UU4793

DESCRIPTION 

The UTC UU4793 is a bipolar integrated circuit designed for 

monitoring over loading or short circuit in automotive or industrial 

applications. The threshold VT is 44.5 mV and V4, 6=VS-VT. VT is not 

dependent of the power supply voltage VS. If the voltage 

developed across shunt resistor RSH exceeds VT, IC turns on the 

output, or else turns off the output. 

The output is turned off when input switch Pin 8 is open or there 

is a lack of power supply voltage. The output breakdown voltage is 

decided by the Z-diodes Z3 and Z5 which have a typical value of

VZ = 22 V. 

A not used of the comparator input have to be connected to 

Pin 7. 

FEATURES 

* Two common reference comparators 

* Tight threshold tolerance 

* Constant threshold 

* Output with NPN 

* 8 kV - ESD protection 

* Protection of reverse polarity 

* Load-dump protection

规格书UU4793