STMicroelectronics 70 W electronic ballast for metal halide lamp (HID) based on the L6382D5 and ST7FLITE49K2 STEVAL-ILH0 STEVAL-ILH004V1 Data Sheet

   

   

   

For further information contact your local STMicroelectronics sales office.

October 2011

Doc ID 022333 Rev 1

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70 W electronic ballast for metal halide lamp (HID)

based on the L6382D5 and ST7FLITE49K2

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Minimum mains voltage (rms value):  85 V

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Maximum mains voltage (rms value) :  265 V

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Minimum mains frequency( fmin): 47 Hz

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Expected bridge efficiency (H-bridge):  95%

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Rated lamp power (Plamp) : 70 W

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Rated output power: 73 W

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Output current: 0.18 A

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Regulated DC output voltage (V

out 

):  410 V

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Maximum output low-frequency V

out

 ripple:

20 V

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PFC minimum switching frequency:  30 kHz

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Expected PFC efficiency 96 %

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Expected input section efficiency:  99%

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Expected power factor: 0.99

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RoHS compliant

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.