STMicroelectronics STEVAL-ILB004V1

Overview

STEVAL-ILB004V1 from STMicroelectronics is a demonstration board implementing an intelligent electronic ballast for T5 fluorescent lamps (24 W, 39 W, 54 W, and 80 W), integrating a ST7LIT19BF1 microcontroller, L6382D5 power management IC, and STP5NK60Z MOSFETs in a boost PFC + half-bridge inverter topology with zero-voltage switching and lamp-type auto-detection.

For engineers reviewing the STEVAL-ILB004V1 datasheet, STEVAL-ILB004V1 pinout, STEVAL-ILB004V1 application, or STEVAL-ILB004V1 equivalent, this board supports rapid evaluation of multipower fluorescent ballast control architecture, lamp recognition logic, transition-mode PFC regulation, and ZVS inverter timing-critical for lighting system design validation and firmware development.

Technical Context

The board implements a two-stage architecture: a transition-mode boost PFC controller (fixed T_ON, variable frequency) and a resonant half-bridge inverter operating in zero-voltage switching mode. Lamp identification is performed via analog sensing of lamp voltage/current characteristics during preheat.

Control is centralized on the ST7LIT19BF1 MCU, which reads lamp parameters through dedicated ADC inputs (PA0–PA7, PB0–PB5), generates PWM signals for ATIM/ATIC/LTIC channels, and interfaces with the L6382D5 gate driver to manage high-side and low-side MOSFET switching sequences and fault protection.

Key Specifications

Availability

STEVAL-ILB004V1 is available at Aetrix Electronics and suitable for fluorescent lamp ballast development, lighting system prototyping, and industrial lighting control validation requiring stable component supply and reference-grade implementation fidelity.

Supply support for STEVAL-ILB004V1 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 devices, analog ICs, and sensors for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series, developed specifically to demonstrate intelligent lighting control architectures using ST's proprietary mixed-signal MCUs and power management ICs for energy-efficient fluorescent and HID lamp systems.

FAQ

What lamp types does the STEVAL-ILB004V1 support?

The board supports T5 fluorescent lamps rated at 24 W, 39 W, 54 W, and 80 W. Lamp identification is fully automatic via analog sensing of preheat voltage and current waveforms, enabling plug-and-play compatibility without manual configuration or hardware jumpers.

Does the board include firmware, and can it be reprogrammed?

Yes-the ST7LIT19BF1 microcontroller is preloaded with ballast control firmware supporting lamp detection, PFC regulation, and ZVS inverter sequencing. It features an ICC programming interface (J3 header) compatible with ST's standard ICC programmers, allowing full firmware update and customization.

What protection features are implemented on the board?

The board integrates overcurrent protection via the L6382D5's CSI input, PFC overvoltage sensing, lamp-abnormal detection (open-circuit, short-circuit, end-of-life), and thermal monitoring using NTC1. All protections trigger immediate shutdown and latch until reset.

Can the STEVAL-ILB004V1 drive multiple lamps simultaneously?

No-it is designed as a single-channel ballast demonstrator for one T5 lamp group. However, its architecture and firmware structure are scalable; the ST7LIT19BF1's multi-channel PWM and ADC resources allow extension to multi-lamp configurations with appropriate hardware modifications and firmware adaptation.