Description

The MAX16025–MAX16030 are dual-/triple-/quad-voltagemonitors and sequencers that are offered in asmall TQFN package. These devices offer enormousdesign flexibility as they allow fixed and adjustablethresholds to be selected through logic inputs and providesequence timing through small external capacitors.These versatile devices are ideal for use in a widevariety of multivoltage applications.As the voltage at each monitored input exceeds itsrespective threshold, its corresponding output goeshigh after a propagation delay or a capacitor-set timedelay. When a voltage falls below its threshold, itsrespective output goes low after a propagation delay.Each detector circuit also includes its own enable input,allowing the power-good outputs to be shut off independently.The independent output for each detector isavailable with push-pull or open-drain configurationwith the open-drain version capable of supporting voltagesup to 28V, thereby allowing them to interface toshutdown and enable inputs of various DC-DC regulators.Each detector can operate independently as fourseparate supervisory circuits or can be daisy-chainedto provide controlled power-supply sequencing.The MAX16025–MAX16030 also include a reset functionthat deasserts only after all of the independentlymonitored voltages exceed their threshold. The resettimeout is internally fixed or can be adjusted externally.These devices are offered in a 4mm x 4mm TQFNpackage and are fully specified from -40°C to +125°C.ApplicationsDC-DC SuppliesMultivoltage SystemsNetworking/Telecommunication EquipmentServers/WorkstationsStorage Systems