The MAX16025–MAX16030 are dual-/triple-/quad-voltage
monitors and sequencers that are offered in a
small TQFN package. These devices offer enormous
design flexibility as they allow fixed and adjustable
thresholds to be selected through logic inputs and provide
sequence timing through small external capacitors.
These versatile devices are ideal for use in a wide
variety of multivoltage applications.
As the voltage at each monitored input exceeds its
respective threshold, its corresponding output goes
high after a propagation delay or a capacitor-set time
delay. When a voltage falls below its threshold, its
respective 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 is
available with push-pull or open-drain configuration
with the open-drain version capable of supporting voltages
up to 28V, thereby allowing them to interface to
shutdown and enable inputs of various DC-DC regulators.
Each detector can operate independently as four
separate supervisory circuits or can be daisy-chained
to provide controlled power-supply sequencing.
The MAX16025–MAX16030 also include a reset function
that deasserts only after all of the independently
monitored voltages exceed their threshold. The reset
timeout is internally fixed or can be adjusted externally.
These devices are offered in a 4mm x 4mm TQFN
package and are fully specified from -40°C to +125°C.
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