STEVAL-ILH004V1 70 W electronic ballast for metal halide lamp (HID) based on the L6382D5 and ST7FLITE49K2 Data brief Features Minimum mains voltage (rms value): 85 V Maximum mains voltage (rms value) : 265 V Minimum mains frequency( fmin): 47 Hz Expected bridge efficiency (H-bridge): 95% Rated lamp power (Plamp) : 70 W Rated output power: 73 W Output current: 0.18 A Regulated DC output voltage (Vout ): 410 V Maximum output low-frequency Vout ripple: 20 V PFC minimum switching frequency: 30 kHz Expected PFC efficiency 96 % Expected input section efficiency: 99% Expected power factor: 0.99 RoHS compliant STEVAL-ILH004V1 Description The STEVAL-ILH004V1 demonstration board implements a digital ballast for a 70 W HID lamp (sodium or metal halide) used in general lighting applications. The ballast is composed of a boost converter (power factor controller PFC) working in transition mode and an inverter composed of a half-bridge that drive the lamp in low-frequency square wave. Both the half-bridge and the PFC stage are managed by the ST7LITE49K2 that controls the L6382D5, activating all the power switches. 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