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发布者:微桥FP131 发布时间:2010-1-16 阅读:5797次    关键字: ocp FP131
FP131-OVER CURRENT PROTECTION IC


FP131 OVER CURRENT PROTECTION IC
General Description
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 FP131 is a main rail current detection and over current protection IC. It is including a current shunt comparator, photo driver comparator with a non-inverting input precision reference regulator.
The current shunt comparator has the any gain adjustable function for rail current detection using three external resistors, and the comparator non-inverting input has a 1.25V regulator for over current reference which is comparing with the output of shunt comparator and its output is driving the photo-coupler, and output active when the over current is occurred.
FP131 is used with a few external parts for O.C.P. function and good active point during wide temperature range in secondary main rail power supply of SPS or DC-DC converter power supply application field.
 
Features
˙Wide operating voltage range: +2.7V~ +28V
˙Independent shunt and supply voltage
˙Low input offset voltage
˙Sense gain adjustable
˙Comparator reference voltage: 1.25V (2%)
˙Output sink current capability up to 16mA
˙Package: PDIP8/SOP8
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