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Partname:U4791B-FP
Description:Automotive Lamp Outage Monitor, VT = 53 mV
Manufacturer:
Datasheet:PDF (80.6K).
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The monolithic integrated bipolar circuit, U4791B, is designed as a monitor for lamp failure in automobiles. The comparator threshold is matched to the PTC characteristic of incandescent lamps. The threshold is tied to a typical value of V4,6 = VS VT whereas VT = 53 mV.

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