The MIC841 and MIC842 are micropower, precision voltage comparators with an on-chip voltage reference. Both devices are intended for voltage monitoring applications. External resistors are used to set the voltage monitor threshold. When the threshold is crossed, the outputs switch polarity. The MIC842 incorporates a voltage reference and comparator with fixed internal hysteresis, two external resistors are used to set the switching threshold voltage.

1.5V to 5.5V operating range
1.5μA typical supply current
±1.25% voltage threshold accuracy
10nA maximum input leakage current over temperature
10μs propagation delay
Externally adjustable hysteresis (MIC841)
Internal 20mV hysteresis (MIC842)
Output options
Push-pull, active high
Push-pull, active low
Open drain, active low
Open drain output can be pulled to 6V regardless of VDD
Immune to brief input transients
Teeny™ 5-pin SC-70 package
6-pin 1.6mm x 1.6mm TDFN (MIC841)
4-pin 1.2mm x 1.6mm TDFN (MIC842)