ZCC5069 高压热插拔和浪涌电流控制器替代LM5069

1 Features 1 • W ideoperatingrange:9Vt o80V • I n-rushcurrent l imit f orsafeboardi nsertioni nto livepowersources • P rogrammablemaximumpowerdissipationi nt he externalpassdevice • A djustablecurrent l imit • C ircuitbreakerf unctionf orsevereovercurrent events • I nternalhighsidechargepumpandgatedriverf or externalN-channelMOSFET • A djustableundervoltagel ockout(UVLO)and hysteresis • A djustableovervoltagel ockout(OVLO)and hysteresis • I nitial i nsertiont imerallowsringingandt ransients tosubsideaftersystemconnection • P rogrammablef ault t imeravoidsnuisancet rips • A ctivehighopendrainPOWERGOODoutput • A vailablei nl atchedf aultandautomaticrestart versions • 1 0-PinVSSOPpackage
2 A pplications • S erverbackplanesystems • B asestationpowerdistributionsystems • S olidstatecircuitbreaker • 2 4-Vand48-VI ndustrialsystems
3 Description The ZC5069positive h ot s wap c ontroller p rovidesintelli gent c ontrol o f t he p ower s upply c onnectionsduring i n sertionand r emoval of circuit cards f rom alive s ystembackplaneor other hot power s ources.Th eZCC5069provides i n-rushcurrent control t o l imitsyste mvoltagedroopandt ransients.Thecurrent l imitandpow erdissipation i nt heexternal seriespassNChannel M OSFET a re p rogrammable, e nsuringoper ationwithint heSafeOperatingArea( SOA).The POWERGOOD o utput i ndicates when t he o utputvolta gei swithin1.25Vof t hei nputvoltage.Thei nputundervolt age a nd o vervoltage l ockout l evels a ndhysteresis ar eprogrammable, aswell as t he i nitialinsertion d elay t i me a nd f ault d etection t ime. T heZCC5069-1l atchesof fafteraf aultdetection,whilet heZCC5069-2automaticall yr estartsataf ixeddutycycle.ZCC5069isavailablei na1 0-pinVSSOPpackag