This document introduces a simplified three-level dimming CFL fluorescent ballast using the IRS2530D DIM8TM
The IRPLCFL8U reference design kit includes a dimming fluorescent ballast, a 3‑way dimming switch, and a single 32 W spiral CFL lamp. It uses the IRS2530D (DIM8) high‑voltage integrated circuit and incorporates an EMI filter, delivering a compact solution for evaluating three‑way CFL dimming.
The document contains a features list, functional description, circuit schematic, PCB layout, bill of materials, and inductor specifications. It highlights fault protection, lamp pre‑heating, and a closed‑loop lamp current regulation scheme to ensure reliable ignition across all dimming levels.
| Input Voltage | 120 Vac |
|---|---|
| Lamp Type | 1 × 32 W Spiral CFL Lamp |
| Component Count | 50 parts |
| Nominal Inductance | 2.3 mH |
| Core Material | Philips3C85, Siemens N27 or equivalent |
It drives a single 32 W spiral CFL lamp.
The design uses 50 parts.
The ballast requires a 120 Vac input.
The nominal inductance is 2.3 mH.