MIC841

MIC841/2 Comparator with 1.25% Reference and Adjustable Hysteresis Features 1.5V to 5.5V Operating Range 1.5 μA Typical Supply Current ±1.25% Voltage Threshold Accuracy 10 nA Maximum Input Leakage Current Over Temperature 10 μs Propagation Delay Externally Adjustable Hysteresis (MIC841) Internal 20 mV 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 1.6 mm x 1.6 mm TDFN (MIC841) 4-Pin 1.2 mm x 1.6 mm TDFN (MIC842) Applications Smartphones PDAs Precision Battery Monitoring Battery Chargers General Description The MIC841 and MIC842 are micro-power, 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. The MIC841 provides a similar function with user adjustable hysteresis; this part requires three external resistors to set the upper and lower thresholds (the difference between the threshold voltages being the hysteresis voltage). Both the MIC841 and MIC842 are available with push-pull or open-drain output sta...