STMicroelectronics STEVAL-ILL009V5

Overview

STEVAL-ILL009V5 from STMicroelectronics is a RGB color demonstration board built around the ST1S10 3 A DC-DC converter (7–18 V input) and dual LED drivers STP04CM05 and STP08CP05, enabling fast color sequencing, brightness control, and thermal protection for multi-channel LED systems.

For engineers reviewing the STEVAL-ILL009V5 datasheet, STEVAL-ILL009V5 pinout, STEVAL-ILL009V5 application, or STEVAL-ILL009V5 equivalent, this board serves as a validated reference for evaluating ST's high-efficiency LED driver + buck converter architecture in compact lighting and display power designs.

Technical Context

The board integrates the ST1S10 synchronous step-down converter operating at fixed 500 kHz switching frequency with internal 120 mΩ high-side MOSFET, delivering regulated 5 V output to power microcontroller and LED drivers. Input overvoltage protection is implemented via SMAJ15A-TR Transil diode clamping at 15 V.

LED drive functionality is split across two ICs: STP04CM05 (4-channel constant-current sink, 30 mA/channel, SPI interface) and STP08CP05 (8-channel constant-current sink, 30 mA/channel, SPI interface), both supporting /LE latch control, /OE enable, and R_EXT-set current accuracy.

Key Specifications

Availability

STEVAL-ILL009V5 is available at Aetrix Electronics and suitable for LED lighting evaluation, display backlight prototyping, and embedded color-control system development requiring stable component supply and documented reference design validation.

Supply support for STEVAL-ILL009V5 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/mixed-signal products for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series-reference designs intended to accelerate customer adoption of ST's power management and LED driver ICs through fully tested, documented, and application-ready hardware.

FAQ

What is the primary function of the ST1S10 on this board?

The ST1S10 serves as the main 3 A synchronous buck converter, accepting 7–18 V input and delivering a tightly regulated 5 V output to power the ST7FLITE09 microcontroller, LED drivers, and peripheral circuitry. Its integrated high-side MOSFET and 500 kHz fixed-frequency operation minimize external component count and board area.

How are the LED drivers configured for RGB control?

The STP04CM05 drives four channels (R, G, B, and manual/white control), while the STP08CP05 drives eight additional channels (including automatic color sequencing, temperature indicators, and status LEDs). Both use SPI with /LE latching to synchronize brightness updates across all 12 outputs without flicker.

Does the board include firmware or software support?

Yes-the board ships with preloaded firmware on the ST7FLITE09 microcontroller enabling out-of-box RGB color cycling, manual color selection, brightness adjustment, and thermal monitoring. Source code and configuration tools are available from ST's official website under the STEVAL-ILL009V5 design package.

Can the STEVAL-ILL009V5 be used with non-ST microcontrollers?

Yes-SPI interface pins (SDI, SDO, CLK, /LE, /OE) are brought out to accessible headers, allowing direct connection to external MCUs. The board requires only 5 V logic-level signals and does not depend on ST7FLITE09-specific peripherals; timing and register mapping follow STP04CM05/STP08CP05 datasheet specifications.