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U4790B
Automotive Lamp-Outage Monitor, VT = 8 mV, VZ(3,5) = 22 V
Description
The bipolar IC U4790B 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 where VT = 8 mV. If the voltage drop a...
