U479B Overview
The monolithic integrated bipolar circuit, U479B, is designed as a monitor for lamp failure in automobiles. The parator threshold is matched to the PTC characteristic of incandescent lamps. The threshold is tied to V4,6 = VS - VT where VT = 8 mV.
U479B Key Features
- 2-kV ESD Protection Two parators with mon Reference Tight Threshold Tolerance Threshold Matched to PTC Characteristic of
- VT where VT = 8 mV. If the voltage drop across the shunt resistor, Rsh, exceeds 8 mV, the output is turned off, otherwis
