UAA1300

Signetics Mlcrocontroller Products Voltage regulator with watchdog for microprocessor/controller systems Preliminary specification UAA1300 FEATURES Driving circuit for external PNP power transistor with adjustable output voltage via sense path, short-circuit protected Additional 5 Vl50 rnA output for RAM buffering, short-circuit protected Operating voltage range: 5.7 V to 24V Reset with adjustable trigger pulse length activated by output voltage <4.6V Watchdog with adjustable input trigger window Dual polarity reset and watchdog output pulse Low line detection adjustable by external resistor ratio Enable input to activate watchdog and driving circuit Low quiescent current typical: 380~A Thermal protection GENERAL DESCRIPTION The UAA1300 is a bipolar IC voltage regulator especially designed for use within an automotive environment and also suitable to provide enhanced facilities within many microcontroller applications. The UAA1300 provides two ...