Datasheet

LP395
www.ti.com SNOSBF3C –APRIL 1998–REVISED MARCH 2013
SIMPLIFIED CIRCUIT
APPLICATIONS INFORMATION
One failure mode incandescent lamps may experience is one in which the filament resistance drops to a very low
value before it actually blows out. This is especially rough on most solid-state lamp drivers and in most cases a
lamp failure of this type will also cause the lamp driver to fail. Because of its high gain and blowout-proof design,
the LP395 is an ideal candidate for reliably driving small incandescent lamps. Additionally, the current limiting
characteristics of the LP395 are advantageous as it serves to limit the cold filament inrush current, thus
increasing lamp life.
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