STMicroelectronics STEVAL-ILL058V1

Overview

STEVAL-ILL058V1 from STMicroelectronics is an evaluation board designed to demonstrate the STAP08DP05 8-bit constant-current LED sink driver for automotive lighting applications. It supports adjustable output current (5–100 mA per channel), short/open output error detection, 30 MHz serial data transfer, and operation from 3.0–5.5 V supply. The board enables rapid validation of dashboard backlighting, DTRLs, and interior/exterior LED arrays using the TSSOP16-exposed-pad IC.

For engineers reviewing the STEVAL-ILL058V1 datasheet, STEVAL-ILL058V1 pinout, STEVAL-ILL058V1 application, or STEVAL-ILL058V1 equivalent, this page delivers verified functional context, thermal design guidance for HTSSOP exposed-pad layout, error-detection mode timing sequences, and OEM-ready supply chain support - all specific to automotive-grade LED driver evaluation.

Technical Context

The STEVAL-ILL058V1 implements the STAP08DP05 in a fully populated, test-ready configuration with on-board R_EXT resistor selection (3.9 kΩ, 980 Ω, 200 Ω), dedicated OE/DM2 and LE/DM1 control headers, and 8-channel LED test points. It replicates production-level thermal management via soldered exposed pad and 2-layer PCB copper pour.

It validates the device's dual-mode operation: normal shift-register-driven LED control and 5-cycle logic-sequenced error detection (open line, short-to-GND, short-to-V_LED). Detection results are serially shifted out via SDO at ≤30 MHz, preserving timing integrity across cascaded configurations.

Key Specifications

Availability

STEVAL-ILL058V1 is available at Aetrix Electronics and suitable for automotive dashboard backlighting, daytime running light (DTRL) validation, and interior/exterior LED module prototyping requiring stable component supply and AEC-Q100-compliant reference designs.

Supply support for STEVAL-ILL058V1 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, specializing in automotive, industrial, and power management solutions with over 40 years of analog/mixed-signal IP expertise.

The STEVAL-ILL058V1 belongs to ST's LED Driver Evaluation Platform family, engineered specifically to accelerate qualification of AEC-Q100-compliant constant-current drivers in safety-critical automotive lighting systems.

FAQ

What is the primary function of the STEVAL-ILL058V1 evaluation board?

The STEVAL-ILL058V1 is a fully assembled demonstration platform for the STAP08DP05 LED driver IC. It provides immediate hardware access to all 8 output channels, configurable R_EXT networks, and dedicated control headers for OE/DM2 and LE/DM1 - enabling direct validation of serial data loading, latch timing, output enable sequencing, and error-detection mode entry/resume logic as defined in the STAP08DP05 datasheet.

Does the board support daisy-chaining multiple STAP08DP05 devices?

Yes. The STEVAL-ILL058V1 exposes SDI and SDO pins with proper signal routing and termination, allowing up to 16 devices to be cascaded in series. Its layout respects the 30 MHz maximum clock frequency and maintains setup/hold timing margins for CLK, SDI, and LE signals - verified per Table 8 of the STAP08DP05 datasheet under cascade operation conditions.

How is thermal performance validated on this evaluation board?

The board implements the STAP08DP05 in its native HTSSOP16-exposed-pad package, with the thermal pad fully soldered to a dedicated 2-layer internal copper pour connected to system ground. This matches JEDEC 51-7 thermal test conditions and achieves the rated 37.5 °C/W junction-to-ambient resistance - confirmed by ST's thermal characterization in Section 3.2 of DocID024305 Rev 6.

Can the STEVAL-ILL058V1 be used for production-level compliance testing?

No. While the board uses the production-grade STAP08DP05 IC and follows AEC-Q100-relevant layout practices (e.g., exposed pad soldering, thermal vias, controlled impedance traces), it is not certified for automotive production use. It serves strictly as a functional and electrical validation tool - supporting pre-compliance checks, firmware integration, and failure-mode analysis prior to custom PCB design and IATF 16949-aligned manufacturing.