STMicroelectronics STEVAL-ILL015V1

Overview

STEVAL-ILL015V1 from STMicroelectronics is a demonstration board built around two STP24DP05 24-bit constant-current RGB LED sink drivers (TQFP48) and an STM32 microcontroller, supporting 3×16 high-brightness RGB LEDs with per-channel error detection, over-temperature flagging, and fault simulation via jumpers. It integrates the ST1S010 DC-DC converter (7.5–18 V input, 0.7 A), JTAG interface, Mini USB PC GUI link, and user controls for lab evaluation of LED driver performance in full-color display systems.

For engineers reviewing the STEVAL-ILL015V1 datasheet, STEVAL-ILL015V1 pinout, STEVAL-ILL015V1 application, or STEVAL-ILL015V1 equivalent, this board serves as a validated hardware platform to evaluate STP24DP05-based LED array control, real-time fault injection, thermal monitoring, and STM32-driven dimming algorithms - critical for display panel prototyping and lighting system validation.

Technical Context

The board implements a hierarchical LED drive architecture: the STM32 executes firmware to configure and monitor two cascaded STP24DP05 drivers, each managing 24 constant-current sinks (3×8 RGB channels). Each STP24DP05 provides open/short LED detection per output and communicates status via dedicated flag pins routed to the MCU.

Power delivery uses the ST1S010 synchronous step-down converter (1.2 MHz switching frequency, adjustable output) to generate stable bias rails; the STM32 operates from its internal high-speed RC oscillator (no external crystal required), reducing BOM cost and layout complexity while maintaining sufficient timing accuracy for LED PWM control.

Key Specifications

Availability

STEVAL-ILL015V1 is available at Aetrix Electronics and suitable for LED display prototyping, RGB lighting system validation, and power logic driver qualification requiring stable component supply and documented reference design traceability.

Supply support for STEVAL-ILL015V1 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

This board belongs to ST's STEVAL (ST Evaluation) series, developed specifically to accelerate customer adoption of ST's Power Logic LED drivers and STM32 MCUs in high-reliability, high-density RGB lighting applications.

FAQ

What is the primary function of the STEVAL-ILL015V1 board?

The STEVAL-ILL015V1 is a demonstration and evaluation platform designed to validate the STP24DP05 24-bit constant-current LED driver in real-world RGB array configurations. It enables functional testing of per-output error detection, thermal flag response, fault injection, and STM32-based PWM dimming - not a production-ready lighting module but a lab-grade verification tool.

Does the board support external clock sources for the STM32?

No - the board uses only the STM32's internal high-speed RC oscillator (HSI) at 8 MHz, as confirmed in the official data brief. No external crystal or oscillator circuitry is populated; clock stability is intentionally traded for BOM simplicity and cost reduction in this evaluation context.

Can the STP24DP05 drivers be replaced with other LED drivers on this board?

No - the PCB layout, routing, and firmware are specifically optimized for the STP24DP05 in TQFP48 package. Pinout, current-sink topology, flag signaling, and SPI-like control protocol are not compatible with alternate drivers such as TLC5940 or PCA9685 without hardware redesign and firmware rework.

Is CAN functionality implemented on this board?

No - although the schematic diagram labels a "CAN" net in Figure 1, no CAN transceiver, controller, or physical layer components are present. The label appears to be a schematic placeholder or legacy annotation; the board has no CAN hardware, firmware stack, or interface capability.