Product Details

Active Low Power-On Reset Timer (1s POR)

The LTC6995 provides a simple, accurate low frequency clock uniquely configurable for long duration power-on reset and watchdog timer applications. In this example the LTC6995 combines an programmable oscillator with precision circuitry and logic to achieve an accurate 1 second POR. This resistor-settable POR can be programmed for a period from 1ms to 4.8 hours. Upon power-on or a reset signal, the LTC6995 will initiate a full output clock cycle and the polarity of the output can be configured for active-low or active-high operation. The LTC6995 can operated under high acceleration, vibration and temperature extremes and do not require timing capacitors, crystals, microcontroller or programming.

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LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.