MCUs for rapid system validation and design-in acceleration.

FAQ

What is the maximum LED forward current supported per channel on STEVAL-ILL003V2?

The STP16CP05 driver on STEVAL-ILL003V2 delivers up to 100 mA per output channel, set by the external R-EXT resistor (R4 = 560 Ω). This ensures uniform current distribution across all 32 LEDs, preventing brightness variance and thermal drift under continuous operation.

Can STEVAL-ILL003V2 operate directly from a 24 V automotive battery?

Yes - its 5–35 V input range and integrated L5970D DC-DC converter allow direct connection to 24 V nominal automotive systems. The board includes reverse-polarity protection diode (D34, STPS340U) and input filtering (C9, L1) to withstand load-dump transients up to 40 V.

Is firmware source code provided for the ST7LITE09 MCU on this board?

ST provides the compiled HEX file and schematic documentation, but full C source code is not included in the official data brief. Application notes AN2621 and AN2701 describe ST7LITE09 LED control firmware structure, and ST's STVD7 IDE supports recompilation if custom modifications are needed.

Does STEVAL-ILL003V2 support diagnostic or fault reporting features?

No - the board implements basic LED driving without built-in diagnostics. The STP16CP05 lacks open-load or over-temperature reporting; fault detection relies on external monitoring of MCU GPIOs or VDD rail stability. This aligns with its "no diagnostic" designation in the official title and data brief.