MAX6831SVUT+T by Analog Devices

Dual, Ultra-Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer


The MAX6826—MAX6831 are ultra-low-voltage microprocessor (µP) supervisory circuits designed to monitor two power supplies and have manual reset and watchdog input functions. These devices assert a system reset if any of the monitored supplies fall below the preprogrammed thresholds, and maintain reset for a minimum timeout period after the supplies rise above the threshold. Microprocessor supervisors significantly improve system reliability and accuracy compared to separate ICs or discrete components. These devices monitor primary voltages from +1.8V to +5.0V and secondary voltages from +0.9V to +2.5V. These devices are guaranteed to be in the correct state for VCC down to +1.0V. A variety of preprogrammed reset threshold voltages are available (see the Threshold Suffix Guide). The devices include manual reset and watchdog inputs. The MAX6829/MAX6830/MAX6831 provide a factory-trimmed threshold to monitor a 2nd voltage down to +0.9V. The MAX6826/MAX6829 have a push-pull active-low RESET, the MAX6827/MAX6830 have a push-pull RESET and the MAX6828/MAX6831 have an open-drain active-low RESET. The MAX6826/MAX6827/MAX6828 have an auxiliary monitor that allows user adjustable input to monitor voltages down to +0.6V. See Selector Guide for functions available.

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Prices starting from US$0.84

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Features

Monitor Primary VCC Supplies from +1.8V to +5.0V and Secondary VCC2 Supplies from +0.9V to +2.5V
User Adjustable RESET IN Down to +0.63V (MAX6826/MAX6827/MAX6828)
140ms (min) Reset Timeout Delay
1.6s Watchdog Timeout Period
Manual Reset Input
Three Reset Output Options
Push-Pull active-low RESET
Push-Pull RESET
Open-Drain active-low RESET
Guaranteed Reset Valid Down to VCC = +1.0V
Immune to Short Negative VCC Transients
No External Components
Small 6-pin SOT23 Packages

Specifications

Reset Thresh. (V) 0 to 1.21.2 to 1.81.8 to 2.52.5 to 3.33.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 2.5
Reset Out Active LowOpen Drain
Interface Factory Fixed
tRESET (min) 85ms to 300ms
Watchdog Feature Input (WDI)
Watchdog Timeout 1s to 2s
Supervisor Features Manual Reset
ICC (µA) (max) 16
Package/Pins SOT23/6
BudgetaryPrice (See Notes) 2.27


MAX6831SVUT+T Power Management ICs - PMIC by Analog Devices

MP SUPERVISOR W/ WATCHDOG DUAL SOT23-6

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Threshold Voltage -
No. of Supervisors / Monitors 2Monitors
Supply Voltage Min 1.2V
Supply Voltage Max 5.5V
Reset Type Manual Active-Low Open-Drain
Digital IC Case SOT-23
No. of Pins 6Pins
Delay Time 200ms
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Dual, Ultra-Low-Voltage SOT23 | Analog Devices
MP SUPERVISOR W/ WATCHDOG, DUAL, SOT23-6 | element14
Mp Supervisor W/ Watchdog, Dual, Sot23-6 | Newark Electronics

Frequently Asked Questions

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Is the MAX6831SVUT+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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