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MIC842HYC5 Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC842HYC5 Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 11 page MIC841/842 Comparator with 1.25% Reference and Adjustable Hysteresis Teeny is a trademark of Micrel, Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com July 24, 2015 Revision 5.0 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 stage. The push-pull output stage is configured either active high or active low; the open-drain output stage is only configured active low. Supply current is extremel y low (1.5μA, typical), making it ideal for portable applications. The MIC841/2 is supplied in Micrel’s Teeny™ 5-pin SC-70, 6-pin 1.6mm × 1.6mm Thin DFN (MIC841), and 4- pin 1.2mm × 1.6mm Thin DFN (MIC842) packages. Datasheets and support documentation are available on Micrel’s web site at: www.micrel.com. Features • 1.5V to 5.5V operating range • 1.5μA typical supply current • ±1.25% voltage threshold accuracy • 10nA maximum input leakage current overtemperature • 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 V DD • Immune to brief input transients • Teeny 5-pin SC-70 package • 6-pin 1.6mm × 1.6mm TDFN (MIC841) • 4-pin 1.2mm × 1.6mm TDFN (MIC842) Applications • Smart phones • PDAs • Precision battery monitoring • Battery chargers Typical Application Threshold Detection with Adjustable Hysteresis Threshold Detector with Internal Fixed Hysteresis |
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