OverVoltage Crowbar Sensing Circuit

This overvoltage protection circuit MC3423 (OVP) protects sensitive electronic circuitry MC3423 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.
By ON Semiconductor
MC3423 's PackagesMC3423 's pdf datasheet
MC3423DG SOIC
MC3423DR2G SOIC
MC3423P1G PDIP
MC3423D SOIC
MC3423DR2 SOIC
MC3423P1 PDIP




MC3423 Pinout, Pinouts
MC3423 pinout,Pin out
This is one package pinout of MC3423,If you need more pinouts please download MC3423's pdf datasheet.

MC3423 Application circuits
MC3423 circuits
This is one application circuit of MC3423,If you need more circuits,please download MC3423's pdf datasheet.


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