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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 128kB) Download   E-Mail

Description

The DS1812 (5V) and DS1817 (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 high reset. The output has a push-structure capable of maintaining a valid output to 0 volts with a 100kΩ pull-down resistor. The low-power circuit has a quiescent current consumption of only 40 micro-amps. The DS1817 replaces discrete components and saves space, particularly in the new SOT-23 package. EconoResets can benefit any system that requires reliable processor operation, especially consumer products like printers, HVAC, energy management, cellular telephones, PDAs, and set-top boxes.

Key Features

Power-fail detection Resets system during power transients Push-pull active high reset 150ms stabilization pause Maximum quiescent current of 35µA Operating ranges: 3.3V with 5%, 10% or 20% tolerance -40°C to +85°C

Diagram

Block Diagram

Application Notes

Application Note 3316: Dallas Semiconductor Microprocessor Supervisor Selection Guide - DS1817

Design Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report: DS1817.pdf

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-18 of 18

DS1817	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1817R-10+T&R	3.3V-10%			Active	SOT;3 pin;8 mm² Outline Drawing: 21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1817R-20+T&R	3.3V-20%			Active	SOT;3 pin;8 mm² Outline Drawing: 21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1817R-5+T&R	3.3V-5%			Active	SOT;3 pin;8 mm² Outline Drawing: 21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1817R-5/T&R	3.3V-5%			Active	SOT;3 pin;8 mm² Outline Drawing: 21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1817R-10/T&R	3.3V-10%			Active	SOT;3 pin;8 mm² Outline Drawing: 21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1817R-20/T&R	3.3V-20%			Active	SOT;3 pin;8 mm² Outline Drawing: 21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1817-20+				Active	TO92;3 pin;20 mm² Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1817-10+				Active	TO92;3 pin;20 mm² Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1817-5+				Active	TO92;3 pin;20 mm² Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1817-5	3.3V-5% Monitor			Active	TO92;3 pin;20 mm² Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1817-10	3.3V-10% Monitor			Active	TO92;3 pin;20 mm² Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1817-20	3.3V-20% Monitor			Active	TO92;3 pin;20 mm² Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1817-5/T&R	3.3V-5%			Active	TO92;3 pin;28 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1817-10/T&R	3.3V-10%			Active	TO92;3 pin;28 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1817-20/T&R	3.3V-20%			Active	TO92;3 pin;28 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1817-10+T&R	3.3V-10%			Active	TO92;3 pin;28 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1817-20+T&R	3.3V-20%			Active	TO92;3 pin;28 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1817-5+T&R	3.3V-5%			Active	TO92;3 pin;28 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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