Triple Voltage Monitor with ‘Power Good’ Signal

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eric

Posted: Mon Aug 28, 2006 10:42 pm Post subject: Triple Voltage Monitor with ‘Power Good’ Signal

Site Admin Joined: 01 Jan 1970 Posts: 311

In order to monitor multiple power supply voltages it is possible
to use one comparator per voltage, coupled with some logic
to combine the output signals and, for example, generate a
reset signal for a microprocessor.
Things are simpler with the LTC1727 from Linear Technology
(www.linear-tech.com/pdf/17278fa.pdf). This IC is available in
different voltage variants. The threshold voltages are as follows

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