INTEGRATED CIRCUIT WITH SUPPLY VOLTAGE DETECTOR
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United States of America
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Issued Date -
Dec 5, 2024
app pub date -
May 31, 2023
filing date -
May 31, 2023
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Abstract
A supply voltage detector of an integrated circuit is able to detect the state of a supply voltage upon startup with both high-speed and low overall power consumption. The supply voltage detector includes a comparator that generates an output voltage based on the current state of the supply voltage. The comparator includes a startup current booster that generates a supplemental current for the comparator while the supply voltage is ramping up. The start of current booster stops generating the supplemental current when the supply voltage reaches the expected steady-state value or a selected fraction or portion of the expected steady-state value.
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