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U4791B

TEMIC Semiconductors
Part Number U4791B
Manufacturer TEMIC Semiconductors
Description Automotive Lamp Outage Monitor/ VT = 53 mV
Published Apr 16, 2005
Detailed Description U4791B Automotive Lamp Outage Monitor, VT = 53 mV Description The monolithic integrated bipolar circuit, U4791B, is desi...
Datasheet PDF File U4791B PDF File

U4791B
U4791B

Overview
U4791B Automotive Lamp Outage Monitor, VT = 53 mV Description 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.
The integrated circuit is recommended for the application of parallel connected lamps.
If the voltage drop across shunt resistor, Rsh, exceeds 53 mV, the output is turned off, otherwise the output is turned on.
Without supply voltage or open input Pin 8 the output is turned off.
A not used comparator must be connected to Pin 7.
Features D D D D 10 kV–ESD protect...


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