DESCRIPTION
It is independent of the supply voltage, VS. If the voltage drop across shunt resistor, Rsh, exceeds this value, the output is turned on, otherwise the output is turned off. Without supply voltage or open input Pin 8, the output is turned off. The output breakdown voltage is determined by the Z-diodes Z3 and Z5 with a typical value of VZ = 22 V. A not used comparator input must be connected to Pin 7. FEATURES
D D D D D 10 kV – ESD protection Two comparators with common reference Tight threshold tolerance Constant threshold NPN output D Interference and damage–protection according to VDE 0839 D EMI protection D Reversal polarity protection D Load-dump protection Ordering Information Extended Type Number U4793B U4793B–FP Package DIP8 SO8 Remarks Block Diagram VS 2 Rsh Z2 + – 0.6 VS – + 8 + – 6 Z3 1 Load R1 150 W 3 & OUT2 & Z5 7 5 VBatt OUT1 4 Rsh 95 10608 Figure 1. Schematic and application circuit TELEFUNKEN Semiconductors Rev. A2, 06-Mar-97 1 (5) U4793B Pin DESCRIPTION
Inpu...
TEMIC Semiconductors
