5962-8869701VA

The Texas Instruments UC1903 family, represented by the 5962-8869701VA part number, comprises quad supply and line monitor integrated circuits. These devices are engineered to detect under- and over-voltage conditions across up to four continuously monitored voltage levels. An integrated op-amp inverter facilitates the sensing of at least one negative voltage level. A dedicated line/switcher sense input provides early warning of potential power source failures.

The fault window adjustment circuit allows for straightforward programming of under- and over-voltage thresholds. These thresholds are centered around a precision 2.5-V reference and incorporate input hysteresis that scales with the window width for precise, glitch-free operation. The device supports 8-V to 40-V supply operation with a 7-mA stand-by current.

The UC1903 features three high-current, open-collector outputs capable of sinking in excess of 30 mA. These outputs indicate over-voltage, under-voltage, and power OK conditions. The under- and over-voltage outputs respond after user-defined delays to respective fault conditions. The third output is active during any fault, including under- and over-voltage, line/switcher faults, and input supply under-voltage. The 5962-8869701VA is supplied in a 18-pin CDIP (J) package, suitable for through-hole mounting.