19-2533; Rev 1; 1/03
Ultra-Low-Power
Voltage Detectors and µP Supervisory Circuits
General Description
The MAX6461–MAX6466 family of ultra-low-power
voltage detectors and µP reset supervisory circuits monitors battery, power-supply, and system
voltages.
Each circuit includes a precision bandgap reference, a comparator, internally trimmed resistor networks that set specified trip thresholds, and an internal 5% threshold hysteresis circuit (see the Functional Diagram).
Output is asserted when VCC falls below the internal VTH- and remains asserted until VCC rises above VTH+ (VTH+ = VTH- × 1.
05).
These devices provide excellent circuit reliability and low cost by eliminating external components...