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MC3423

ON Semiconductor
Part Number MC3423
Manufacturer ON Semiconductor
Description Overvoltage Crowbar Sensing Circuit
Published Apr 19, 2007
Detailed Description MC3423 Overvoltage Crowbar Sensing Circuit This overvoltage protection circuit (OVP) protects sensitive electronic circu...
Datasheet PDF File MC3423 PDF File

MC3423
MC3423


Overview
MC3423 Overvoltage Crowbar Sensing Circuit This overvoltage protection circuit (OVP) protects sensitive electronic circuitry from overvoltage transients or regulator failures when used in conjunction with an external “crowbar” SCR.
The device senses the overvoltage condition and quickly “crowbars” or short circuits the supply, forcing the supply into current limiting or opening the fuse or circuit breaker.
The protection voltage threshold is adjustable and the MC3423 can be programmed for minimum duration of overvoltage condition before tripping, thus supplying noise immunity.
The MC3423 is essentially a “two terminal” system, therefore it can be used with either positive or negative supplies.
Features http://onsemi.
com MARKING DIAGRAMS 8 1 PDIP−8 P1 SUFFIX PLASTIC PACKAGE CASE 626 MC3423P1 AWL YYWW • Pb−Free Package is Available MC3423P1 = Device Code A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week MAXIMUM RATINGS Rating Differential Power Supply Voltage Sense Voltag...



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