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The RT9834 is a micro-power voltage detector with deglitched manual reset input supervising the power supply voltage level for microprocessors (μP) or digital systems. It provides internally fixed threshold levels with 0.1V per step ranging from 1.2V to 5V, which covers most digital applications. It features low supply current of 3μA. The RT9834 performs supervisory function by sending out a reset signal whenever the V<sub>DD</sub> voltage falls below a preset threshold level. This reset signal will last the whole period before V<sub>DD</sub> recovering. Once V<sub>DD</sub> recovered upcrossing the threshold level, the reset signal will be released after a certain delay time. To pull reset signal low manually, just pull the manual reset input (MR) below the specified V<sub>IL</sub> level. The RT9834 is available in the SC-82 and <br />SOT-143 packages.
RT9834 Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Internally Fixed Threshold 1.2V to 5V in 0.1V Step </li><li>High Accuracy ±1.5% </li><li>Low Supply Current 3μA </li><li>No External Components Required </li><li>Quick Reset within 20μs </li><li>Built-in Recovery Delay : 0ms, 55ms, 220ms, 450ms Options </li><li>Low Functional Supply Voltage 0.9V </li><li>CMOS Push-Pull Output </li><li>Small SC-82 and SOT-143 Packages </li><li>RoHS Compliant and Halogen Free </li></ul></div>
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RT9834 Ordering Information
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<div class="spec-list"><ul class="lv1"><li>Computers </li><li>Controllers </li><li>Intelligent Instruments </li><li>Critical μP and μC Power Monitoring </li><li>Portable/Battery-Powered Equipment </li></ul></div>
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