DS1831

www.DataSheet4U.com DS1831/A/B Multisupply Micromonitor PIN ASSIGNMENT DS1831 IN5V RST5V TOL5V TD5V PBRST5V IN1 IN2 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IN3.3V RST3.3V TOL3.3V TD3.3V PBRST3.3V NMI1 NMI2 MPBRST www.maxim-ic.com FEATURES § § § § § § § § § § § § 5V power-on reset 3.3V power-on reset Two referenced comparators with separate outputs for monitoring additional supplies Internal power is drawn from higher of either the IN5V input or the IN3.3V input Excellent for systems designed to operate with multiple power supplies Asserts resets during power transients Pushbutton reset input for system override Maintains reset for user configurable times of 10ms, 100ms, or 1s Watchdog timer for software monitoring (DS1831A) Precision temperature-compensated voltage reference and voltage sensor 16 pin DIP and 16 pin 150mil SO available Operating Temperature of -40°C to +85°C DS1831A IN5V RST5V TOL5V TD5V PBRST5V IN1 ST GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IN3.3V RST3.3V TOL3.3V TD3.3V PBRST3.3V NMI1 WDS TDWD 16-Pin (300mil) DIP & 16-Pin (150mil) SO DS1831B IN5V RST5V TOL5V TD5V PBRST5V IN1 IN2 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IN3.3V RST3.3V TOL3.3V TD3.3V PBST NMI1 NMI2 MPBRST 16-Pin (300mil) DIP & 16-Pin (150mil) SO 16-Pin (300mil) DIP & 16-Pin (150mil) SO DESCRIPTION The DS1831 multisupply monitor and reset monitors up to four system voltages: 5V supply, 3.3V (or 3V) supply, and two additional user configurable voltage monitors. DS1831 power for in...