Product Summary

The DS1831S+ is a multisupply Micromonitor and reset monitors up to four system voltages: 5V supply, 3.3V (or 3V) supply, and two additional user configurable voltage monitors. The DS1831S+ power for internal operation comes from the higher voltage level of the 3.3V input or the 5V input. One of these inputs must be greater than 1V for device operation. Pushbutton (manual reset) functionality is provided for the 5V reset, the 3.3V reset or for all reset outputs by the master pushbutton.

Parametrics

DS1831S+ absolute maximum ratings: (1)Voltage on IN5V or IN3.3V Pins Relative to Ground: -0.5V to +6.0V; (2)Voltage on either RST Relative to Ground: -0.5V to the greater of IN5V + 0.5V or IN3.3V + 0.5V; (3)Voltage on PBRST 3.3V Relative to Ground: -0.5V to IN3.3V + 0.5V; (4)Voltage on PBRST 5V Relative to Ground: -0.5V to IN5V + 0.5V; (5)Voltage on MPBRST, IN1, IN2 Relative to Ground: -0.5V to the greater of IN5V + 0.5V or IN3.3V + 0.5V; (6)Operating Temperature Range: -40℃ to +85℃; (7)Storage Temperature Range: -55℃ to +125℃; (8)Soldering Temperature: See IPC/JEDEC J-STD-020A specification.

Features

DS1831S+ features: (1)5V power-on reset; (2)3.3V power-on reset; (3)Two referenced comparators with separate outputs for monitoring additional supplies; (4)Internal power is drawn from higher of either the IN5V input or the IN3.3V input; (5)Excellent for systems designed to operate with multiple power supplies; (6)Asserts resets during power transients; (7)Pushbutton reset input for system override; (8)Maintains reset for user configurable times of 10ms, 100ms, or 1s; (9)Watchdog timer for software monitoring (DS1831A); (10)Precision temperature-compensated voltage reference and voltage sensor; (11)16 pin DIP and 16 pin 150mil SO available; (12)Operating Temperature of -40℃ to +85℃.

Diagrams

DS1831S+ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
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DS1831S+
DS1831S+

Maxim Integrated Products

Supervisory Circuits 3.3/5V Multisupply MicroMonitor

Data Sheet

0-1: $4.78
1-25: $3.22
25-50: $2.33
50-100: $2.30
DS1831S+T&R
DS1831S+T&R

Maxim Integrated Products

Supervisory Circuits 3.3/5V Multisupply MicroMonitor

Data Sheet

0-2080: $1.96
2080-2500: $1.96