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The MAX6375–MAX6380 are ultra-low-power circuits used for monitoring
battery, power-supply, and regulated system voltages. Each detector
contains a precision bandgap reference, comparator, and internally
trimmed resistors that set specified trip threshold voltages.
These devices provide excellent circuit reliability and low cost by
eliminating external components and adjustments when monitoring nominal
system voltages from 2.5V to 5V.
These circuits perform a single function: they assert an output signal
whenever the VCC supply voltage falls below a preset threshold. The
devices are differentiated by their output logic configurations and
preset threshold voltages.
The MAX6375/MAX6378 (push-pull) and MAX6377/MAX6380 (open-drain) have an
active-low output (OUT is logic low when VCC is below VTH). The
MAX6376/MAX6379 have an active-high push-pull output (OUT is logic high
when VCC is below VTH).
All parts are guaranteed to be in the correct output logic state for VCC
down to 1V. The detector is designed to ignore fast transients on VCC.
MAX6377 have voltage thresholds between 2.20V and 3.08V in approximately
100mV increments. The MAX6378/MAX6379/MAX6380 have voltage thresholds
between 3.30V and 4.63V in approximately 100mV increments.
Precision Battery Monitoring
Load Switching/Power Sequencing
Power-Supply Monitoring in Digital/Analog Systems
Na wenn das nichts ist!