DS1818R-20+T&R by Analog Devices

3.3V EconoReset with Pushbutton


The DS1813 (5V) and DS1818 (3.3V) EconoResets are simple three-pin voltage monitors and power-on resets that hold reset for 150ms for stabilization after power returns to tolerance. The voltage monitor uses precision temperature reference and comparator circuits that detect out-of-tolerance conditions and generate an active low reset. The DS1818 has an open-drain output with an internal 5.5kΩ pull-up resistor for use in a wired-AND circuit. The DS1818 also monitors a pushbutton on the reset output, generating a reset when the pushbutton is released. EconoResets replace discrete components and save space, particularly in the new SOT-23 package. They can benefit any system that requires reliable processor operation, especially consumer products like printers, HVAC, energy management, cellular telephones, PDAs, and set-top boxes.

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Prices starting from US$1.81

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Features

Improves Reliability of Processor Operation Temperature-Compensated Voltage Monitor for Precise, Automated Power-Fail Detection Automatically Restarts a Microprocessor After Power Failure Maintains Reset for 150ms After VCC Returns to Tolerance for Processor Stabilization Monitors Pushbutton for External Override Active-Low Reset Output
Temperature-Compensated Voltage Monitor for Precise, Automated Power-Fail Detection
Automatically Restarts a Microprocessor After Power Failure
Maintains Reset for 150ms After VCC Returns to Tolerance for Processor Stabilization
Monitors Pushbutton for External Override
Active-Low Reset Output
Efficient Open-Drain Output with Internal 5.5kΩ Pullup Resistor Saves Power and Space 35µA (max) Quiescent Current
35µA (max) Quiescent Current
Allows for Easy Design with No Complicated Settings Fixed 3.3V Reset Threshold 5%, 10%, and 20% Tolerance Versions Available
Fixed 3.3V Reset Threshold
5%, 10%, and 20% Tolerance Versions Available
Operates in Most Commercial and Industrial Environments -40°C to +85°C Operating Temperature Range
-40°C to +85°C Operating Temperature Range
MXD1818 Offers Improved Performance over the DS1818

Specifications

Reset Thresh. (V) 2.5 to 3.3
Reset Thresh. Accur. (%) (@ +25°C) 2.5
Reset Out Active LowOpen Drain
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Manual Reset
ICC (µA) (max) 35
Package/Pins SOT23/3TO92/3
BudgetaryPrice (See Notes) 1.42


DS1818R-20+T&R Power Management ICs - PMIC by Analog Devices

MPU SUPERVISOR 5.5V SOT-23-3

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

Specifications

Threshold Voltage 2.55V
No. of Supervisors / Monitors 1Monitors
Supply Voltage Min 1V
Supply Voltage Max 5.5V
Reset Type Active-Low Open-Drain
Digital IC Case SOT-23
No. of Pins 3Pins
Delay Time 150ms
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

3.3V EconoReset with Pushbutto | Analog Devices
MPU SUPERVISOR, 5.5V, SOT-23-3 | Farnell

Frequently Asked Questions

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Is the DS1818R-20+T&R RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices and Farnell have stock available or on a lead time for DS1818R-20+T&R .

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