STMicroelectronics STEVAL-ILH002V1

Overview

STEVAL-ILH002V1 from STMicroelectronics is a 35 W electronic ballast demonstration board for metal halide high-intensity discharge (HID) lamps, operating from 220 VAC input with 86% efficiency, 0.96 power factor, and 20% total harmonic distortion. It implements analog SUM-based power regulation for stable lamp operation across line and load variations.

For engineers reviewing the STEVAL-ILH002V1 datasheet, STEVAL-ILH002V1 pinout, STEVAL-ILH002V1 application, or STEVAL-ILH002V1 equivalent, this board supports rapid evaluation of HID lamp control architecture, analog dimming stability, thermal behavior under warm-up/re-ignition cycles, and compliance with RoHS and commercial lighting power quality requirements.

Technical Context

The STEVAL-ILH002V1 implements a fully analog control loop using the SUM method to regulate lamp power independent of mains voltage fluctuations and lamp aging effects. It integrates AC-DC conversion, high-frequency inverter stage, and lamp ignition circuitry on a single PCB measuring 76.55 mm × 113 mm.

It delivers 35 W to the metal halide lamp with measured input power (Pi) of 41.5 W, confirming system-level efficiency of 86%. The design avoids digital controllers or microcontrollers, relying instead on discrete analog comparators, op-amps, and dedicated ballast ICs for deterministic timing during ignition and warm-up phases.

Key Specifications

Availability

STEVAL-ILH002V1 is available at Aetrix Electronics and suitable for commercial lighting system validation, HID lamp driver qualification, and energy-efficient retrofit projects requiring stable component supply and documented reference performance.

Supply support for STEVAL-ILH002V1 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, delivering silicon solutions for automotive, industrial, and power applications with emphasis on reliability and system integration.

This board belongs to ST's STEVAL (ST Evaluation) series, designed to accelerate prototyping and validation of complete subsystems-here, analog HID ballast topologies-without requiring custom PCB development or firmware investment.

FAQ

What lamp types is STEVAL-ILH002V1 validated for?

The board is specifically designed and tested for 35 W metal halide HID lamps. It is not compatible with sodium vapor, mercury vapor, or fluorescent lamps due to differences in ignition voltage, warm-up profile, and impedance characteristics. Lamp data sheet matching is required before integration.

Does STEVAL-ILH002V1 support dimming or modulation?

No, the board implements fixed-output power regulation only. It lacks analog dimming inputs or PWM interfaces. Dimming capability would require redesign of the SUM feedback network and recharacterization of lamp stability across reduced power levels.

What is the warm-up and re-ignition behavior?

Measured warm-up time to full light output is ~4–5 minutes. Re-ignition after hot shutdown requires ≥10 minutes cooling period, consistent with standard metal halide lamp physics-not an electronic limitation but inherent to lamp chemistry and electrode temperature constraints.

Is the schematic and layout available for reuse?

Yes, the full schematic and bill-of-materials are published in Doc ID 17003 Rev 1. However, ST does not grant license for commercial reproduction or derivative designs without separate agreement. Layout files are not provided; only PDF schematics and assembly drawings are included.