STMicroelectronics STEVAL-ILH005V2

Overview

STEVAL-ILH005V2 from STMicroelectronics is a demonstration board implementing a two-stage 150 W electronic ballast for HID lamps, using the L6562A PFC controller and ST7LITE39F2 microcontroller. It delivers regulated 420 V DC output at 0.38 A, supports 185–265 V_AC, 47–63 Hz input, achieves 0.99 power factor and 96% PFC efficiency, and drives metal halide and high-pressure sodium lamps in lighting infrastructure.

For engineers reviewing the STEVAL-ILH005V2 datasheet, STEVAL-ILH005V2 application, STEVAL-ILH005V2 schematic, or STEVAL-ILH005V2 alternative evaluation boards, this board provides validated reference design for HID lamp ballast development with documented PFC and full-bridge inverter stages, measured ripple (≤20 V), overvoltage protection (50 V), and bridge efficiency (95%).

Technical Context

The board implements a transition-mode boost PFC stage followed by a low-frequency square-wave full-bridge inverter. The PFC section uses the L6562A to achieve >0.99 power factor and 96% efficiency, while the inverter stage-controlled by the ST7LITE39F2-drives the lamp at ~100–200 Hz with precise current regulation and overvoltage protection.

Input rectification feeds both the PFC boost and auxiliary supply; the regulated 420 V DC bus powers the full-bridge switches, which are driven with complementary gate signals and dead-time control to prevent shoot-through. Lamp ignition and run-state management are handled via firmware on the ST7LITE39F2.

Key Specifications

Availability

STEVAL-ILH005V2 is available at Aetrix Electronics and suitable for industrial lighting design, HID lamp driver validation, and PFC + inverter topology prototyping requiring stable component supply and reference-grade implementation fidelity.

Supply support for STEVAL-ILH005V2 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, designing and manufacturing microcontrollers, analog ICs, power devices, and sensors for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series-engineered to accelerate adoption of ST's analog and mixed-signal power solutions through fully tested, schematically documented, and application-specific reference designs.

FAQ

What lamp types does the STEVAL-ILH005V2 support?

The board is designed for 150 W metal halide (MH) and high-pressure sodium (HPS) HID lamps. It delivers low-frequency square-wave output with regulated current (0.38 A) and controlled DC bus (420 V), meeting ignition and warm-up requirements for both lamp chemistries per ANSI C78.389 and IEC 60662 standards.

Does the board include lamp ignition circuitry?

Yes-the full-bridge inverter stage generates high-voltage pulses during startup to initiate lamp arc formation. Ignition sequencing and open-circuit detection are implemented in firmware on the ST7LITE39F2, with hardware-based overvoltage protection (ΔOVP = 50 V) to safeguard against no-load or failed-ignition conditions.

Can the PFC stage operate independently of the inverter?

Yes-the boost PFC section functions autonomously and produces a regulated 420 V DC output even with the inverter stage disabled. This allows isolated testing of power factor correction performance, efficiency measurement, and auxiliary supply validation without lamp load or bridge switching.

Is the STEVAL-ILH005V2 RoHS compliant?

Yes-the board complies with RoHS Directive 2011/65/EU as confirmed in the official data brief (Doc ID 018902 Rev 1). All PCB materials, solder, passives, and ICs-including the L6562A and ST7LITE39F2-are RoHS-compliant and lead-free processed.