Low-Voltage μP Supervisor with Manual Reset

The ADPL62935 is a low-voltage microprocessor (μP) supervisory circuit that combines voltage monitoring and manual reset input functions in a 5-pin SOT23 package. Microprocessor supervisory circuits significantly improve the system’s reliability and accuracy compared to separate ICs or discrete components. These devices assert a reset signal whenever the monitored voltage drops below its preset threshold, keeping it asserted for a minimum timeout period after VCC rises above the threshold. In addition, a debounced manual reset is also available. The ADPL62935 monitors voltages from +1.8V to +5.0V. These outputs are guaranteed to be in the correct state for VCC down to +1.0V.

Nine preprogrammed reset threshold voltages are available (see the Threshold Suffix Guide). The ADPL62935 has a manual reset input and both push-pull RESET and push-pull RESET.

APPLICATIONS

* Set-Top Boxes

* Computers and Controllers

* Embedded Controllers

* Intelligent Instruments

* Critical μP Monitoring

* Portable/Battery-Powered Equipment

* Monitors +1.8V, +2.5V, +3.0V, +3.3V, +5.0V Supplies

* 140ms (min) Reset Timeout Delay

* Manual Reset Input

* Two Reset Output Options

* Push-Pull RESET

* Push-Pull RESET

* Guaranteed Reset Valid to VCC = +1.0V

* Immune to Short Negative VCC Transients

* No External Components

* Small 5-Pin SOT23 Packages