Pin-Selectable, Hex Power-Supply Supervisory Circuit

The MAX6886 pin-selectable, multivoltage supply supervisor monitors six voltage-detector inputs and one watchdog input, asserting an active-low RESET when inputs drop below the selected voltage thresholds or the watchdog timer expires. Manual reset and margin disable inputs offer additional flexibility.

Five logic inputs select the MAX6886 thresholds. Logic inputs select a supply tolerance (5% or 10%) and 1 of 32 factory-set threshold settings. Connect external capacitors or use the factory default setting to set the watchdog timeout periods and reset time delay.

The MAX6886 is available in a 20-pin thin QFN (5mm x 5mm x 0.8mm) package and operates over the extended -40°C to +85°C temperature range.

Applications

* Multivoltage Systems * Networking * Servers/Workstations/Storage Systems * Telecom

* 32 Pin-Selectable Undervoltage Detector Thresholds

* Capacitor-Adjustable Reset and Watchdog Timeout Periods

* Factory Default Reset and Watchdog Timeout Periods

* Margining Disable and Manual Reset Controls

* -40°C to +85°C Operating Temperature Range

* Small 5mm x 5mm 20-Pin Thin QFN Package

* Few External Components

* ±1% Threshold Accuracy