UC3903 Datasheet - Texas Instruments

Quad Supply and Line Monitor

UC3903 Features

* 1

* Inputs for Monitoring up to Four Separate Supply Voltage Levels

* Internal Inverter for Sensing a Negative Supply Voltage

* Line/Switch Sense Input for Early Power Source Failure Warning

* Programmable Under- and Over-Voltage Fault Thresholds with Proportional Hys

UC3903 General Description

The UC1903 family of quad supply and line monitor integrated circuits will respond to under- and over-voltage conditions on up to four continuously monitored voltage levels. An internal op-amp inverter allows at least one of these levels to be negative. A separate line/switcher sense input is availa.

UC3903 Datasheet (827.70 KB)